Attachment 3 - TO 13F4-4-131.pdf

TO 13F4-4-131

TECHNICAL MANUAL

OPERATION, SERVICE AND MAINTENANCE

WITH

ILLUSTRATED PARTS BREAKDOWN

FIRE EXTINGUISHER, AIRCRAFT, HAND PORTABLE,

HALON 1211, 5 LB CAPACITY

PN FE 355T, PN B355T AND

PN 16155-BOTTLE

NSN 4210-01-500-4363, NSN 6830-01-128-1673

AMEREX CORPORATION

FSCM 54905

F09603-92-C-1279

This manual supersedes TO 13F4-4-131 dated 22 August 2019.

DISCLOSURE NOTICE - This information is furnished upon the condition that it will not be released to another nation without the specific authority of the Department of the Air Force of the United States, that it will be used for military purposes only, that individual or corporate rights originating in the information, whether patented or not, will be respected, that the recipient will report promptly to the United States, any known or suspected compromise, and that the information will be provided substantially the same degree of security afforded it by the Department of Defense of the United States. Also, regardless of any other markings on the document, it will not be downgraded or declassified without written approval of the originating United States agency.

DISTRIBUTION STATEMENT C - Distribution authorized to U.S. Government Agencies and their contractors (Administrative or Operational Use, Export Controlled) (22 August 2019). Other requests for this document shall be referred to 406 SCMS/GUEE, Robins AFB, GA 31098.

Questions concerning technical content shall be referred to AFLCMC/WNZ.

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

29 OCTOBER 2019

Dates of issue for original and changed pages are:

Original. . . . . . . .0. . . . .29 October 2019

TOTAL NUMBER OF PAGES IN THIS PUBLICATION IS 46, CONSISTING OF THE FOLLOWING:

Page *Change No. No.

Page *Change No. No.

Page *Change No. No.

Title A i - iii iv Blank v - vii viii Blank ix - x 1-1 - 1-2 2-1 2-2 Blank 3-1 - 3-2 4-1 4-2 Blank 5-1 - 5-8 6-1 - 6-5 6-6 Blank 7-1 - 7-11 7-12 Blank

TO 13F4-4-131

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 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . iii

LIST OF TABLES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . iii

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

SAFETY SUMMARY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ix

1 GENERAL INFORMATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1

1.1 EXTINGUISHING AGENT. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1

1.1.1 The Extinguishing Agent . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1

1.1.2 Halon 1211, Clean . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1

1.1.3 Halon 1211 Extinguishes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1

1.1.4 Halon 1211, Low Level. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1

1.1.5 Physical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1

2 SPECIAL TOOLS AND TEST EQUIPMENT. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1

2.1 Special Tools and Test Equipment. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1

3 PREPARATION FOR USE AND RESHIPMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1

3.1 UNPACKING AND HANDLING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1

3.1.1 New Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1

3.1.2 Used Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1

3.2 PREPARATION FOR OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1

3.2.1 Ready for Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1

3.2.2 Inspect . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1

3.2.3 Fire Extinguisher . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1

3.3 SHIPMENT. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1

3.4 STORAGE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1

4 OPERATION INSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1

4.1 OPERATION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1

4.2 POST FIRE OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1

4.2.1 Recharge. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1

5 INSPECTION AND MAINTENANCE INSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1

5.1 GENERAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1

5.2 INSPECTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1

5.3 SERVICE MAINTENANCE (AGENT REMOVAL IS NOT REQUIRED) . . . . . . . . . . . . . . 5-1

5.3.1 Service Maintenance. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1

5.4 COMPLETE MAINTENANCE (SIX YEAR TEARDOWN WHICH REQUIRES REMOVAL

OF AGENT) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2

5.4.1 Every Six Years . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2

5.4.2 Maintenance Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2

5.5 RECHARGE INSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-4

5.5.1 Recharging . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-4

5.5.2 Recharge Procedures. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-4 i

Chapter Page

5.6 TROUBLESHOOTING GUIDE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-6

6 DIAGRAMS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1

6.1 GENERAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1

6.2 ARRANGEMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1

7 ILLUSTRATED PARTS BREAKDOWN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-1

SECTION I INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-1

7.1 INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-1

7.2 MODELS COVERED. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-1

7.3 FINDING PART NUMBERS, ILLUSTRATION, DESCRIPTION . . . . . . . . . . . . . . . . . . . . 7-1

7.4 SIMILAR ASSEMBLIES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-1

7.5 SHEET NUMBER EXPLANATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-1

7.6 UOC(S) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-1

7.7 SOURCE, MAINTENANCE, AND RECOVERABILITY (SMR) CODES . . . . . . . . . . . . . . 7-1

7.8 PARTS STANDARDIZATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-2

7.9 MANUFACTURER’S LIST. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-2

7.10 MAINTENANCE PARTS LIST (MPL) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-2

7.10.1 Figure and Index Number Column . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-2

7.10.2 Part Number Column . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-2

7.10.2.1 Commercial Hardware . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-2

7.10.2.2 Parts Not Illustrated . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-2

7.10.2.3 Markings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-2

7.10.2.4 Government Furnished Equipment (GFE) and Contractor Furnished Equipment (CFE) Covered by Separate Manuals. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-2

