INITIAL AND RECURRING INSPECTION OF THE FIRE EXTINGUISHER CHECK VALVES FOR CORROSION FOR ALL AH--64 AIRCRAFT

URGENT

TB 1-1520-238-20-126

DEPARTMENT OF THE ARMY TECHNICAL BULLETIN

INITIAL AND RECURRING INSPECTION OF THE FIRE

EXTINGUISHER CHECK VALVES FOR CORROSION

FOR ALL AH--64 AIRCRAFT

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

11 April 2002

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

NOTE

THIS PUBLICATION IS EFFECTIVE UNTIL RESCINDED OR SUPERSEDED.

Priority Classification. Urgent

a. Aircraft in Use. Upon receipt of this technical bulletin (TB), make the following entry on the DA

Form 2408--13--1. Enter a red horizontal dash //--// status symbol with the following statement: "Inspect

the fire extinguisher check valves for corrosion IAW AH--64--02--ASAM--05 (TB 1--1520--238--20--126)

within the next 125 flight hours, but NLT 2 September 2002." Clear the red horizontal dash //--// entry

when the procedures IAW paragraphs 8 and 9 are completed. The affected aircraft shall be inspected as

soon as practical but no later than 2 September 2002. Commanders who are unable to comply with the

requirements of this message within the time frame specified will upgrade the affected aircraft status

symbol to a red //X//.

b. Aircraft in Maintenance Facility.

(1) Aircraft in AVUM, AVIM, or Depot -- Commanders and facility managers will not issue

aircraft until they are in compliance with this message.

(2) Aircraft at Contractor Facility -- Boeing will inspect DD 250 aircraft prior to those aircraft

departing for ferry to final destination.

Aircraft in Transit.

(1) Surface/Air Shipment. Same as paragraph 1a.

(2) Ferry Status. Same as paragraph 1a.

d. Maintenance Trainers (Category A and B). Same as paragraph 1a.

e. Component/Parts in Stock at All Levels (Depot and Others) Including War Reserves. N/A.

This TB supersedes USAAMCOM Message 042000Z Apr 02 (AH--64--02--ASAM--05) and TB 1--1520--238--20--119.