MANDATORY INSPECTION OF FORWARD AND AFT ROTOR HUB LIGHTENING HOLES ON ALL CH--47D, MH--47D AND MH--47E AIRCRAFT

URGENT

TB 1-1520-240-20-131

DEPARTMENT OF THE ARMY TECHNICAL BULLETIN

MANDATORY INSPECTION

FORWARD AND AFT ROTOR HUB

LIGHTENING HOLES

ON ALL

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

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

9 November 2000

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THIS PUBLICATION IS EFFECTIVE UNTIL RESCINDED OR SUPERSEDED.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, MACOM Commanders

may authorize temporary exception from ASAM 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 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 for rotor

hub lightening holes in accordance with CH--47--01--ASAM--03 (TB 1--1520--240--20--131) within the next 10

flight hours, but no later than 23 NOV 00." Clear the red horizontal dash // -- // entry when the procedures in

accordance with paragraphs 8 and 9 are completed. The affected aircraft shall be inspected as soon as practi-

cal but no later than 23 NOV 00. Commanders who are unable to comply with the requirements of this Techni-

cal Bulletin within the time frame specified will upgrade the affected aircraft status symbol to a red // X //.

b. Aircraft in Depot Maintenance. Depot Commanders will not issue aircraft until they are in com-

pliance with this message.

c. Aircraft Undergoing Maintenance. Commanders and Facility Managers will not issue aircraft until

they are in compliance with this message.

Aircraft in Transit.

This TB supersedes USAAMCOM Message 082250Z NOV 00 CH--47--01--ASAM--03.