7.10.3 CAGE Column . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-2

7.10.4 Description Column . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-2

7.10.4.1 Indentation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-3

7.10.5 Units Per Assembly (UPA) Column. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-3

7.10.6 UOC Column . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-3

7.10.7 SMR Code Column . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-3

7.11 NUMERICAL INDEX (NI) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-3

7.11.1 Part Number Column . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-3

7.11.2 Figure and Index Number Column . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-3

7.12 REFERENCE DESIGNATION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-3

7.12.1 Reference Designator Column . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-3

7.12.2 Figure and Index Number Column . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-4

SECTION II MAINTENANCE PARTS LIST . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-7

TO 13F4-4-131

TABLE OF CONTENTS - CONTINUED

ii

LIST OF ILLUSTRATIONS

Number PageTitle

3-1 Pressure vs Temperature Chart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2 5-1 Recharging Extinguisher . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-8 6-1 Bracket Assembly (Original Configuration) PN 04864 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-2 6-2 Bracket Assembly PN 07495 (New Configuration). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-3 6-3 Fire Extinguisher (Typical). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-4 6-4 Protector Valve Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-5 7-1 Five Pound Halon 1211 Aircraft Fire Extinguisher . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-8 7-2 Pull Pin and Lanyard Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-10

LIST OF TABLES

Number PageTitle

1-1 Halon 1211 Physical Properties. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2 5-1 Troubleshooting Guide . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-6 iii/(iv blank)

INTRODUCTION

1 PURPOSE.

The purpose of this manual is to provide operation and maintenance personnel with information necessary to operate, service, maintain and repair the five pound Portable, Halon 1211 Aircraft Fire Extinguisher, Part Number (PN) FE 355T, PN B355T and PN 16155-BOTTLE. This unit is manufactured by Amerex Corporation, P.O. Box 81, Trussville, Alabama 35173. This extinguisher is intended for use on board aircraft where a clean, non-corrosive agent is needed to prevent contamination and residue.

2 SCOPE.

This manual contains seven chapters.

Chapter 1 General Information Chapter 2 Special Tools and Test Equipment Chapter 3 Preparation for Use and Reshipment Chapter 4 Operation Instructions Chapter 5 Inspection and Maintenance Instructions Chapter 6 Diagrams Chapter 7 Illustrated Parts Breakdown

3 SYMBOLS.

- A dash (-) before an index number denotes a part which is not illustrated.

* An asterisk (*) flush right of the part number denotes a marking that is to be requisitioned in accor-dance with DODI 5330.03_AFI 33-395.

# A number sign (#) flush right of a part number indicates that detail parts are listed in a separate manual.

F The letter “F” before the figure number means “follows” and is used when an assembly or part has not been assigned an index number, and the figure and index number of the preceding part has been used.

4 ABBREVIATIONS.

All abbreviations used in this manual are shown in the list of abbreviations below. Standard abbreviations are in accordance with ASME Y14.38, Abbreviations and Acronyms for Use on Drawings and Related Documents.

°C Degree Celsuis °F Degree Fahrenheit AF Air Force AFTO Air Force Technical Order ALT Alternate AP Attaching Parts AR As Required CAGE Commercial and Government Entity CFE Contractor Furnished Equipment DLA Defense Logistics Agency DoD Department of Defense ESDS Electrostatic Discharge Sensitive ETIMS Enhanced Technical Information Management System GFE Government Furnished Equipment HAZMAT Hazardous Material HCI Hardness Critical Items v

I&S Interchangeability and Substitution IPB Illustrated Parts Breakdown MPL Maintenance Parts List NFPA National Fire Protection Association NHA Next Higher Assembly NI Numerical Index No. Number OSHA Occupational Safety and Health Administration PN Part Number PSI Pound-force per Square Inch PSIG Pound-force per Square Inch, Gauge RDI Reference Designator Index REF Reference SDS Safety Data Sheet SMR Source, Maintenance, and Recoverability TCTO Time Compliance Technical Order TO Technical Order UOC Usable on Code UPA Units Per Assembly

5 RELATED PUBLICATIONS.

NOTE

When searching Technical Order (TO) numbers in the Enhanced Technical Information Management System (ETIMS) catalog, please use the wildcard (*) after typing in the TO number. Many TOs are not available in paper format, (i.e., digital (WA-1) or Compact Disk (CD-1)). This ensures TOs in all media formats will populate the search.

The following publications contain information in support of this technical manual.

