1C-5M-23-1.pdf

TO 1C-5M-23-1

TECHNICAL MANUAL

ORGANIZATIONAL MAINTENANCE

AIRCRAFT WASHING AND CLEANING

USAF SERIES

C-5M

AIRCRAFT

This revision supersedes TO 1C-5M-23–1, dated 10 December 2012.

DISTRIBUTION STATEMENT D - Distribution authorized to the Department of Defense and U.S. DoD contractors only (Administrative or Operational Use) (25 August 2011). Other requests shall be referred to AFLCMC/WLSA, 235 Byron St., Suite 19A, Robins AFB, GA 31098- 1670. Questions concerning technical content shall be referred to AFLCMC/WLSE, 235 Byron St., Suite 19A, Robins AFB, GA 31098-1670.

WARNING - This document contains technical data whose export is restricted by the Arms Export Control Act (Title 22, U.S.C., Sec 2751, et seq.) or the Export Administration Act of 1979, as amended Title 50, U.S.C., App. 2401 et seq. Violations of these export laws are subject to severe criminal penalties. Disseminate in accordance with provisions of DoD Directive 5230.25.

HANDLING AND DESTRUCTION NOTICE - Comply with distribution statement and destroy by any method that will prevent disclosure of contents or reconstruction of the document.

Published Under Authority of the Secretary of the Air Force

30 APRIL 2017

Dates of issue for original and changed pages are:

Original. . . . . . . .0. . . . . . .30 April 2017

TOTAL NUMBER OF PAGES IN THIS PUBLICATION IS 108, CONSISTING OF THE FOLLOWING:

Page *Change No. No.

Page *Change No. No.

Page *Change No. No.

Title A i - ix x Blank 1-1 - 1-3 1-4 Blank 2-1 - 2-2 3-1 - 3-2 4-1 - 4-2 5-1 - 5-2 6-1 6-2 Blank 7-1 - 7-82

TO 1C-5M-23-1

LIST OF EFFECTIVE PAGES INSERT LATEST CHANGED PAGES. DESTROY SUPERSEDED PAGES.

NOTE The portion of the text affected by the changes is indicated by a vertical line in the outer margins of the page. Changes to illustrations are indicated by shaded or screened areas, or by miniature pointing hands.

* Zero in this column indicates an original page.

