TB 1-1520-238-20-110
(1) TM 1--2835--213--23, APU fuel solenoid valve inspections to be added to the AH--64A --
(a) Under installation in paragraph 3--3 add -- "Check fuel solenoid valve body for leaks. No
leaks allowed."
(b) Under inspection in paragraph 3--3 add -- "Inspect for gap between the coil assembly and
valve body. None allowed."
(c) Under inspection in paragraph 3--3 add -- "Inspect for yielded or deformed cover assembly
especially near the four screw heads. None allowed."
(2) Add the following warning to the AH--64D IETM [Under APU System, APU Maintenance Op-
eration Check (MOC) and APU Startup Procedure], and for the AH--64A, TM 1--1520--238--T--8 [at the start
of paragraph 15--10 and 15--12] --
WARNING
When the APU drive shaft is rotating, maintenance personnel should stay clear of the APU drive shaft and
PTO clutch catwalk area while performing maintenance due to potential catastrophic failure of the PTO clutch.
Catastrophic failure of the PTO clutch can cause extensive damage to the catwalk area.
13. References. --
a.
DA Pam 738--751, 15 Mar 1999.
b. Interactive Electronic Technical Manual (IETM) -- TM 1--1520-- Longbow/Apache IETM, CD No. 1,
version 3.1.2, data 19 Nov 1998, CD date 1 Dec 1998 or subsequent.
c. TM 1--1520--238--23 -- Aviation Unit and Intermediate Maintenance Manual for AH--64A Apache At-
tack Helicopter, 16 May 1994.
d. TM 1--2835--213--23 -- Aviation Unit and Aviation Intermediate Maintenance Manual, Engine Assem-
bly Gas Turbine (GTCP36--55(H)), 29 February 1996.
e. TM 1--1520--238--23P--3 -- Aviation Unit and Intermediate Maintenance Repair Parts and Special
Tools List for AH--64A Apache, 28 May 1996.
f. TM 1--1500--328--23 -- Aeronautical Equipment Maintenance Management Policies and Proce-
dures, 30 July 1999.
14. Recording and Reporting Requirements.
a. Reporting Compliance Suspense Date (Aircraft) -- Upon entering requirements of this TB on DA
Form 2408--13--1 on all subject MDS aircraft, commanders will forward a priority message, datafax or email
to: CDR, AMCOM, ATTN: AMSAM--SF--A (SOF Compliance Officer), Redstone Arsenal, AL 35898--5000,
IAW AR 95--1. Datafax number is DSN 897--2111 or (256) 313--2111. E--mail address is "SAFEADM@reds-
tone.army.mil." The report will cite this message and TB number, date of entry in DA Form 2408--13--1, the
aircraft mission design series and serial numbers of aircraft in numerical order.
b.
Task/Inspection Reporting Suspense Date (Aircraft) -- N/A.
c.
Reporting Message Receipt (Spares) -- N/A.
d.
Task/Inspection Reporting Suspense Date (Spares) -- N/A.
e.
The following forms are applicable and are to be completed IAW DA PAM 738--751, 15 Mar 1999
--
NOTE
ULLS--A users will use applicable "E" forms.
(1) DA Form 2408--13, Aircraft Status Information Record.
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