List of Related Publications

Number Title ASME Y14.38 Abbreviations and Acronyms for Use on Drawings and Related Documents DODI 5330.03_AFI 33-395 Defense Logistics Agency (DLA) Document Services TO 00-5-1 AF Technical Order System TO 00-25-195 Source, Maintenance, and Recoverability Coding of Air Force Weapons, Systems, and

Equipment TO 00-25-234 General Shop Practice Requirements for the Repair, Maintenance, and Test of Electri-cal Equipment

6 RECORD OF APPLICABLE TIME COMPLIANCE TECHNICAL ORDERS (TCTOS).

List of Time Compliance Technical Orders

TCTO

Number

TCTO

Title

TCTO

Date

None vi

7 HARDNESS CRITICAL ITEMS (HCI).

The HCI symbol ( ) establishes special requirements limiting changes and substitutions and that the specific parts listed must be used to ensure hardness is not degraded.

If included, items with nuclear survivability requirements are marked with the HCI symbol ( ). All changes to, or proposed substitutions of, HCIs must be approved by the acquiring activity.

8 ELECTROSTATIC DISCHARGE SENSITIVE (ESDS) ITEMS.

All ESDS parts shall be handled in accordance with the ESDS device handling procedures in TO 00-25-234.

If included, items containing ESDS parts are marked with the ESDS symbol ( ).

9 IMPROVEMENT REPORTS.

Recommended changes to this manual shall be submitted in accordance with TO 00-5-1.

vii/(viii blank)

SAFETY SUMMARY

1 GENERAL SAFETY INSTRUCTIONS.

This manual describes physical and/or 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 specific task, the WARNINGs, CAUTIONs, and NOTEs included in that task shall be reviewed and under-stood.

2 WARNINGS, CAUTIONS, AND NOTES.

WARNINGs and CAUTIONs are used in this manual to highlight operating or maintenance procedures, practices, condi-tions, 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), a statement of the hazard, minimum precautions, and possible results if disregarded. NOTEs are used in this manual to highlight operating or maintenance 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:

Highlights an essential operating or maintenance procedure, practice, condition, statement, etc. Failure to comply 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. Failure to comply could result in damage to, or destruction of, equipment or loss of mission effectiveness.

NOTE

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

3 HAZARDOUS MATERIALS (HAZMAT) WARNINGS.

HAZMAT Warnings are provided through use of the following Hazard Symbols. Consult the HAZMAT DESCRIPTION or Safety Data Sheet (SDS) (formerly MSDS) (Occupational Safety and Health Administration (OSHA) Form 20 or equivalent) for specific information on hazards, effects, and protective equipment requirements. MSDS and SDS may be used inter-changeably. If you do not have an SDS for the material involved, contact your supervisor, or the base Safety or Bioenvi-ronmental Engineering Offices.

3.1 HAZMAT Icons. The following icons are used throughout Air Force technical manuals to indicate the use of HAZMAT:

The symbol of a human figure in a cloud shows that the material gives off vapors that are a danger to life or health.

The symbol of a person wearing goggles shows that the material will injure eyes.

ix

The symbol of a liquid entering the mouth shows that eating or drinking this material can cause a health hazard.

The hand symbol shows a material that can irritate the skin or enter the body through the skin and cause a health hazard.

3.2 HAZMAT Description. The following detailed HAZMAT warnings pertain to materials or substances used in connec-tion with procedures called out or described in this technical manual. Use these advisory warnings and their associated precautions in conjunction with the current SDS for each material or substance. If there is conflict between this safety summary and the SDS, the SDS takes precedence.

ALKALINE WATER BASE CLEANING COMPOUND, MIL-PRF-87937 1

Liquid alkaline cleaner is an eye, skin and respiratory irritant. Ingestion may cause digestive tract irritation. Do not ingest.

Appropriate skin and eye protection must be worn.

x

CHAPTER 1

GENERAL INFORMATION

1.1 EXTINGUISHING AGENT.

1.1.1 The Extinguishing Agent. The extinguishing agent Halon 1211 (BCF) is a halogenated hydrocarbon chemically identified as bromochlorodifluoromethane. Its chemical symbol is CBr2C1F2. Halon 1211 is a colorless, faintly sweet-smelling, electrically nonconductive gas. At ambient conditions its approximate boiling point is 25 Degree Fahrenheit (°F) (-3.4 Degree Celsius (°C)) and its freezing point is -256 °F (-160 °F). Halon 1211 gas is liquified by its own vapor pressure when in a closed container.

1.1.2 Halon 1211, Clean. Halon 1211 is a clean, multi-purpose fire fighting agent, effective for Class A, B and C fires.

Class A fires are fires in ordinary combustible materials such as paper, cloth, wood, trash, rubber, and many plastics. Class B fires are fires in flammable liquids, grease, oil, tar, oil base paint, lacquers, and flammable gases. Class C fires are fires in live electrical equipment.

NOTE

Certain small extinguishers (including this five pound unit) charged with multi-purpose Halon 1211 are rated for only Class B and C fires. These small units have insufficient effectiveness to earn the Underwriters Laboratories minimum Class A rating even though they have value in extinguishing smaller Class A fires.

1.1.3 Halon 1211 Extinguishes. Halon 1211 extinguishes by chemically interrupting the fires chain reaction, the con-tinuing combination of oxygen, fuel and heat. Discharged as an 85 percent liquid/15 percent vapor stream, Halon 1211 offers long discharge range, which helps the operator to stay at a safe distance while fighting a fire. The liquid/ vapor discharge allows Halon 1211 to flow around obstructions when extinguishing tough-to-reach fires.

