URGENT
TB 1-1520-238-20-99
DEPARTMENT OF THE ARMY TECHNICAL BULLETIN
ONE TIME INSPECTION OF THE MAIN TRANSMISSION
AH-64 HELICOPTERS
Headquarters, Department of the Army, Washington, D. C.
19 November 1999
DISTRIBUTION STATEMENT A: Approved for public release; distribution is unlimited.
NOTE
THIS PUBLICATION IS EFFECTIVE UNTIL RESCINDED OR SUPERSEDED.
Priority Classification.
URGENT
a. Aircraft in Use. Upon receipt of this Technical Bulletin (TB), the condition status symbol of the cited
aircraft will be changed to a red horizontal dash //--// . The red horizontal dash //--// entry shall state, "In-
spect aircraft transmission historical records in accordance with TB 1-1520-238-20-99". The red horizontal
dash //--// may be cleared when the inspection of paragraph 8 and correction procedures in paragraph 9 are
completed. Inspect all aircraft as soon as practical but no later than the task inspection suspense date. Fail-
ure to comply with the requirements of this TB within the time frame specified will cause the status symbol
of the affected aircraft to be upgraded to a red //X// .
b. Aircraft in Depot Maintenance. Aircraft will not be issued until compliance with this TB has been
completed.
c. Aircraft Undergoing Maintenance. Aircraft will not be released until compliance with this TB has
been completed.
d. Aircraft in Transit. For aircraft away from home station, this TB authorizes a one time flight with inter-
mediate stops, as necessary, to return to the nearest secured maintenance facility or home station, prior to
complying with this TB.
(1) Surface/Air Shipment. Same as paragraph 1.a.
(2) Ferry Status.
(a) Same as paragraph 1.a.
(b) Those aircraft that have a DD 250 and are at Boeing will be inspected prior to ferry to
final destination.
e.
Maintenance Trainers (Category A and B). Same as paragraph 1.a.
This TB supersedes USAAMCOM Safety of Flight 122136Z Nov 99 (AH-64-00-02) and USAAMCOM Safety of Flight 040051Z D
99 (AH-64-00-03).
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