* TB 1-1520-237-20-178
URGENT
DEPARTMENT OF THE ARMY TECHNICAL BULLETIN
ALL H-60 AIRCRAFT
INCREASE IN FATIGUE LIFE OF THE
AEREX MANUFACTURED TAIL ROTOR
INBOARD RETENTION PLATE
P/N 70358-06612-042
Headquarters, Department of the Army, Washington, D. C. 30 August 1996
DISTRIBUTION STATEMENT A: Approved for public release; distribution is unlimited.
NOTE
THIS PUBLICATION IS EFFECTIVE UNTIL RESCINDED OR SUPERSEDED.
1.
Priority Classification. Urgent
a. Aircraft in Use. Aircraft status not affected by this TB.
b. Aircraft in Depot Maintenance. Same as paragraph 1.a.
c. Aircraft Undergoing Maintenance. Same as paragraph 1.a.
d. Aircraft in Transit.
(1) Surface/Air Shipment. Inspect at final destination.
(2) Ferry Status. Same as paragraph 1.d.(1).
e. Maintenance Trainers (Category A and B). Same as paragraph 1.a.
f. Component/Parts in Stock Including War Reserves at All Levels (Depot and Others). For applicable assemblies,
review serial numbers as identified in paragraph 7 and annotate component records to reflect the new retirement life.
2.
Task/Inspection Suspense Date. N/A.
3.
Reporting Compliance Suspense Date. N/A.
4.
Summary of the Problem.
a. Per TB 1-1520-237-20-173, the retirement life of Aerex manufactured tail rotor inboard retention plates was
reduced to 148 flight hours. The engineering testing for the subject components has been successfully completed
*This TB supersedes USAATCOM Message 221645Z Aug 96, (UH-60-96-ASAM-08).
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