DEPARTMENT OF THE ARMY TECHNICAL BULLETIN
WING MOUNTING NUTS/BOLTS, ALL AH-64 SERIES
Headquarters, Department of the Army, Washington, D.C.
10 March 2003
DISTRIBUTION STATEMENT A: Approved for public release; distribution is unlimited.
THIS PUBLICATION IS EFFECTIVE UNTIL RESCINDED OR SUPER-
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-
MACOM commanders may authorize temporary exception from TB re-
quirements 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 continued aircraft op-
1.1 Background While removing a wing during maintenance, a wing mounting bolt was found to have no
torque and was subsequently discovered to have a cracked barrel nut. Wing barrel nuts (P/Ns HS 5483-820
and HS 5483-1018) are subject to cracking. Failure of the barrel nuts can lead to loss of the wing.
1.2 TB Purpose
1.2.1 Require initial and recurring inspections of the wing mounting hardware.
*This TB supersedes USAAMCOM Aviation Safety Action Message AH-64-03-ASAM-04 241550Z Feb 03.