1.1.4 Halon 1211, Low Level. Halon 1211 has a low level of toxicity. It has been approved for use in portable fire extinguishers by Underwriters Laboratories in Standard No. 1093 and in local applications by National Fire Protection Association (NFPA) in Standard Number (No.) 12B. The Federal Aviation Administration Advisory Circular 20-42B also recommends the use of Halon 1211 portables on commercial aircraft. The approves the use of Halon 1211 for aircraft use.

1.1.5 Physical characteristics.

Although Halon 1211 vapor has a low toxicity, its decomposition products can be hazardous. On decomposition, Halon 1211 has a characteristic sharp, acrid odor, even in concentrations of only a few parts per million. The odor provides a built-in warning system for the agent and at the same time creates a noxious irritating atmosphere for those who are in the hazard area during and following a fire. Leave and/or ventilate the area after fighting the fire.

Failure to comply could result in injury to, or death of, personnel or long term health hazards.

Physical characteristics of Halon 1211 are indicated in Table 1-1.

NOTE

The extinguisher comes with a label that reads “Warning: The concentrated agent when applied to fire can produce toxic by-products. Avoid inhalation of these materials by evacuating and ventilating the area. Do not use in confined spaces less than 624 cubic feet per extinguisher.” This extinguisher is used in applications other than aircraft such as in buildings and boats. The statement applies to situations where there are no means of ventilation.

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Table 1-1. Halon 1211 Physical Properties

Physical Property Characteristic Formula CBrC1F2

Boiling Point 25 °F (-3.4 °C) Freezing Point -256 °F (-160°) Liquid Density 114 lb/ft3 (1830 kg/m3) at 68 °F (20 °C) Vapor Pressure 19.6 Pound-force per Square Inch, Gauge (PSIG) at 68 °F

(20 °C) Specification MIL-DTL-38741

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CHAPTER 2

SPECIAL TOOLS AND TEST EQUIPMENT

2.1 SPECIAL TOOLS AND TEST EQUIPMENT.

No Special Tools or Test Equipment required.

2-1/(2-2 blank)

CHAPTER 3

PREPARATION FOR USE AND RESHIPMENT

3.1 UNPACKING AND HANDLING.

3.1.1 New Unit. A new five pound, portable, liquified gas fire extinguisher will be received as a completely assembled, fully charged and pressurized unit. Special unpacking procedures are not required except for the normal precautions used when handling pressurized equipment. Take care not to drop the unit as damage may occur.

3.1.2 Used Unit. The fire extinguisher will be received as a completely assembled, empty or partially filled and pressur-ized unit. If the unit is packaged, unpacking and handling procedures are the same as for a new unit.

3.2 PREPARATION FOR OPERATION.

3.2.1 Ready for Operation. New units are ready for operation on receipt, but should be inspected as follows. Visually check the unit to ensure it is not physically damaged and that the nozzle is free of any obstructions. Prior to placing the extinguisher in service, ensure that the pull pin is secured to the extinguisher. Refer to Chapter 5.

3.2.2 Inspect. Visually inspect the pressure gauge to see that it registers in the green zone, 125±50 Pound-force per Square Inch, Gauge (PSIG). Temperature of extinguisher can affect pressure gauge readings. Nominal “properly charged” marking on the gauge is correct for the 70 Degree Fahrenheit (°F) (21 Degree Celsuis (°C)) and it is best to check the pressure at that temperature. Generally, as temperature goes up, the gauge reading goes up and conversly, low temperature results in a lower gauge reading. The relative pressure gauge vs temperature readings for the Amerex five pound Halon extinguisher are as follows:

Temperature °F -40 °F 70 °F 120 °F Temperature °C -40 °C 21 °C 49 °C Pressure Gauge PSIG 75 125 185(Refer to Figure 3-1 for other temperatures.)

3.2.3 Fire Extinguisher. The fire extinguisher is designed to withstand environmental exposure; therefore, the unit should be mounted in convenient, easily seen location.

3.3 SHIPMENT.

Apply a green NON-FLAMMABLE gas decal to shipping container when shipping a charge extinguisher.

3.4 STORAGE.

The fire extinguisher is built to withstand exposed environmental conditions. Store unit in convenient, clean, accessible location.

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Figure 3-1. Pressure vs Temperature Chart

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CHAPTER 4

OPERATION INSTRUCTIONS

4.1 OPERATION.

Position fire extinguisher vertically and about 8 feet (3 meters) from the fire. Remove pull-ring pin. Aim nozzle at the base of the fire. Squeeze the lever and sweep the agent across the base of the fire using a side to side motion until fire is extinguished.

4.2 POST FIRE OPERATION.

Halon 1211 evaporates rapidly. Therefore no cleanup is required unless moisture or a high temperature was present at the area of application. However ventilation should always be provided to remove the vapors. If moisture or a high temperature was present, use the following clean-up procedures:

a. After fire has been extinguished, purge area and surface with clean dry air (dust free low moisture content compressed air).

