MANDATORY MAINTENANCE AND INSPECTION FOR AFT FUSELAGE BELLCRANK FASTENER ON ALL CH--47D, MH--47D AND MH--47E AIRCRAFT

URGENT

TB 1--1520--240--20--153

DEPARTMENT OF THE ARMY TECHNICAL BULLETIN

MANDATORY MAINTENANCE AND INSPECTION FOR

AFT FUSELAGE BELLCRANK FASTENER

ON ALL

CH--47D, MH--47D AND MH--47E AIRCRAFT

Headquarters, Department of the Army, Washington, D. C.

17 February 2004

DISTRIBUTION STATEMENT A: Approved for public release; distribution is unlimited.

NOTE

THIS PUBLICATION IS EFFECTIVE UNTIL RESCINDED OR SUPERSEDED.

NOTE

In accordance with AR 95--1, Chapter 6, MACOM Commanders may

authorize temporary exception from message requirements. 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 con-

sequences of continued aircraft operation.

Summary

a. Background - The baseline version of the CH-47D and the MH-47E Maintenance Manuals contain

figures that are either incorrect or lack proper resolution, possible causing incorrect Aft Fuselage Bellcrank

fastener installation, and consequently causing reduced clearance between control system linkages.

b. Message Purpose -

(1) Inspect bolt installations, on certain tunnel control linkage joints, for correct bolt orientations.

(2) Remove incorrectly installed bolts and reinstall with correct bolt orientations.

(3) Change the Technical Manual to reflect this ASAM.

End Items Affected All H-47 series aircraft.

Assemblies/Components/Parts Affected

a. Suspect/discrepant assemblies/components/parts -

Bolt, Close Tolerance P/N MS27576-5-19, NSN 5306-00-005-0743

This TB supersedes USAAMCOM Message, 031845Z FEB 04 CH-47-04-ASAM-01