A USAF

TABLE OF CONTENTS

Chapter Page

LIST OF ILLUSTRATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . iv

LIST OF TABLES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . iv

INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . v

SAFETY SUMMARY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . vii

1 AIRCRAFT WASH CLEANING COMPOUNDS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1

1.1 PURPOSE. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1

1.2 CLEANING COMPOUND REQUIREMENTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1

1.3 EXTERIOR SURFACES AND INTERIOR OF CARGO DOORS . . . . . . . . . . . . . . . . . . . . 1-1

1.3.1 Light Soils . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1

1.3.2 Moderate Soils. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1

1.3.3 Heavy Soils. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1

1.4 WHEEL WELLS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1

1.4.1 Light and Moderate Soils . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1

1.4.2 Heavy Soils. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1

1.5 LANDING GEAR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1

1.5.1 Exposed Piston Surfaces and Kneeling Ballscrews. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1

1.5.2 Other than Exposed Piston Surfaces . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1

1.5.2.1 Light and Moderate Soils . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1

1.5.2.2 Heavy Soils. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2

1.6 BILGE AREAS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2

1.6.1 Light and Moderate Soils . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2

1.6.2 Heavy Soils. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2

1.7 INTERIOR OF UPPER DECK AND CARGO COMPARTMENT FLOORS . . . . . . . . . . . . . 1-2

1.7.1 Light and Moderate Soils . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2

1.7.2 Heavy Soils. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2

1.8 INTERIOR TRIM PANELS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2

1.9 WINDOWS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3

1.10 GALLEYS AND LAVATORIES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3

2 AIRCRAFT WASH CLEANING PADS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1

2.1 PURPOSE. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1

2.2 CLEANING PADS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1

2.3 MELAMINE PADS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1

2.4 WHITE SCOTCH-BRITE™ PADS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1

2.5 CONFORMABLE PAD HOLDER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1

3 AIRCRAFT WASH COVERS, TOOLING, FIXTURES, AND EQUIPMENT . . . . . . . . . . . . . . . . . . . 3-1

3.1 PURPOSE. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1

3.2 WASH OPERATIONS REQUIREMENTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1

4 AIRCRAFT WASH REQUIREMENTS (SCHEDULED). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1

4.1 PURPOSE. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1

4.2 SCHEDULED WASH MAINTENANCE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1

4.3 COMPLETE EXTERIOR WASH . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1 i

4.3.1 High Pressure Equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1

4.3.2 Designated Areas for Parts. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1

4.4 COMPLETE CARGO COMPARTMENT WASH . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1

4.4.1 Pressurized Water . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1

4.4.2 Non-Pressurized Water . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1

4.5 CARGO UNDERFLOOR (BILGE) WASH . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2

4.6 CREW COMPARTMENT INTERIOR CLEANING. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2

4.7 TROOP COMPARTMENT INTERIOR CLEANING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2

4.8 CARGO COMPARTMENT INTERIOR CLEANING. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2

4.8.1 Water Hose . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2

4.8.2 Services . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2

5 AIRCRAFT WASH OPTIONS (UNSCHEDULED) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1

5.1 PURPOSE. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1

5.2 TYPES OF WASHING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1

5.2.1 Half Wash . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1

5.2.2 Mission Readiness Wash . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1

5.2.3 Clear Water Rinse . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1

5.2.4 Spot Wash. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2

5.2.5 Volcanic Ash Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2

6 AIRCRAFT WASH CONTRACTOR. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1

6.1 PERSONNEL RESPONSIBILITY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1

7 AIRCRAFT WASH PROCEDURES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-1

7.1 WASH SITE PREPARATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-1

7.2 AIRCRAFT CONFIGURATION FOR WASH. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-1

7.3 AIRCRAFT MASKING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-2

7.3.1 Masking Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-2

7.4 WASH SEQUENCE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-2

7.5 WASH PROCESS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-3

7.5.1 Exterior Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-6

7.5.1.1 Aircraft Exterior Surfaces . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-6

7.5.1.2 Pylons, Cowl Doors, and Engines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-7

7.5.1.3 Wheel Wells and Landing Gear Doors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-8

7.5.1.4 Landing Gear . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-9

7.5.1.5 Windows. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-16

7.5.2 Missile Warning System (MWS). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-16

7.5.3 Infrared Countermeasures System (IRCM) (Airplanes Modified by TO 1C-5-799) . . . . . . . . . 7-16

7.5.4 Interior Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-16

7.5.4.1 Interior Surfaces of Aft Cargo Doors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-17

7.5.4.2 Cargo Compartment Floor and Chine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-17

7.5.4.3 Cargo Compartment Roller Channels. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-18

7.5.4.4 Batteries . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-18

7.5.4.5 Cargo Underfloor Compartment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-19

7.5.4.6 Upper Deck Honeycomb Floor Board Covering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-19

7.5.4.7 Seats . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-20

7.5.4.8 Avionics Racks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-20

7.5.4.9 Interior Trim . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-21

7.5.4.10 Crew Entry Door . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-21

7.5.4.11 Walkways and Ladder Handrails . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-21

7.5.4.12 Crew and Troop Lavatories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-22

TO 1C-5M-23-1

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7.5.4.13 Crew and Troop Galleys . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-22

7.6 POST WASH INSPECTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-22

7.7 POST WASH LUBRICATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-23

7.8 AIRCRAFT RESTORATION AFTER WASH. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-23

TO 1C-5M-23-1

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LIST OF ILLUSTRATIONS

Number PageTitle

7-1 Aircraft Wash Sequence. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-5 7-2 Nose Landing Gear . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-12 7-3 Main Landing Gear. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-13 7-4 Mechanisms above MLG Crosshead . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-14 7-5 Landing Gear Covers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-15 7-6 Aircraft Restoration after Wash . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-26 7-7 Aircraft Wash Masking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-44 7-8 Aircraft Post Wash Cleanliness Inspection Checklist. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-78

LIST OF TABLES

Number PageTitle

1-1 Aircraft Wash Soaps, Solvents and Cloths . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2 2-1 Aircraft Wash Cleaning Pads . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1 3-1 Aircraft Wash Covers and Masking Materials . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1 3-2 Aircraft Wash Support Fixture and Equipment. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2 7-1 Aircraft Configuration for Wash . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-24 7-2 Aircraft Mask Checklist. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-42 7-3 Aircraft Post Wash Cleanliness Inspection Checklist. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-71 7-4 Aircraft Restoration after Wash . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-82 iv

INTRODUCTION

1 PURPOSE OF MANUAL.

This technical data provides instructions for aircraft washing. These instructions serve as a supplement and take precedence to procedures provided in TO 1C-5M-23, TO 1-1-691, and are to be used as a guide while performing the work to ensure that no item is overlooked.

2 CLEANING REQUIREMENTS.

A complete exterior and interior cleaning shall be accomplished as directed by this checklist, TO 1C-5M-23 and TO 1-1-691.

Aircraft washes must be accomplished during scheduled wash cycles, prior to every Minor/Major Isochronal (ISO) inspec-tion, and prior to every refurbishment.

• Use only clean/fresh tap water with low chloride content for washing and rinsing operations per TO 1-1-691, Chapter 3.

3 AIRCRAFT WASHING REQUIREMENTS.

• Prevent corrosion by removing corrosive fluids (latrine fluid) and soils (sand), salt deposits, and electrolytes (deic-ing fluid).

• Allow a thorough structural inspection for cracks and corrosion.

3.1 Aircraft Wash Intervals. Units must adhere strictly to the aircraft wash and rinse cycles specified for each location in TO 1-1-691, Chapter 3. The wash interval specified in TO 1-1-691 reflects the maximum interval and must never be exceeded.

• All aircraft deployed to locations more severe than home station for a period of 30 days or more, requires an entry in the aircraft forms to perform a wash within 30 days after return to home station.

• Areas of aircraft and equipment exposed to corrosive fire extinguishing materials must be washed within 4 hours after application in accordance with TO 1C-5M-23, Chapter 1, and TO 1-1-691, Chapter 8.

NOTE

When unique operational requirements, contingencies, or facility limitations severely impact a unit’s ability to wash as prescribed in TO 1-1-691, Table 3-1, the requirement can be temporarily waived, but only by the Aircraft System Program Office (SPO). Each waiver is valid to only extend wash interval for a period not to exceed one year, unless requirements change.

4 LUBRICATION.

Lubrication interval per TO 1C-5M-6WC-13 must never be permitted to exceed 180 days.

5 LATRINE.

Aircraft latrine areas have been a primary source of structural corrosion on C-5 aircraft. The following areas are susceptible to latrine leaks and must be cleaned thoroughly at least every 180 days, or after any leak is detected, to avoid future corrosion problems.

• Crew latrine drainage area on right hand side of cargo compartment and cargo underfloor between FS 804 and FS 824.

• Troop latrine drainage area on right hand side of cargo compartment between FS 1453 and FS 1470.

v

• Troop latrine ground service area on right hand side of MLG wheel well fairing between FS 1428 and FS 1478.

