ROUTINE
TB 1-1520-238-20-91
DEPARTMENT OF THE ARMY TECHNICAL BULLETIN
ONE TIME AND RECURRING INSPECTION,
MODIFICATION AND REPAIR OF 7-311140134 ENGINE
NACELLE LONGERONS FOR AH-64 HELICOPTERS
Headquarters, Department of the Army, Washington, D.C.
15 May 1999
DISTRIBUTION STATEMENT A: Approved for public release; distribution is unlimited.
NOTE
THIS PUBLICATION IS EFFECTIVE UNTIL RESCINDED OR SUPERSEDED.
1. Priority Classification. ROUTINE.
a. Aircraft in use. Upon receipt of this technical bulletin the condition status symbol of the cited
aircraft will be changed to a Red Horizontal Dash
The Red Horizontal Dash
may be cleared
when the inspection of paragraph 8 below are completed. The affected aircraft shall be inspected as soon
as practical but no later than the Task/Inspection suspense date. Failure to comply requirements of this
Technical Bulletin within the time frame specified will cause the status symbol of the affected aircraft to be
upgraded to a Red X
Aircraft in Depot Maintenance. Aircraft will not be issued until compliance with this TB has been
b.
completed.
Aircraft undergoing maintenance. Aircraft will not be issued until compliance with this TB has
C.
been completed.
Aircraft in transit.
d.
(1) Surface/Air shipment. Prior to first flight.
(2) Ferry status. Inspect at final destination.
Maintenance Trainers. (Category A, B and others). Same as paragraph a. above.
e.
Component/Parts in Stock Including War Reserves at all Levels (Depot and others). N/A.
f.
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