URGENT
TB 1--1520--240--20--144
DEPARTMENT OF THE ARMY TECHNICAL BULLETIN
INSPECTION OF
SWASHPLATE LOWER SEAL RETAINER
SELF-LOCKING NUT
ON ALL
CH--47D, MH--47D AND MH--47E AIRCRAFT
Headquarters, Department of the Army, Washington, D. C.
31 January 2002
DISTRIBUTION STATEMENT A: Approved for public release; distribution is unlimited.
NOTE
THIS PUBLICATION IS EFFECTIVE UNTIL RESCINDED OR SUPERSEDED.
Priority Classification. Urgent
NOTE
In accordance with AR 95--1, paragraph 6-6A/6-14A, MACOM Com-
manders may authorize temporary exception from message require-
ments. 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 operation.
a. Aircraft in Use. Upon receipt of this Technical Bulletin, make the following entry on the DA Form
2408--13--1. Enter a red horizontal dash // -- // status symbol with the following statement: "Inspect swashplate
lower seal retainer self-locking nuts in accordance with SOF CH-47-02-01 prior to next flight, but no later than
8 February 2002." Clear the red horizontal dash //--// entry when the procedures in accordance with paragraph
8 and 9 are completed. The affected aircraft shall be inspected as soon as practical but no later than 8 Febru-
ary 2002. Commanders who are unable to comply with the requirements of this Technical Bulletin within the
time frame specified will upgrade the affected aircraft status symbol to a red // X //.
b. Aircraft in Maintenance --
(1) Aircraft in AVUM, AVIM, or Depot Level Maintenance -- Same as paragraph 1a.
(2) Aircraft at Contractor Facility -- Boeing will inspect DD250 aircraft prior to those aircraft de-
parting for ferry to final destination.
This TB supersedes USAAMCOM Message 242132Z JAN 02 SOF CH- 47--02--01.
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