• Interior of forward MLG fairing pod on right hand side.

6 ARRANGEMENT OF THE MANUAL.

The chapters of this manual are numbered as follows:

Chapter 1 Aircraft Wash Cleaning Compounds Chapter 2 Aircraft Wash Cleaning Pads Chapter 3 Aircraft Wash Covers, Tooling, Fixtures and Equipment Chapter 4 Aircraft Wash Requirements (Scheduled) Chapter 5 Aircraft Wash Options (Unscheduled) Chapter 6 Aircraft Wash Contractor Chapter 7 Aircraft Wash Procedures

7 RELATED PUBLICATIONS.

List of Related Publications

Number Title TO 1C-5M-23 System Peculiar Corrosion Control Manual TO 1-1-691 Aircraft Weapons Systems Cleaning and Corrosion Control TO 1-1-8 Application and Removal of Organic Coatings, Aerospace and Non-Aerospace Equip-ment

8 ABBREVIATIONS AND SYMBOLS.

Abbreviations and Symbols used in this manual are in accordance with Military Standard ASME Y14.38M.

CPC Corrosion Preventive Compound FSS Fire Suppression System IRCM Infrared Countermeasures System ISO Minor/Major Isochronal LHS Left Hand Side MLG Main Landing Gear MWS Missile Warning System NDI Non-Destructive Inspection NLG Nose Landing Gear P/TA Pointer/Tracker Assemblies QAR Quality Assurance Representative RH Right Hand RHS Right Hand Side SPO System Program Office

9 RECORD OF APPLICABLE TIME COMPLIANCE TECHNICAL ORDERS.

Time Compliance Technical Orders (TCTO’s) authorize and give instructions for inspection or modification of the airplane.

When a TCTO is issued for a change which modifies an airplane system or component, information applicable to the change is added to the manual and identified by reference to the TCTO. After the TCTO has been incorporated on all affected airplanes, the information which was applicable to unmodified airplanes is removed from the manual, and reference to the TCTO will be removed from the manual.

vi

SAFETY SUMMARY

1 GENERAL SAFETY INSTRUCTIONS.

This manual describes physical and chemical processes which may cause injury or death to personnel, or damage to equipment if not properly followed. This safety summary includes general safety precautions and instructions that must be understood and applied during operation and maintenance to ensure personnel safety and protection of equipment. Prior to performing any task the WARNINGs, CAUTIONs and NOTEs included in that task shall be reviewed and understood.

2 WARNINGS, CAUTIONS AND NOTES.

Highlights an essential operating or maintenance procedure, practice, condition, statement, etc, which if not strictly observed, could result in injury to, or death of, personnel or long term health hazards.

Highlights an essential operating or maintenance procedure, practice, condition, statement, etc, which if not strictly observed, could result in damage to, or destruction of, equipment or loss of mission effectiveness.

WARNINGs, CAUTIONs are used in this manual to highlight operating or maintenance procedures, practices, conditions, or statements which are considered essential to protection of personnel (WARNING) or equipment (CAUTION). WARNINGs and CAUTIONs immediately precede the step or procedure to which they apply. WARNINGs and CAUTIONs consist of four parts: heading (WARNING, CAUTION or Icon HAZARDOUS MATERIALS WARNINGS), a statement of the hazard, minimum precautions, and possible result if disregarded. NOTEs are used in this manual to highlight operating or mainte-nance procedures, practices, conditions or statements which are not essential to protection of personnel or equipment.

NOTEs may precede or follow the step or procedure, depending upon the information to be highlighted. The headings used and their definitions are as follows:

NOTE

Highlights an essential operating or maintenance procedure, practice, condition, statement.

3 SAFETY PRECAUTIONS.

The supervisor will ensure that personnel are familiar with AFOSH 91-100, AFOSH 91-501, TO 1C-5M-23, TO 1-1-8A, and TO 1-1-691. Supervisor will brief all personnel of personal injury hazards as follows:

• Avoid breathing toxic fumes.

• Avoid skin contact with compounds.

• Avoid climbing on wet surfaces by using long handled brushes and maintenance stands. When it is absolutely necessary to walk on aircraft wing during washing, an approved fall restraint system will be used and extreme care will be exercised.

• Ensure proper use of guard rails on stands.

• In the event of chemical injury, seek medical aid immediately.

• In the event of cleaner being splashed in eyes, rinse thoroughly with fresh water for 15 minutes, seek medical attention.

vii

• Remove clothing saturated with cleaning solution immediately and flush exposed skin areas with fresh water.

• While washing and cleaning the aircraft, personnel will wear eye protection, gloves, and clothing, as required by TO 1-1-691. However, when high temperatures (80 °F and above) are experienced outside, personnel should take an occasional break from washing activities to preclude the possibility of heat related illnesses (heat stroke, dehydra-tion, etc.).

• Solvents will not be mixed with the cleaning compound solution.

• Compressed air used for cleaning can create airborne particles that may enter the eyes. Pressure will not exceed 30 PSI. Eye protection is required.

• Cleaning compounds per MIL-PRF-87937 are toxic to skin, eyes and respiratory tract. Avoid skin and eye contact.

Good general ventilation is normally adequate.

• Ensure all watches, rings, and jewelry are removed during any process described in the enclosed procedures.

• Products shall be properly diluted in accordance with TO 1-1-691.

• Only MIL-PRF-87937, Type III or IV, soaps are approved for use on C-5 aircraft. The use of MIL-PRF-87937, Type I or II, soaps are not approved. MIL-PRF-87937, Type IV, is diluted one part cleaner to nine parts water and used on aircraft to remove light soils.

