Atch 4 - TCTO 13F4-4-501.pdf

CUI

DEPARTMENT OF THE AIR FORCE

TECHNICAL ORDER

INSPECTION OF THE DOWN TUBE AND VALVE

ASSEMBLY SOLDER ON AMEREX HALON 1211 150Lb

WHEELED FLIGHTLINE FIRE EXTINGUISHER

NOTE

Commanders are responsible for bringing this technical order to the attention of all Air Force personnel cleared for operation of affected systems.

In accordance with TO 00-5-15, all affected Wheeled Flightline Fire Extinguishers that are in non-compliance by the compliance date of this TCTO will be removed from service. Extensions will only be granted on a case-by-case basis. The local/host Mission Support Group Commander (or equivalent) must submit requests for extensions via the owning MAJCOM to WR-

ALC/WNZ.

Requests must include the justification or extension, and expected date the extinguisher will be in full compliance.

This is an AFLCMC/WNZ TCTO. POC at AFLCMC/WNZ is Willie Edwards, DSN 468-6462.

1. APPLICATION.

1.1 Identification. This Time Compliance Technical Order (TCTO) is applicable to the

AMEREX, HALON 1211 150 LB Wheeled Flightline Fire Extinguisher (WFFE), Model 600.

NSN 4210-01-140-2233, NSN 4210-01-332-0793 and NSN 4210-01-457-9062.

1.2 Kit Applicability by Model and Serial Number. Not Applicable.

1.3 Verification. TCTO verification was accomplished in accordance with TO 00-5-15, at Ellsworth AFB, SD and Wright Patterson AFB, OH, on Class A Mishap AFSAS #983980, 15 September 2020.

2. PURPOSE.

The purpose of this Time Compliance Technical Order (TCTO) is to perform a One-Time Visual Inspection on the solder quality found at the joint connecting the Down Tube and Valve Assembly. Note in mid-2006 the manufacturer changed the material used in the Down Tube from Copper to Stainless Steel.

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.

TCTO: 13F4-4-501

DATA CODE: 1300051

DATE: 20210312

RESCISSION DATE: 20220301

DISTRIBUTION STATEMENT A - Approved for public release; distribution is unlimited. 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.

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

3. WHEN TO BE ACCOMPLISHED.

3.1 Compliance Period. Work shall be accomplished not later than 180 days after receipt of this TCTO. Failure to accomplish the work by the expiration of compliance period shall be justification for withdrawing the affected system/equipment from service until compliance is accomplished. If the compliance period cannot be met before the TCTO rescission date, the performing organization will request an extended compliance period according to TO 00-5-15.

3.2 TCTO Rescission Date. The TCTO rescission date is 01 Mar 2022, unless extended via TCTO supplement or notices received through the Reliability and Maintenance Information System (REMIS) or other Management Information Systems. TCTOs will be retained until listed as rescinded in the applicable index.

4. BY WHOM TO BE ACCOMPLISHED.

Maintenance, servicing, and recharging 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. If these conditions cannot be met, all Wheeled Flightline Fire Eextinguisher’s within compliance of maintenance standards will be sent to a local Amerex Distributor (https://www.amerex-fire.com/distributors/find-a-distributor/).

If maintenance is to be performed by contract, the contractor must perform all maintenance and inspections using technical manual 13F4-4-121 or appropriate vendor’s commercial manual.

5. WHAT IS REQUIRED.

5.1 Supply Information and Requirements. Not Applicable

5.2 Personnel Information and Requirements.

Work Phases Man-Hours

Inspection 1.0

Removal/Replacement of Down Tube and Valve Assembly

1.0

Total Man-Hours 2.0

6. HOW WORK IS ACCOMPLISHED. (Refer to TO 13F4-4-121, Chapter 5 prior to doing any work)

Controlled by: AFLCMC/WNZD CUI Category: Controlled Technical Information Distribution/Dissemination Control: A POC: Willie Edwards DSN: 468-6462

Before attempting to de-valve 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.

Halon 1211 should not be mixed with even the slightest amount of moisture. Prolonged exposure of a de-valved cylinder to ambient air should be avoided to prevent moisture contamination.

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 extinguisher cylinder. Halon removed from extinguishers that exhibit evidence of internal contamination or corrosion shall be processed in accordance with the extinguisher manufacturer’s instructions.

6.1 Use instruction (5.4 COMPLETE MAINTENANCE) from TO 13F4-4-121 to discharge the valve assembly and remove the down tube from the cylinder assembly.

6.2 Once the down tube has been removed, use the inspection criteria below.

a. Visual inspection should ensure solder joint is fully penetrated by solder. A good solder joint will have a completely full solder bead all the way around the tube/valve joint and form a “fillet” between the valve and the down tube. This bead will be fully filled around the circumference with no gaps. (Refer to Fig 1-1)

Figure 1-1

b. A suspect joint will have pits, voids, and valleys in the joint. If a visible gap (lack of solder) is found between the Retainer and Down Tube interface (Figure 1-2 & 1-3), replace downtube/retainer assembly with approved Amerex manufacturer part (P/N:

04938).

Figure 1-2 Figure 1-3

7. SUPPLEMENTAL INFORMATION.

7.1 Fuel System Defuel/Purge. Not Applicable

7.2 Operational Checkout Requirements. Not Applicable

7.3 Weight and Balance Information. Not Applicable

7.4 Technical Manuals Affected.

TO NUMBER DATE OF BASIC ISSUE

13F4-4-121 02 DEC 2018

8. RECORDS.

8.1 Action Required on Maintenance Records.

a. Upon completion of TCTO, update applicable Model 600 Fire Extinguisher AFTO 244 and maintenance data collection systems in accordance with command directives. Update IMDS or REMIS using the following data.

b. Action Required on Supply Records. Not Applicable

c. Retrofit Change or Inspection Identification Marking. Not Applicable

d. Item requiring TCTO accomplishment

8.2 Action Required on Supply Records. Not Applicable

8.3 Retrofit Change or Inspection Identification Marking.

Completion of the down tube inspection will be represented by the decal provided below stating the “The TCTO Number and TCTO Completion Date”. Per the standard, a decal is used to avoid corrosion that a stamp would cause. This page can be printed out and (Figure 1-4) can be cut out and used to create a decal once filled out. After the data for TCTO # and Date Completed is written in, apply clear tape to the front and back of the paper to laminate it. Placement for the decal will be on the right-hand side of the discharge valve. (Figure 1-5) Apply clear epoxy (NSN: 8040-01-628-6226) over the decal, to seal it from the elements. (Figure 1-6)

Figure 1-4 Figure 1-5 Figure 1-6

9. POINT OF CONTACT.

The Technical Content Manager (TCM) POC for this TCTO is Willie Edwards, AFLCMC/WNZ, willie.edwards@us.af.mil, DSN 468-6462. Engineering POC is Chris Peisher, AFLCMC/WNZ, christopher.peisher@us.af.mil, DSN 472-1371.

THE END

BY ORDER OF THE SECRETARY OF THE AIR

FORCE

CHARLES Q. BROWN, GENERAL, USAF

Chief of Staff

ROBERT D. MCMURRY, LIEUTENANT GENERAL, USAF

Commander, AFMC

Prepared by AFLCMC/WNZ DSN 468-6462