ALKALINE WATER BASE CLEANING COMPOUND, MIL-PRF-87937 1

b. Wash contaminated surface with a ten percent solution of Sodium Bicarbonate, Specification O-S-576 or one part MIL-PRF-87937, Type I to three parts water. Apple solution with a brush or rag. Allow solution to remain on surface until all bubbling stops. Remove solution by wiping with a damp sponge or cloth, rinsing with water.

4.2.1 Recharge. Recharge the extinguisher immediately after use following the instructions in Chapter 5.

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CHAPTER 5

INSPECTION AND MAINTENANCE INSTRUCTIONS

5.1 GENERAL.

The five pound, portable, liquified gas fire extinguisher requires ordinary monthly inspection to ensure reliable operation at all times. Service maintenance should be performed yearly, after any use of the extinguisher, or when visual inspection reveals the need for service. Every six years extinguishers shall be emptied and subjected to the applicable maintenance procedures. When the applicable maintenance procedures are performed during periodic recharging or hydrostatic testing, the six-year requirement shall begin from that date. In addition, the cylinder must be retested in accordance with National Fire Protection Association (NFPA) Standard Number 10 every 12 years. Service maintenance, recharging, and hydrostatic testing shall be performed by trained persons having available the appropriate servicing manual(s), the proper types of tools, recharge materials, lubricants, and manufacturer’s recommended replacement parts. Extinguishers which need service main-tenance, recharging, and/or hydrostatic testing shall be sent to the base Fire Department for necessary action.

5.2 INSPECTION.

INSPECTION is a “quick check” that an extinguisher is available and will operate. It is intended to give reasonable assurance that the extinguisher is fully charged and operable. This is done by seeing that it is in its designated place, that it has not been actuated or tampered with, and that there is no obvious physical damage or condition to prevent operation.

Inspect monthly or at more frequent intervals, if circumstances require. The gauge pressure must be in operable range (125±50 Pound-force per Square Inch, Gauge (PSIG)). Make sure that the nozzle is unobstructed and that pull pin and lock wire seal are in place. Ensure that pull pin is secured to the valve assembly protector. Ensure that operating instructions on nameplate are legible. Examine for obvious physical damage, corrosion, or leakage. Check serviceability tag for next inspection date.

5.3 SERVICE MAINTENANCE (AGENT REMOVAL IS NOT REQUIRED).

At least once a year (or more frequently if indicated by an inspection), MAINTENANCE should be performed. SERVICE MAINTENANCE is a “thorough check” of the extinguisher. It is intended to give maximum assurance that an extinguisher will operate effectively and safely. It includes a thorough examination and any necessary repair or replacement. It will normally reveal the need for hydrostatic testing.

5.3.1 Service Maintenance. Service maintenance procedures are performed as follows:

When cleaning, avoid the use of solvents around the pressure gauge. They could seriously damage the plastic gauge face. Failure to comply could result in damage to, or destruction of, equipment or loss of mission effec-tiveness.

a. Clean extinguisher to remove dirt grease, or foreign material. Inspect the cylinder for corrosion, abrasion, dents, and condition of welded seams. If damage is found, hydrostatically test, using the proof pressure method, in accordance with the Compressed Gas Association Pamphlet C-6 and National Fire Protection Association Pamphlet 10, after completing instructions in the COMPLETE MAINTENANCE section.

b. Check to make sure that the instruction nameplate is securely fastened and legible.

c. Visually inspect extinguisher for missing or substitute parts. Only factory replacement parts are approved for use on Amerex fire extinguishers.

5-1

Safety glasses or a face shield must be worn while charging Halon extinguishers. Failure to comply could result in injury to, or death of, personnel or long term health hazards.

d. Weigh extinguisher. The total charged weight of a full extinguisher (including nozzle) shall be the same as the gross weight that is marked on the label. Recharge extinguisher if weight does not agree. Follow recharge instructions.

e. Check date of manufacture on label, cylinder skirt or crown. The cylinder must be retested in accordance with NFPA-10 every 12 years.

f. Visually inspect the pressure gauge. Depressurize the extinguisher and replace the gauge if bent or damaged. If gauge needle indicates low pressure and the total weight of the extinguisher is correct, check for leaks, repair and repressur-ize. If gauge needle indicates overcharged, depressurize the extinguisher and follow recharge instructions.

g. Extinguishers may have been placed in service without a means to secure the pull pin to the extinguisher. These pull pins should be replaced with a pull pin and lanyard assembly, Part Number (PN) 06100, refer to Figure 7-2. This assembly consists of a pull pin, 16-gauge copper wire inside a plastic sheath, and two copper ferrules. One end of the wire is to be attached to the pull pin; the other end should be wrapped around the valve protector and secured by crimping the ferrule. Inspect pull pin for freedom of movement and ensure that it is properly secured to the protector.

Replace pull pin assembly as necessary.

h. Inspect discharge lever for any dirt or corrosion which might impair freedom of movement. If lever or rivets are damaged or distorted, replace as necessary.

