Summary of the Problem. - TB-1-1520-237-20-2110002

TB 1152023720211

e. Maintenance Trainers (Category A, and B). Same as paragraph 1.a.

f. Component/Parts in Stock at All Levels (Depot and Others) Including War Reserves . Upon receipt

of this TB, the material condition tags of all items in all condition codes listed in paragraph 6 shall be annotated

to read UH6099ASAM08 Air Industries Bellcrank Support Assembly not complied with.

(1) Wholesale Stock. Upon receipt of this message all serviceable items (condition codes "A",

"B", "C", "D", and "E"), identified through the paragraph 8 inspection shall be placed in condition code "J" and

tagged with a suspended tag/labelmateriel, DD Form 1575/DD Form 15751. Do not remove original condi-

tion tags. Only those paragraph 6 components that have more than 500 hours useful life remaining, based

on the life specified in paragraph 9, will be issued. Report compliance with this TB in accordance with para-

graph 14.d.(1).

(2) Retail Stock. Upon receipt of this TB Commanders and others maintaining retail stock at

installation level and below shall contact the supported Aviation Unit to perform the inspection required by

paragraph 8 and the correction procedures of paragraph 9. Only those paragraph 6 parts that are known to

have more than 500 useable hours remaining, based on the life specified in paragraph 9, may be installed

on aircraft. Disposition of materiel will be IAW paragraph 10. Report compliance with this TB IAW paragraph

14.d.(2).

g. Component/Parts In Work (Depot Levels and Others). N/A.

Task/Inspection Suspense Date. Within next 10 flight hours/14 days.

Reporting Compliance Suspense Date. No later than 30 June 1999 per paragraph 14.a of this TB.

Summary of the Problem.

a. The Bellcrank Support Assembly, being delivered under production and spares contracts through

Sikorsky Aircraft Company, was manufactured by Air Industries, an untested source. A reduced life of 5,000

hours must be set on Bellcrank Support Assemblies, P/N 7040008162042/045, and a reduced life of 2,200

hours on Bellcrank Support Assembly P/N 7040008162043, from Air Industries, CAGE 8L513. These re-

duced lives will hold until the required engineering tests are complete. The subject part is also known as the

main support bridge and/or bridge support.

b. For manpower/downtime and funding impacts, see paragraph 12.

This TB has three purposes.

(1) Require a one time inspection to locate Bellcrank Support Assemblies, P/N

7040008162042/043/045, manufactured by Air Industries, CAGE 8L513 which are installed on aircraft or

in supply.

(2) Establish an interim retirement life of 5,000 hours for Bellcrank Support Assembly, P/N

7040008162042/045, manufactured by Air Industries, CAGE 8L513.

(3) Establish an interim retirement life of 2,200 hours for Bellcrank Support Assembly, P/N

7040008162043, manufactured by Air Industries, CAGE 8L513.

End Items to be inspected. All H60 aircraft.

Assembly Components to be Inspected.

NOMENCLATURE

PART NUMBER

NATIONAL STOCK NUMBER

Support Assembly, Bellcrank

7040008162045

3040014504841

Support Assembly, Bellcrank

7040008162042

1560012212619

Support Assembly, Bellcrank

7040008162043

N/A

Parts to be Inspected. N/A.

Inspection Procedures.