• MIL-PRF-87937, Type III, is used UNDILUTED on the landing gear, inside the wheel wells, and on vertical and overhead surfaces.

• MIL-PRF-87937, Type IV, is diluted one part cleaner to nine parts water and used on aircraft to remove heavy soils, such as exhaust deposits and grease.

NOTE

• When MIL-PRF-87937 cleaning compounds do not completely clean an area, dry cleaning solvents can be used in small quantities. The quantity used shall be limited to the minimum necessary to accomplish the required cleaning per TO 1-1-691.

• To be most effective, MIL-PRF-680 and A-A-59601 dry cleaning solvents are applied full strength with no pre-rinsing of the surface.

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• MIL-PRF-680, Type II, III (low odor), IV, or A-A-59601, Type II or Type III (low odor), dry cleaning solvents are used as cleaners and degreasers to remove stubborn soils, oil or grease stains and corrosion preventive compounds, on painted and unpainted metal parts.

• MIL-PRF-680, Type III, or A-A-59601, Type III, low odor solvents must be used in confined spaces such as the bilge.

• The dwell time for all types of MIL-PRF-680 and A-A-59601 dry cleaning solvents should be held to a minimum (less than 15 minutes) to avoid damage to paint.

• Disinfectant cleaner per AMS1453 and AMS1452 should be used when cleaning galleys and lavatories. Ap-proved products include EnviroTru 1453, which is provided ready to use, or Calla 1452, which must be diluted one part cleaner to thirty two parts water.

• Only unbleached, low lint, cleaning cloths may be used per CCC-C-440, Type I or II, Class 1, or A-A-59323, Type II, or AMS3819, Class 1, Grade A or B.

• Only clean flannel cotton cloths conforming to A-A-50129 may be used on windows.

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CHAPTER 1

AIRCRAFT WASH CLEANING COMPOUNDS

1.1 PURPOSE.

The purpose of this chapter is to provide cleaning compounds and corresponding dilutions required for each area or item on aircraft.

1.2 CLEANING COMPOUND REQUIREMENTS.

MIL-PRF-87937 cleaning compound is toxic to eyes, skin, and respiratory tract. Avoid all contact. Skin and eye protection required. Use only with adequate ventilation. Failure to comply could result in injury to, or death of, personnel or long term health hazards.

Only QPL approved chemicals, cleaning compounds, solvents, sponges and cleaning cloths specified by technical orders and military specifications shall be used on aircraft, as shown in Table 1-1. All containers shall be stenciled as to contents.

1.3 EXTERIOR SURFACES AND INTERIOR OF CARGO DOORS.

The following is a list of cleaning compound types:

1.3.1 Light Soils. For removal of light soils, dirt, dust, mud, salt, and loose soot, mix one part MIL-PRF-87937, Type IV, soap with nine parts water.

1.3.2 Moderate Soils. For removal of moderate soils, hydraulic fluids, lube soils, light preservatives, mix one part MIL-PRF-87937, Type IV, soap with four parts water.

1.3.3 Heavy Soils. For removal of heavy soils, carbonized oil, aged preservatives, grease, and exhaust deposits, use MIL-PRF-87937, Type III, soap A-A-59601 or MIL-PRF-680, Type II or IV degreasing solvent or MIL-PRF-32295, Type II, all undiluted.

1.4 WHEEL WELLS.

Protect landing gear from contact with degreasing solvents or cleaning solutions.

1.4.1 Light and Moderate Soils. For removal of light and moderate soils, use MIL-PRF-87937, Type III, soap undiluted.

1.4.2 Heavy Soils. For removal of heavy soils, use A-A-59601 or MIL-PRF-680, Type II or Type IV, degreasing solvent or MIL-PRF-32295, Type II, all undiluted.

1.5 LANDING GEAR.

Protect tires from contact with degreasing solvents or cleaning solutions.

1.5.1 Exposed Piston Surfaces and Kneeling Ballscrews. MIL-PRF-83282, hydraulic fluid. Apply using unbleached, low lint, cleaning cloths per CCC-C-440, Type I or II, Class 1, or A-A-59323, Type II, or AMS3819, Class 1, Grade A or B.

1.5.2 Other than Exposed Piston Surfaces.

1.5.2.1 Light and Moderate Soils. For removal of light and moderate soils use MIL-PRF-87937, Type III, soap undi-luted.

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1.5.2.2 Heavy Soils. For removal of heavy soils, use A-A-59601, MIL-PRF-680, Type II or IV, degreasing solvent or MIL-PRF-32295, Type II, all undiluted.

1.6 BILGE AREAS.

1.6.1 Light and Moderate Soils. For removal of light and moderate soils use MIL-PRF-87937, Type IV, soap diluted one part cleaner in nine parts water.

1.6.2 Heavy Soils. For removal of heavy soils grease, and heavy soil buildup, use A-A-59601 or MIL-PRF-680, Type III (Low Odor), Degreasing Solvent (Do not use Type I or II degreasing solvent in confined spaces).

1.7 INTERIOR OF UPPER DECK AND CARGO COMPARTMENT FLOORS.

1.7.1 Light and Moderate Soils. For removal of light and moderate soils use MIL-PRF-87937, Type IV, soap diluted one part cleaner in nine parts water.

1.7.2 Heavy Soils. For removal of heavy soils, grease, and heavy soil buildup, use A-A-59601 or MIL-PRF-680, Type II, Type III, Type IV degreasing solvent or MIL-PRF-32295, Type II, all undiluted.

1.8 INTERIOR TRIM PANELS.

For the cleaning of interior trim panels use MIL-PRF-87937, Type IV, soap diluted one part cleaner in nine parts water.