Make sure that cylinder is completely empty before proceeding to disassemble the valve. Failure to comply may result in an explosion of cylinder.

i. Inspect valve assembly for corrosion or damage to threaded connections. Replace valve assembly as necessary. Inspect valve stem assembly. Original valve stems had a polished aluminum finish. Valve stems were changed in mid-1987 to an improved blue anodized material. The improved valve stem can be identified by its blue color. Amerex PN is 06092 for the valve stem assembly (includes valve stem o-ring). Any time extinguishers are disassembled, any of the original polished aluminum stems should be replaced with blue anodized stems. Lightly lubricate the valve stem o-ring with Visilox V-711 (do not lubricate the valve stem seal). Reassemble the spring and downtube. Carefully install a NEW collar o-ring which has been lightly lubricated with Visilox V-711. Follow recharge instructions.

j. Install a new tamper seal and record the service date on the extinguisher tag.

k. Reinstall the extinguisher in the aircraft. Make sure the bracket is in good condition (straps, rivets, and clamps). Some users have experienced deficiencies with the original configuration bracket. A new bracket is available (PN 07495) which has been tested and is approved for aircraft use.

5.4 COMPLETE MAINTENANCE (SIX YEAR TEARDOWN WHICH REQUIRES REMOVAL OF AGENT).

5.4.1 Every Six Years. Every six years, extinguisher shall be emptied and subjected to the applicable maintenance procedures. When the applicable maintenance procedures are performed during periodic recharging or hydrostatic testing, the six year requirement shall begin from that date.

5.4.2 Maintenance Procedures. Complete maintenance procedures are performed as follows:

5-2

Before attempting to devalve the extinguisher (for maintenance or hydrotesting), be sure that it is completely depressurized. Never have any part of your body over the extinguisher while removing the valve assembly. Failure to comply could result in injury to, or death of, personnel or long term health hazards.

Halon 1211 should not be mixed with even the slightest amount of moisture. Prolonged exposure of a devalved cylinder to ambient air should be avoided to prevent moisture contamination. Failure to comply could result in damage to, or destruction of, equipment or loss of mission effectiveness.

NOTE

Halon agent removed from an extinguisher at the time of maintenance or recharging shall be placed in a separate recovery cylinder and the extinguisher cylinder examined internally for contamination. The Halon agent, retained in the recovery cylinder, may be reused only if no evidence or internal contamination is observed in the extin-guisher cylinder. Halon removed from extinguishers that exhibit evidence of internal contamination or corrosion shall be processed in accordance with the extinguisher manufacturer’s instructions.

a. Complete items a, b, c, d, e, f, g and h in Paragraph 5.3.1 Service Maintenance Procedures.

b. Empty the extinguisher of all remaining pressure and Halon 1211.

NOTE

Aluminum valves should be removed by securing the cylinder in a suitable vise and applying a 13/16 inch open end wrench to the front of the valve body, below the lever. Aluminum downtubes should be removed using a 13/16 inch box wrench. Every effort should be made to keep the cylinder opening covered to minimize interior corrosion.

c. Remove valve assembly and disassemble removing collar o-ring, downtube, spring and valve stem assembly. Discard valve stem assembly and collar o-ring.

d. Thoroughly clean all parts of the disassembled valve with a soft bristle brush or soft cloth. Blow the valve out with dry nitrogen.

e. Install a NEW Amerex valve stem assembly after lightly lubricating the valve stem o-ring with Visilox V-711 (do not lubricate the valve stem seal). Note that original valve stems had a polished aluminum finish. Valve stems were changed in mid-1987 to an improved blue anodized material. The improved valve stem can be identified by its blue color. Amerex PN is 06092 for the valve stem assembly (includes valve stem o-ring). Replace valve stem with new blue anodized stems only. Reassemble the spring and downtube. Carefully install a NEW collar o-ring which has been lightly lubricated with Visilox V-711. Set the valve assembly aside.

f. Inspect the cylinder interior following CGA Visual Inspection Standard, Pamphlet C-6.

NOTE

If any moisture is evident or a hydrostatic test has been performed, the cylinder should be immediately warm air dried in the inverted position.

g. Clean the o-ring sealing groove in the cylinder neck. If any rust is evident, remove by using a fine emery cloth (200 grit). Clean the surface and lubricate the entire sealing area with a thin film of Visilox V-711. Install the valve assembly. Hand tighten firmly.

h. Use a vacuum pump to purge out the residual air from the cylinder. If not available, pressurize the cylinder to 90 Pound-force per Square Inch (PSI) with dry nitrogen (minimum dew point of -70 Degree Fahrenheit (°F)). The regulator gauge should be used to determine this pressure. Check for leaks while pressurized, then expel the pressure.

5-3

i. Complete the applicable RECHARGE procedures.

5.5 RECHARGE INSTRUCTIONS.

Refer to Figure 5-1.

