URGENT
*TB 1-1520-238-20-134
DEPARTMENT OF THE ARMY TECHNICAL BULLETIN
INSPECTION AND TORQUE CHECK PYLON ATTACH-
MENT BOLTS, AH64 SERIES AIRCRAFT
Headquarters, Department of the Army, Washington, D.C.
10 March 2003
DISTRIBUTION STATEMENT A: Approved for public release; distribution is unlimited.
NOTE
THIS PUBLICATION IS EFFECTIVE UNTIL RESCINDED OR SUPER-
SEDED.
NOTE
This Technical Bulletin (TB) is issued IAW AR 95-1 and has not been trans-
mitted to units subordinate to addressees. Addressees will immediately re-
transmit this message to all subordinate units, activities or elements af-
fected or concerned. MACOM's will immediately verify this transmission to
the AMCOM SOF Compliance Officer (AMSAM-SF-A, safeadm@reds-
tone.army.mil).
NOTE
MACOM commanders may authorize temporary exception from technical
bulletin (TB) requirements IAW AR 95-1, Ch. 6. Exception may only occur
when combat operations or matter of life or death in civil disasters or other
emergencies are so urgent that they override the consequences of contin-
ued aircraft operation.
1. Summary
1.1 Background There has been four incidents reported by field units of the bolts used to attach the pylons
to the wing breaking off. A dual pylon bolt failure could cause the separation of the pylon from the wing.
1.2 TB Purpose
1.2.1 Perform an initial inspection and lower the torque for the pylon attachment bolts.
1.2.2 Perform a recurring pylon mounting bolt torque check.
*This TB supersedes USAAMCOM Aviation Safety of Flight Message AH64-03-ASAM-05 241600Z FEB 03.
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