Table 1-1. Aircraft Wash Soaps, Solvents and Cloths

Item Name Specification/Part Number NSN 1 Heavy Duty, Water Dilutable, Clean-ing Compound MIL-PRF-87937, Type IV TO 1-1-691, Table A-2

2 Gel-Type Cleaning Compound MIL-PRF-87937, Type III TO 1-1-691, Table A-2 3 Dry Cleaning and Degreasing Sol-vent MIL-PRF-680, Type II, Type IV, or

A-A-59601, Type II TO 1-1-691, Table A-2

4 Dry Cleaning and Degreasing Sol-vent for Confined Spaces (Low Odor, Very High Flash Point)

MIL-PRF-680, Type III, or A-A- 59601, Type III

TO 1-1-691, Table A-2

5 Boric Acid to Neutralize Deposits from Batteries

A-A-59282 TO 1-1-691, Table A-2

6 Disinfectant Cleaner for Aircraft In-terior

EnviroTru 1453 or Calla 1452 per AMS1453 and AMS1452

TO 1-1-691, Table A-2, or 6840-01-561-3126

7 Unbleached, Low-Lint, Cleaning Cloth

CCC-C-440, Type I or II, Class 1 8305-00-222-2423

A-A-59323, Type II 7920-00-044-9281 AMS3819, Class 1, Grade A or B Not Available

8 Cotton Flannel Cloth A-A-50129 8305-00-913-5817 9 Lint Free Cloth for Cleaning Avionic and Electronic Equipment MIL-DTL-24671 TO 1-1-689-5, Table 2-4

10 Sponge, Synthetic A-A-2073, Type I, Style B, Class 1 7920-00-633-9915 11 NASOLVE - Low VOC Cleaner and

Degreaser MIL-PRF-32295, Type II 6850-01-606-8358

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1.9 WINDOWS.

For the cleaning of windows use MIL-PRF-87937, Type IV, soap that is diluted one part cleaner in nine parts water. Apply using clean flannel cotton cloths conforming to A-A-50129.

1.10 GALLEYS AND LAVATORIES.

Disinfectant cleaner per AMS1453 and AMS1452. Approved products include EnviroTru 1453, which is provided ready to use, or Calla 1452, which must be diluted one parts cleaner to 32 parts water.

1-3/(1-4 blank)

CHAPTER 2

AIRCRAFT WASH CLEANING PADS

2.1 PURPOSE.

The purpose of this chapter is to provide instructions on cleaning pads, covers, and materials approved for use on aircraft.

2.2 CLEANING PADS.

Do not use cleaning pads on windshields or windows. Failure to comply could result in damage to, or destruction of, equipment or loss of mission effectiveness.

The relative cleaning efficiency of the melamine formaldehyde wash pad is superior to the efficiency of the white “scotch-brite™ pad”. Listing of approved wash pads and corresponding cleaning pad holder are provided in Table 2-1.

NOTE

Melamine pads must still be used with soap and water and are not approved for use with water alone on C-5 aircraft.

2.3 MELAMINE PADS.

The white melamine pads (6 inch x 12 inch x 1 inch) per NSN 7920-01-526-9003 are recommended for use on the C-5 aircraft, especially in the sooty exhaust tract and fluid streaked areas, in lieu of the 3M white “scotch-brite™” pads. The melamine wash pads are designed to disintegrate with use and be discarded when white foam has worn through to backing.

2.4 WHITE SCOTCH-BRITE™ PADS.

The 3M #61-5001-8796-0 (UPC #048011-33012-9) white “scotch-brite™” 6 inch x 12 inch cleaning pads (NSN 6850-01- 496-4901) with impregnated rubber particles are still an acceptable alternative to melamine pads per TO 1-1-691, Table A-2, Index 39. The 3M #61-5001-8697-0 (UPC #048011-33274-1) white “scotch-brite™ ” 6 inch x 12 inch cleaning pads per NSN 7920-01-519-4736 are the same as NSN 6850-01-496-4901.

2.5 CONFORMABLE PAD HOLDER.

Both the melamine and “scotch-brite™” pads can be used with the 61-5000-3235-6 3M #261 Conformable (Curved) Application Heads per NSN 6850-01-499-5307 (UPC #048011-05717-0).

Table 2-1. Aircraft Wash Cleaning Pads

Item Name Part Number Qty NSN 1 Melamine Formaldehyde

Cleaning Pad Various Vendors approved per

NSN

6 6850-01-525-7684

(3.5 inch x 5 inch x 1 inch) 200 7920-01-526-9015

(3.5 inch x 5 inch x 1 inch) 100 7920-01-526-9007

(4.6 inch x 10 inch x 1 inch) 10 7920-01-527-0128

(4.6 inch x 10 inch x 1 inch)

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Table 2-1. Aircraft Wash Cleaning Pads - Continued

Item Name Part Number Qty NSN 50 7920-01-526-9003

(6 inch x 12 inch x 1 inch) 2 White Scotch-Brite™ Clean-ing Pad with Impregnated Rubber Particles

PN 61-5001-8695-4 50 7920-01-519-4141

UPC Number 048011-33272-7 (3.5 inch x 5 inch x 1 inch)

PN 61-5001-8696-2 50 7920-01-519-4733

UPC Number 048011-33273-4 (4.6 inch x 10 inch x 1 inch)

PN 61-5001-8697-0 50 7920-01-519-4736

UPC Number 048011-33274-1 (6 inch x 12 inch x 1 inch)

3 Cleaning Pad Holder #961 (3 inch x 5 inch)

PN 61-5000-4615-8 1 7920-01-519-4140

UPC Number 048011-09493

4 Flat Cleaning Pad Holder #250 (4 inch x 9 inch)

PN 61-5000-4913-7 5 7920-01-519-4142

UPC Number 048011-12929-7

5 Curved Cleaning Pad Holder #261 (6 inch x 12 inch)

PN 61-5000-3235-6 1 7920-01-519-4735

UPC Number 048011-05717-0

2-2

CHAPTER 3

AIRCRAFT WASH COVERS, TOOLING, FIXTURES, AND EQUIPMENT

3.1 PURPOSE.

The purpose of this chapter is to provide instructions on wash covers, tooling, fixtures and equipment used on the aircraft.