5.5.1 Recharging. Recharging is the replacement of the extinguishing agent. In simple terms, filling a Halon extinguisher is transferring Halon from a large super-pressurized supply cylinder into a smaller non-pressurized cylinder and then super-pressurizing the extinguisher with dry nitrogen. The natural vapor pressure of Halon 1211 at room temperature is about 22 PSI. It should be apparent that the supply cylinder must be super-pressurized with nitrogen to cause the Halon to transfer to the receiving cylinder. The recommended super pressure of the supply cylinder is 80-150 PSI. A partially discharged Halon 1211 extinguisher can be discharged through the supply hose into the supply cylinder by first relieving the nitrogen pressure from the supply cylinder.

5.5.2 Recharge Procedures. Complete recharge procedures are performed as follows:

5-4

• Safety glasses or a face shield must be worn while charging Halon extinguishers. Failure to comply could result in injury to, or death of personnel or long term health hazards.

• Before attempting to devalve the extinguisher, be sure that it is completely depressurized. Never have any part of your body over the extinguisher while removing the valve assembly. Failure to comply could result in injury to, or death of, personnel or long term health hazards.

• Use a protective shield between you and the pressure gauge while charging an extinguisher. Do not stand in front of the gauge if a shield is not available. Failure to comply could result in injury to, or death of, personnel or long term health hazards.

• An unregulated source of pressure, such as a nitrogen cylinder without a pressure regulator, should never be used because the extinguisher could be overpressurized and possibly rupture. A regulated source of pressure, set no higher than 25 PSI (172 kPa) above the operating (service) pressure, shall be used to pressurize the fire extinguishers. The gauge used to set the regulated source of pressure shall be calibrated at least annually.

Failure to comply could result in injury to, or death of, personnel or long term health hazards.

• Never leave an extinguisher connected to a regulator of a high·pressure source for an extended period of time.

A defective regulator could cause the cylinder to rupture due to excessive pressure. Failure to comply could result in injury to, or death of, personnel or long term health hazards.

• Extinguisher shall only be charged with Halon 1211 in accordance with MIL-DTL-38741. Halon 1211 is a corrosive chemical when mixed with even the slightest amount of moisture. After maintenance or hydrotesting, ensure that cylinders are thoroughly dried before recharging. Failure to comply could result in damage to, or destruction of, equipment or loss of mission effectiveness.

• Only standard industrial-grade nitrogen with a dew point of 60 °F (-51.1 Degree Celsius (°C)) or lower CGA nitrogen (specification GIO.I, grades D through P) shall be used to pressurize extinguisher. Compressed air through moisture traps shall not be used for pressurizing. Failure to comply could result in damage to, or destruction of, equipment or loss of mission effectiveness.

• EXCEPTION: Compressed air may be used from special compressor systems capable of delivering air with a dew point of -60 °F (-51.1 °C) or lower. The special compressor system shall be equipped with an automatic monitoring and alarm system to assure that the dew point remains at or below -60 °F (-51.1 °C) at all times.

Failure to comply could result in damage to, or destruction of, equipment or loss of mission effectiveness.

NOTE

Halon agent removed from an extinguisher at the time of maintenance or recharging shall be placed in a separate recovery cylinder and the extinguisher cylinder examined internally for contamination. The Halon agent, retained in the recovery cylinder, may be reused only if no evidence of internal contamination is observed in the extin-guisher cylinder. Halon removed from extinguishers that exhibit evidence of internal contamination or corrosion shall be processed in accordance with the extinguisher manufacturer’s instructions.

a. Complete applicable SERVICE MAINTENANCE in accordance with Paragraph 5.3.1.

b. If empty, depressurize, if partially full, invert the extinguisher and release the nitrogen pressure by squeezing the discharge lever until the gauge reads approximately 22 PSI. Weigh the extinguisher to determine how much Halon must be added for the extinguisher to weigh the amount printed on the label or name band. Total charged weight of a full extinguisher (including nozzle) is 8 pounds, 2 ounces.

c. Place the extinguisher upright on an accurate scale (A), Figure 5-1.

d. Install proper recharge adapter and connect the Halon supply line. (E).

5-5

e. Attach device such as “Pony Spring Clamp” to hold extinguisher valve in the open position. (C).

f. Open Halon supply valve and fill the extinguisher to the predetermined proper weight. Close supply line valve. (D).

g. Disconnect Halon supply and connect to regulated nitrogen supply.

h. Open the nitrogen pressurizing line valve and pressurize the extinguisher to the proper pressure indicated on the gauge.

THE NITROGEN REGULATOR SHOULD BE SET TO NO MORE THAN 25 PSI ABOVE THE REQUIRED

PRESSURE. Shake the extinguisher lightly. Shaking is required because a certain amount of nitrogen will be absorbed by the Halon 1211 and this will speed up the process. After absorption has stopped, top off the extinguisher with additional nitrogen as required. Close nitrogen pressurizing line valve.

i. Remove spring clamp (C), supply line and recharge adapter (B).

j. Check extinguisher for leaks using Halon leak detector. Note that some residual Halon vapor will remain in the valve orifice as a result of the charging procedure. Before attempting to leak detect, vacuum or blow the vapor away from the areas to be checked. Check extinguisher for leaks at the valve orifice, around the collar seal, cylinder welds and gauge. If leak detector is not available, the alternate method is to apply leak detecting fluid or a solution of soapy water to these areas. Use dry nitrogen to blow all liquid residue out of the valve and wipe the extinguisher to dry the exterior.

