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Table 2–1. Master Failure Symptom Index (cont) | Up
TM-1-1520-238-T-2 Army Model AH-64 Helicopter (NSN
1520-01-106-9519) (EIC: RHA) Master Failure Symptom Index Manual | Next
Table 2–1. Master Failure Symptom Index (cont) |
TM 1–1520–238–T–2
2–56
Change 5
Table 2–1.
Master Failure Symptom Index (cont)
Failure Symptom
MOC
Reference
DATA LINE 1 H 12S WN 0000 0000 AND LINE 2
E010.0 CL6 DOES NOT APPEAR ON
SCRATCH PAD DISPLAY LINE (CDU: TOP
RIGHT VAB PRESSED)
TM 11–1520–238–23–2
DOPPLER
NAVIGATION
SYSTEM (DNS)
AN/ASN–137
DATA TRANSFER UNIT NO–GO CPG
COMPARTMENT MESSAGE DISPLAYED
(ADD)
TM 11–1520–238–23–2
TM 1–1520–238–T–3
DATA TRANSFER
UNIT (DTU) (ADD)
DEFOG SHUTOFF VALVE DOES NOT OPERATE
(PILOT ANTI ICE PANEL: CANOPY DEFOG
SWITCH SET TO OFF)
TM 1–1520–238–T–8
CANOPY DEFOG
AND ANTI–ICE
DEFOG SHUTOFF VALVE DOES NOT OPERATE
(PILOT ANTI ICE PANEL: CANOPY DEFOG
SWITCH SET TO ON)
TM 1–1520–238–T–8
CANOPY DEFOG
AND ANTI–ICE
DEU NO–GO RH FAB APPEARS ON HOD
TM 9–1270–221–23
IHADSS
DIGITAL AND ANALOG READOUTS ON VDU DO
NOT AGREE WITH RHI READINGS (RHI: HI
SET KNOB PRESSED AND HELD TO INITIATE
PUSH–TO–TEST OPERATION)
TM 11–1520–238–23–2
RADAR ALTIMETER
SET
DIGITAL READOUTS DO NOT INDICATE 888
(CPG SELECTABLE DIGITAL DISPLAY: TEST
BUTTON PUSHED AND HELD)
TM 1–1520–238–T–7
FUEL QUANTITY
INDICATION/
TRANSFER
DIR ACTUATOR NO–GO TAIL SECTION
APPEARS ON HOD
TM 1–1520–238–T–7
DASE
DIR NORM, LO NORM AND THEN HI NORM
(EACH WITH SOLID CONSTRAINTS BOX) DO
NOT APPEAR ON HOD (LOBL CONSTRAINTS
BOX CENTER ON HOD WITH MAN TRK
SWITCH AND CPG MSL PANEL: LOAL
SWITCH SET TO DIR, LO, THEN HI)
TM 9–1427–475–20
HME SYSTEM
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