3.2 WASH OPERATIONS REQUIREMENTS.

Aircraft wash operations require the use of covers and masking materials as provided in Table 3-1, and support fixtures and equipment listed in Table 3-2.

NOTE

The use of foam generating cleaning units are recommended for application of cleaning compounds. The foam units enhance the ability of cleaning compounds to cling to vertical surfaces and allow the operator to adjust the foam wetness to satisfy all application requirements.

Table 3-1. Aircraft Wash Covers and Masking Materials

Item Name Qty Part Number NSN (Masking foil and tape may be used in lieu of covers)

1 Wheel Cover, NLG and MLG

28 LG222 L&G Technology 2EA Wheel Cover #5/17 Macon, GA 30252

LG222A

8EA Wheel Cover #9, 11, 13, 15, 21, 23, 25, 27

LG222B

8EA Wheel Cover #10, 12 14, 16, 22, 24, 26, 28

LG222C

2EA Wheel Cover #7, 19

LG22D

2EA Wheel Cover #6, 18

LG22E

2EA Wheel Cover #8, 20

LG223A

2EA Wheel Cover #2, 3

LG223B

2EA Wheel Cover #1, 4

2 Crosshead Cover, MLG

4 LG221A L&G Technology 2EA Rear G LHS Macon, GA 30252

LG221B

2EA Rear G RHS

3 Drag Strut Cover, MLG

4 C5MLGC First State Manufacturing, Inc.

Milford, DE 19963

4 APU Exhaust Cover 1 102086-101A 1730-00-460-0371 (4P94325-101A)

5 APU Exhaust Cover 1 102086-102A 1730-00-460-0370 (4P94325-102A)

3-1

Table 3-1. Aircraft Wash Covers and Masking Materials - Continued

Item Name Qty Part Number NSN 6 ATM Exhaust Cover 2 102141-101A 1730-00-439-3259

(4P94758-101A) 7 Pitot Tube Cover 4 4E76025-101A 1730-00-105-4445 8 Ram Air Inlet Cover 2 4A05001-101A 1730-00-811-3041 9 Masking Tape Up to

200 °F 3 3M #8979N “Red” Tape, 3-inch width Not Available

10 Masking Tape -65 °F to 300 °F

3 3M #425 “Aluminum Foil” Tape, 3- inch width

Not Available

11 Masking Foil Water/ Vapor Proof, Flex-ible

1 MIL-PRF-131, Class 1 8135-00-282-0565

12 Cover, Screw 2 LG224 L&G Technology 2EA Screw Macon, GA 30252

Table 3-2. Aircraft Wash Support Fixture and Equipment

Item Name Qty Part Number NSN (This list provides equipment that is beneficial, but not required)

1 Visor Pogo Fixture 2 4S80067-101A 4920-00-499-5421 2 40 degree Fan Spray Twist

Nozzles for Landing Gear

3 5/8 inch or 3/4 inch Maximum Diameter Hose for Landing Gear

4 1 inch Maximum Diameter Hose for Cargo Compartment

4 Portable Foam Generating Clean-ing Unit

1 15 gallon or 45 gallon ca-pacity

TO 1-1-691, Table B-2

5 Truck-mounted service platform to reach horizontal stabilizer

6 Portable Pneumatic Vacuum (Wet or Dry Pickup)

1 55 Gallon Size 2 inch Vacuum Hose Air Flow of 73 to 97 cfm

Vacuum Pressure of at least 117 inches H 2O Nortech Compressed

Air Type Units d of (PN N551BC)

7 Portable Electric Vacuum (Wet/ Dry)

1 Wet/Dry Vacuum Local Purchase

8 Portable Hydraulic Test Stand 1 MJ-2A (Diesel/Dual Sys-tem) MK-3 (Electric/

Dual System)

Diesel 4920-01-056- 4390 Electric 4920-

00-528-8780 9 Floodlights Trailer Mounted 2 FL-1D 6230-01-527-0631

3-2

CHAPTER 4

AIRCRAFT WASH REQUIREMENTS (SCHEDULED)

4.1 PURPOSE.

The purpose of this chapter is to provide scheduled wash requirements. The areas discussed in this chapter must be washed as directed during every scheduled wash cycles, prior to every Minor/Major Isochronal (ISO) inspections, and prior to refurbishments.

4.2 SCHEDULED WASH MAINTENANCE.

To avoid electrical shock, water hoses may be used only when power is not applied to the aircraft. Aircraft ground power can be restored to hand clean and vacuum interior upper decks, but only after cleaning is completed in the following areas. Failure to comply could result in injury to, or death of, personnel or long term health hazards.

• Cargo Compartment

• Wheel Wells and Landing Gear

• Cargo Underfloor

• Fuselage Exterior within 10 feet of ground receptacle

4.3 COMPLETE EXTERIOR WASH.

Service consists of cleaning the entire exterior of the aircraft, including top of fuselage, top of wings, T-tail, pylons, flaps, flap wells, slats, spoilers, wheel wells, landing gear doors, main landing gear pods, and compartments accessible by quick disconnect fasteners. This service also includes the landing gear assemblies, wheels, and any components within the speci-fied work areas, not specifically identified herein.

