TB 1-1520-238-20-115
b. Aircraft in Depot Maintenance. Same as paragraph 1.a. Depot commanders will not issue
aircraft until they are in compliance with this TB.
c. Aircraft Undergoing Maintenance. Commanders and facility managers will not issue aircraft
until they are in compliance with this TB.
d. Aircraft in Transit.
(1) Surface/Air Shipment. Same as paragraph 1.a.
(2) Ferry Status.
(b) Boeing-Mesa will inspect DD 250 aircraft prior to those aircraft departing for ferry to
final destination.
e. Maintenance Trainers (Category A and B). Same as paragraph 1.a.
f. Component/Parts in Stock at All Levels (Depot and Others) Including War Reserves. Upon
receipt of this TB, depot and materiel activity commanders will ensure the material condition tags of all
items in all condition codes listed in paragraphs 6 and 7 are annotated to read "TB 1-1520-238-115,
Inspect Tail Rotor Swashplate Assembly, not complied with."
(1) Wholesale Stock. Report receipt of this TB in accordance with paragraph 14.c.(1). Upon
receipt of this TB, depot and materiel activity commanders will ensure that all serviceable items (condition
codes //a//, //b//, //c//, //d//, and //e//) listed in paragraphs 6 and 7 located in wholesale depot storage are
placed in condition code //j// and tagged with a suspended tag/label -- Materiel, DD Form 1576/DD Form
1576-1. Do not remove original condition tags. Report compliance with this TB in accordance with
(2) Retail Stock. Upon receipt of this TB, commanders and facility managers maintaining
retail stock at installation level and below shall contact the supported aviation unit to perform the
procedures required in accordance with paragraphs 8 and 9 on suspect materiel. Dispose of discrepant
14.d.(2).
g. Components/Parts in Work (Depot Level and Others). Depot and other maintenance activity
commanders will ensure items listed in paragraphs 6 and 7 are not issued until they are in compliance
with this TB.
2.
Task/Inspection Suspense Date. Complete the inspection in
accordance with paragraph 8 no
later
3.
Reporting Compliance Suspense Date.
Report compliance in
accordance with paragraph 14.a.
no later than 17 January 2001.
4.
Summary of the Problem.
a. Safety of Flight (SOF) message AH-64-01-02 immediately grounded all AH-64 series aircraft
due to a tail rotor swashplate assembly found to have excessive play between the rotating and
non-rotating swashplates. In addition to grounding the AH-64 fleet, SOF AH-64-01-02 also required the
identification and removal of twenty-eight (28) swashplates that are potentially discrepant. Investigation
has determined that additional swashplates are suspect. This TB includes all suspect swashplate
assemblies and bearings, including those addressed in SOF AH-64-01-02.
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