Do not leave any liquid inside the valve body.

k. Replace pull pin assembly, tamper seal, and nozzle. Ensure that pull pin is securely attached to the valve protector.

Record recharge date and attach recharge tag.

l. Weight extinguisher and confirm that the total weight agrees with the full weight and name band or label (8 pounds, 2 ounces).

5.6 TROUBLESHOOTING GUIDE.

Before attempting to correct any leakage, be sure extinguisher is depressurized. Failure to comply could result in injury to, or death of personnel or long term health hazards.

NOTE

• Leak repairs will require depressurizing and removal of valve assembly. After depressurizing the extinguisher, it will be necessary to clean all valve parts thoroughly. It was always better to locate the source of a leack before the extinguisher is depressurized.

• The Halon 1211 in a leaking extinguisher through the supply line of your recharge equipment back into the supply cylinder. The supply cylinder will first have to be relieved of its nitrogen pressure of allow the Halon to transfer.

• Halon 1211 is a liquid under nitrogen pressure. Variations in temperature may affect gauge readings. The gauge dial has been calibrated to reflect the tested extinguisher temperatures extremes (-65 °F to + 120 °F). When in doubt about a gauge reading, place the extinguisher at room temperature (70 °F) for several hours, to obtain a true reading.

Table 5-1. Troubleshooting Guide

Trouble Remedy Leak at the collar O-ring Empty and depressurize the extinguisher. Remove valve assembly and install a new collar O-ring. Lubricate O-ring with silicone grease.

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Table 5-1. Troubleshooting Guide - Continued

Trouble Remedy Leak through valve Empty and depressurize the extinguisher. Remove valve assembly and disassemble downtube, spring and valve stem. Check valve seat for scratches or foreign material.

Install a new valve stem assembly or valve stem seal.

Leak around gauge threads Empty and depressurize the extinguisher. Remove gauge and reinstall using Teflon tape on threads.

Defective gauge Empty and depressurize the extinguisher. Remove defective gague and install new Halon gauge. Use Teflon tape on gauge threads.

Leak in cylinder Contact Amerex if under warranty; otherwise discard.

Leak during discharge under discharge lever Remove valve assembly. Remove downtube assembly, spring, and valve stem. Install new valve stem.

Gauge indicator high or low in green operable area, no detectable leakage.

Extinguisher may have been subjected to low in green op-erable extreme heat or cold. Condition extinguisher to room temperature (70 °F) for several hours.

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Figure 5-1. Recharging Extinguisher

5-8

CHAPTER 6

DIAGRAMS

6.1 GENERAL.

This chapter includes the diagrams and instructions necessary for the technician to install and prepare for usage the portable, aircraft fire extinguisher.

6.2 ARRANGEMENT.

Diagrams included are as follows:

Title Diagram Number (No.)

Bracket Assembly, 821A ARCFT 04864 Fire Extinguisher 5.0 BCF 04843 Protector Valve Assembly 04903

6-1

Figure 6-1. Bracket Assembly (Original Configuration) PN 04864

6-2

Figure 6-2. Bracket Assembly PN 07495 (New Configuration)

6-3

Figure 6-3. Fire Extinguisher (Typical)

6-4

Figure 6-4. Protector Valve Assembly

6-5/(6-6 blank)

CHAPTER 7

ILLUSTRATED PARTS BREAKDOWN

SECTION I INTRODUCTION

7.1 INTRODUCTION.

This Illustrated Parts Breakdown (IPB) is designed to assist supply and maintenance personnel in requisitioning, storing, issuing, and identifying parts, and to illustrate assembly and disassembly relationships. It is not intended to be used as an authority for procedures of disassembly or assembly. Maintenance or repair shall be performed by authorized personnel using the applicable maintenance instructions.

7.2 MODELS COVERED.

This IPB lists and describes items necessary for support of the Five Pound Capacity Liquefied Gas Halon 1211 Portable Aircraft Fire Extinguisher Part Number (PN) FE 355T, B355T and PN 16155-BOTTLE, manufactured by Amerex Corpo-ration.

7.3 FINDING PART NUMBERS, ILLUSTRATION, DESCRIPTION.

Refer to the illustrations at the end of this section for an explanation of how to find a part number or description using the table of contents and illustration titles and how to find the illustration or description if a part number or reference designation is known.

7.4 SIMILAR ASSEMBLIES.

Similar assemblies, which contain a majority of identical parts, are combined and listed as follows; otherwise, assemblies are listed separately.

• Similar assembly part numbers are listed first, followed by detail parts.

• A part common to all assemblies in the same quantity is listed once.

• A part common to all assemblies in differing quantities is listed once for each quantity and is…