4.3.1 High Pressure Equipment. Wheels, brakes, axles, bogie beam assemblies, and landing gear strut components will not be cleaned using high pressure cleaning equipment.Leading edge actuators shall not be washed. No direct spray on slat actuators or moving island actuators. Actuators shall be wiped clean with a cloth dampened with A-A-59601 or MIL-PRF- 680, Type II, III, or IV, degreasing solvent.

4.3.2 Designated Areas for Parts. All equipment removed from the aircraft for the wash (i.e. hatches, access panels, cargo floor roller channels) will be placed in designated areas within the wash rack and cleaned.

4.4 COMPLETE CARGO COMPARTMENT WASH.

4.4.1 Pressurized Water. Service consists of using pressurized water, soap and solvents to clean floors, roller tracks, winch wells, chine area, tie-downs, and inner surfaces of cargo doors.

4.4.2 Non-Pressurized Water. Service consists of using non-pressurized water and solvents to clean walls, insulation, trim panels, and hydraulic service centers.

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4.5 CARGO UNDERFLOOR (BILGE) WASH.

Cargo compartment underfloor/bilge areas are classified as confined spaces per TO 1C-5M-2-1, Chapter 1. Per-sonnel must comply with all regulations for confined spaces per AFI 21-101. Personnel must wear appropriate protective clothing and equipment during the cleaning and Corrosion Preventive Compound (CPC) application process, along with posting an observer prior to entering underfloor area. Refer to AFOSH STD 91-25, AFOSH STD 48-17, TO 1-1-8, and TO 1-1-3 and your local bioenvironmental engineer for necessary protective clothing and equipment. Failure to comply could result in injury to, or death of, personnel or long term health hazards.

Service consists of cleaning interior of under floor area (forward and aft bilges and in wheel-well pods), extending upward on both sides of the fuselage to the cargo compartment floor. Access to this area is gained through removal of panels at the forward and aft ends of the MLG wheel wells and bilge hatches on C-5M.

4.6 CREW COMPARTMENT INTERIOR CLEANING.

Service consists of cleaning the interior of the forward upper deck, which includes the flight deck, bunk rooms, avionics compartments, relief crew compartment, courier compartment, lavatory, galley (including sink and oven), baggage compart-ments, coat closet, and electro-environmental/boiler room. Cleaning will include ceilings, walls, floors, windows, drawers, storage areas, inner compartments, and all other areas within the interior. Trash containers will be emptied. Vacuum and clean for the purposes of removing all dirt and other particles from floors, ladders, recessed areas, and all other areas where dirt can collect.

4.7 TROOP COMPARTMENT INTERIOR CLEANING.

Service consists of cleaning the interior of the aft upper deck, which includes the troop compartment, lavatory, galley (including sink and oven), coat closet, baggage compartments, and all other areas within the troop interior. Cleaning will include ceilings, walls, floors, windows, drawers, storage areas, inner compartments, and all other areas within the interior.

Trash containers will be emptied. Vacuum and clean for the purposes of removing all dirt and other particles from floors, ladders, recessed areas, and all other areas where dirt can collect.

4.8 CARGO COMPARTMENT INTERIOR CLEANING.

4.8.1 Water Hose. Water hoses are not used to clean the interior of the aircraft during this type of cleaning. This cleaning process should not be used in lieu of a complete cargo compartment wash.

4.8.2 Services. Service consists of cleaning bulkheads, walls, floors, chine area, insulation, trim panels, ladder surfaces, rail assemblies, entrance areas, rail coves, winch wells, cat walks and all other areas within the cargo compartment. Ensure chemicals and water do not run, flow, or leak through cracks, crevices and holes in the floor, under bulkheads, and into electrical components.

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CHAPTER 5

AIRCRAFT WASH OPTIONS (UNSCHEDULED)

5.1 PURPOSE.

The purpose of this chapter is to provide instructions on unscheduled wash maintenance.

5.2 TYPES OF WASHING.

The following wash types may be performed, as required, between complete exterior/interior washes but can never be used in lieu of complete washes performed at scheduled wash cycles contained in Chapter 4.

NOTE

• Unscheduled washes are not usually performed in wash rack. If hot water is unavailable, regular tap water may be used for rinsing.

• When airplane exterior surfaces require washing outside in temperatures below 32 °F, cleaning of a few square feet can be done by wiping surface with a cloth or pad saturated with A-A-59601 or MIL-PRF-680, Type II or IV, degreasing solvent followed by a clean-up cloth.

5.2.1 Half Wash.

a. Half wash covers bottom half of aircraft exterior and can be performed as needed, between complete exterior wash-ings.

b. Service consists of cleaning the bottom half of the aircraft fuselage below WL258. Half wash also includes the petal doors, center cargo door, tail cone, wing lower surfaces, flap wells, pylons, nacelles, interior of the wheel wells, interior of the landing gear doors, interior of the main landing gear pods, and landing gear assemblies.

5.2.2 Mission Readiness Wash. Service consists of washing and cleaning the entire exterior fuselage belly region from the cargo floor level down, and from the front of the nose radome to the aft loading ramp forward hinge. Service also includes washing and cleaning the exterior of the Nose Landing Gear (NLG) doors, outboard Main Landing Gear (MLG) doors, MLG pods, side doors, complete center door, dove tail area, forward and aft loading ramps, wheels, tail cone, and both sides of the vertical stabilizer, including the rudder and horizontal stabilizer.

