TB 1--1520--237--20--234
c.
Aircraft in Transit.
(1) Surface/Air Shipment -Same as paragraph 1.a..
(2) Ferry Status - Inspect at final destination.
d.
Maintenance Trainers (Category A, and B). Same as paragraph 1.a..
e. Component/Parts in Stock at All Levels (Depot Level and Others), including War Reserves. Upon
receipt of this TB, depot and materiel activity commanders at all levels will ensure the material condition tags
of all items listed in paragraph 7. are annotated to read: "TB 1-1520-237-20-234, main rotor blade expandable
pin inspection, not complied with."
(1) Wholesale Stock. Upon Receipt of this TB, depot and materiel activity commanders will en-
sure all items in condition codes //A//, //B//, //C//, //D//, and //E//, listed in paragraph 7, are placed in condition
code //J// and tagged with a suspended tag/label - Materiel, DD form 1575/DD form 1575-1. Do not remove
original condition tags. Report compliance with this TB IAW paragraph 14.b(2), NLT 23 July 2001.
(2) Retail Stock. Report receipt of this TB IAW paragraph 14.c.(1) NLT 23 July 2001. Upon re-
ceipt of this TB, commanders and facility managers maintaining retail stock at installation level and below
shall contact the supported aviation unit to perform the procedures required IAW paragraphs 8 and 9 on
suspect material. Dispose of discrepant material IAW paragraph 10. Report compliance with this TB IAW
f. Components/Parts in Work (Depot Level and Others). Depot and other maintenance activity com-
manders will ensure items listed in paragraph 7 are not issued until they are in compliance with this TB.
2. Task/Inspection Suspense Date. Complete the inspection IAW paragraphs 8 and 9 prior to next flight
but NLT 30 July 2001and report IAW para 14.a.(2) NLT 2 August 2001.
3.
4.
Summary of Problem.
a. SOF Message UH-60-01-09 (TB 1-1520-237-20-233) was issued on 8 June 2001 requiring an in-
spection of the main rotor expandable pins, P/N 70103-102/103. That SOF removed all main rotor blade ex-
pandable pins that had a material non-conformance from service and stock and mandated a one time inspec-
tion of all other pins for cracks and corrosion. As a result of the SOF, a rework program has been initiated
to replace the discrepant part on these APEX manufactured pins.
b.
Manpower/downtime and funding impacts see para 12.
c.
The purpose of this TB is to:
(1) Provide specific serial number information to allow identification of serviceable pins manufac-
tured by APEX manufacturing.
(2) Provide disposition guidance for non-conforming pins.
5.
End Items to be inspected . All H-60 series aircraft.
Assembly Components to be Inspected. N/A
Parts to be Inspected.
NOMENCLATURE
PART NUMBER
NSN
Pin, Expanding Grip
70103-08107-102
Pin, Expanding Grip
70103-08107-103
No NSN
Inspection Procedures.
a. Determine that all inspection procedures required IAW UH-60-01-09 (TB 1-1520-237-20-233) have
been completed.
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