TB 1--1520--251--20--05
2.
Task/Inspection Suspense Date. Complete the inspection IAW paragraph 8 within 10
flight hours but
NLT 11 April 2002 and report IAW paragraph 14a(2) NLT 17 June 2002.
Reporting Compliance Suspense Date. No
later than 5
June 2002 per paragraph 14.a.1 of
this TB.
4.
Summary of the Problem.
a. Units have reported that the AH--64D APU two piece welded lifting lug (P/N 3870154--1) has broken
during APU remove/installation from the aircraft. The lug is breaking at the weld at the lug and plate interface.
A one piece lifting lug is available to replace the two piece lugs.
c.
The purpose of this TB is to--
(1) Provide alternate APU removal and installation procedures for an APU with the two piece
welded lifting lug.
(2) Required replacement of the two piece welded lifting lug with the one piece lug on or before
30 November 2002.
5.
End Items to be inspected. All Army aircraft AH--64D.
Assembly Components to be Inspected.
NOMENCLATURE
PART NUMBER
NATIONAL STOCK NUMBER
APU
All
2835--01--493--9922
Parts to be Inspected.
PART NUMBER
NATIONAL STOCK NUMBER
NOMENCLATURE
Bolt, Eye
3870154--1
5306--01--478--3441
Inspection Procedures.
a. On or before the next 10 hour/ 14 day inspection perform the following--
(1) Gain access to the APU lifting lug IAW IETM.
(2) Inspect the APU for a one or two piece lifting lug.
(3) If a one piece lug is installed-- inspection is complete. Clear the red horizontal "--".
(4) If a two piece welded lifting lug is installed proceed to paragraph 9.
Correction Procedures.
a. For APU's with the two piece lug installed --
(1) Clear the red horizontal dash "--" entry required IAW paragraph 1a of this message. Enter
a red diagonal "/" status Symbol with the following statement: "alternate APU lifting Procedures required IAW
TB 1--1520--238--20--05."
(2) Paint the two piece welded lug with bright red paint. As an indication that the alternate APU
removal/installation.Procedures are required IAW with paragraph 9b and 9c.
(3) Enter a red diagonal "/" status symbol with the following statement: "replace APU lifting lug
IAW TB 1--1520--238--20--05 NLT 30 November 2002."
2