5.2.3 Clear Water Rinse.

a. Clear water rinse can be performed as needed per TO 1-1-691, between complete exterior washings, and covers all exterior surfaces.

b. Covers, plugs, and masking are not necessary for clear water rinsing.

c. Service consists of complete and thorough rinsing and flushing of the entire exterior of the aircraft with clean water until all accumulated contaminants are removed. The use of brushes and cleaning solutions are not required as this service is solely a rinsing operation for the purpose of diluting and flushing away the accumulation of salt, dirt, and other water soluble products. Do not direct water at openings normally masked during regular wash or at joints where lubricants could be removed. Keep water nozzle at least 10 feet away from the surface being rinsed.

d. Water directed at close range may remove lubricants from joints during clear water rinse. Avoid direct spray into openings and surfaces immediately adjacent to openings, which are normally masked during regular washes. Keep water nozzle at least 10 feet away from the surface being rinsed. Position the water stream at a contact angle of 45 degrees or less to minimize the impact pressure.

5-1

5.2.4 Spot Wash.

NOTE

Waterless wipe down procedures for spot cleaning will be used only when water is not available for rinsing, or when cold weather prevents the use of water. The waterless wipe down method for removal of soils and corrosive salt residues is provided in TO 1-1-691, Chapter 3.

Service consists of localized cleaning of an area not to exceed 200 square feet. The spot wash allows for cleaning of areas discolored by soil, heavy buildup of carbon or oil, paint touch up, maintenance activities, etc. Examples of areas to be spot washed are wheels, aircraft components, equipment on or off the aircraft, exhaust deposits, beverage spills, lavatory drainage stains, residue from discharge of fire extinguisher chemicals, hydraulic leaks, and panels or components for non-destructive inspection (NDI) purposes.

5.2.5 Volcanic Ash Removal. The primary concern in removing volcanic ash is the extreme abrasiveness of the ash. It is not a significantly corrosive material. Aircraft which have been exposed to volcanic ash must be cleaned using the following procedures prior to further operation of systems.

a. All static ports, fuel vents, engine inlets, air conditioning inlets, etc., should be vacuumed to remove as much ash as possible and then suitably covered to preclude additional ash entry, if applicable. Special emphasis should be placed on ducting supplying cooling air to avionics, electronics, and electrical equipment.

NOTE

Caution should be taken when washing to avoid vigorous rubbing/scrubbing, since ash is even more abrasive when combined with water to form a slurry.

b. Wash entire exterior of aircraft per enclosed procedures. Ensure that covers are placed over wheels and MLG cross-head prior to washing to limit ash accumulation on gear. Wheel wells, NLG, MLG, and compartments accessible by quick disconnect fasteners are excluded. NLG and MLG only need to be clear water rinsed after exterior wash is completed such as to remove any ash that may have drained onto gear during exterior wash.

c. Check windshield wiper blades to ensure that all contaminants are removed prior to operation.

d. If ash penetration is evident in the aircraft interior (crew or troop compartment, cargo compartment, cargo underfloor, or other accessible interior areas) they should be cleaned and thoroughly vacuumed per enclosed procedures.

e. Perform post wash inspection.

f. Perform post wash lubrication. Ensure that unpainted surfaces such as flap, slat, NLG, and MLG screws, flap tracks, and exposed hydraulic actuators are hand wiped with soft cloth thoroughly moistened with MIL-PRF-83282 hydraulic fluid. Again, caution should be taken when wiping to avoid vigorous rubbing/scrubbing, since ash is even more abrasive when combined with water to form a slurry.

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CHAPTER 6

AIRCRAFT WASH CONTRACTOR

6.1 PERSONNEL RESPONSIBILITY.

The wing corrosion manager and owning unit supervisors/managers must ensure that aircraft wash contractor personnel accomplish the following tasks prior to aircraft wash operations.

a. Train and qualify personnel on aircraft washing and cleaning.

b. Training must be completed once during the initial wash training process and whenever technical data, work processes (i.e. foamers, sprayers), equipment, materials, or conditions change.

c. Personnel assigned as wash supervisors, cleanliness inspectors, aircraft wash personnel, and wash contractor quality assurance representatives must complete the Aircraft Wash Procedures video (PIN #613890). Video is downloadable from AFIRM database https://c5.robins.af.mil/afirm/afirm.asp then select tabs as follow: ASIP/Corrosion/Training Vid-eos/AC Wash Procedures.

d. Ensure AMC Form 1017 or AFRC IMT 163, Aircraft Wash Supervisor’s and Employee’s Certification, has been completed by all wash personnel prior to each aircraft wash.

e. Site manager should have previous aircraft maintenance experience.

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CHAPTER 7

AIRCRAFT WASH PROCEDURES

7.1 WASH SITE PREPARATION.

a. Quality Assurance shall appoint a qualified Quality Assurance Representative (QAR) to ensure that aircraft wash is performed in accordance with enclosed procedures, TO 1C-5M-23, TO 1-1-691.

b. Inspect wash rack facility to remove any foreign objects and debris.

c. Obtain and inspect all aircraft wash support equipment, stands, and platforms to verify it is in proper working condition and can be safely operated in accordance with technical data.

d. Ensure all high reach vehicles used during washes is rated for use in winds up to 25 knots.

e. Obtain all required personnel restraint equipment that must be worn whenever personnel are on aircraft upper surfaces.

Usage and aircraft attachment instructions are provided in TO 1C-5M-2-1, Chapter 1.

f. Verify that hot water (120 °F to 140 °F/49 °C to 60 °C) is available for rinsing during aircraft washing operations. Hot water must be used, as it provides much more efficient rinsing and is known to reduce man-hours for aircraft washing operations by approximately 20%.

g. Record water supply pressure to ensure maximum pressure is not exceeded while…