TM 1–1520–238–T–2
Change 5
2–56.1/(2–56.2 blank)
Table 2–1.
Master Failure Symptom Index (cont)
Failure Symptom
MOC
Reference
DIR RIPL DOES NOT APPEAR ON HOD (CPG
MSL PANEL: MODE SWITCH SET TO RIPL
AND AND LOAL SWITCH SET TO DIR) (CPG
FCP: MSL CHAN SEL SWITCH SET TO LWR)
TM 9–1427–475–20
HME SYSTEM
DISPLAY SYMBOLOGY APPEARS ON HOD
TM 9–1230–476–20–2
MULTIPLEX
SUBSYSTEM
DISPLAY SYMBOLOGY DOES NOT APPEAR
ON HOD (CPG FCP: MUX SWITCH SET TO
PRI) (PRI BUS DETACHED)
TM 9–1230–476–20–2
MULTIPLEX
SUBSYSTEM
DISPLAY SYMBOLOGY DOES NOT APPEAR ON
HOD (CPG FCP: MUX SWITCH SET TO PRI)
(SEC BUS DETACHED)
TM 9–1230–476–20–2
MULTIPLEX
SUBSYSTEM
DIST DATA IS NOT 25.0 KM (+0.1 KM OR BRG
DATA IS NOT 350 DEG (CDU: VAB NEXT TO
DISPLAYED WORDS FLY TO PRESSED AND
NUMBER 1 ENTERED ON SCRATCH PAD)
TM 11–1520–238–23–2
DOPPLER
NAVIGATION
SYSTEM (DNS)
AN/ASN–137
DL56789012 IS NOT DISPLAYED ON LEFT AND
RIGHT DISPLAYS (CPG DPLR NAV PANEL:
DISPLAY SWITCH SET TO DEST/TGT, DEST
DISP THUMBWHEEL SET TO P AND
KEYBOARD KEYS ACTIONED)
TM 11–1520–238–23–2
DOPPLER
NAVIGATION
SYSTEM (DNS)
AN/ASN–128
DNS DOES NOT APPEAR ON SCRATCH PAD
(CDU: LETTERS DNS KEYED INTO
KEYBOARD)
TM 11–1520–238–23–2
DOPPLER
NAVIGATION
SYSTEM (DNS)
AN/ASN–137
DNS NO–GO MESSAGE DISPLAYED ON CDU
AND SIGNAL DATA CONV–COMP NO–GO LH
AFT CATWALK FD/LS MESSAGE
TM 11–1520–238–23–2
DOPPLER
NAVIGATION
SYSTEM (DNS)
AN/ASN–137 (ADD)
DNS SDCC LT BUS NO–GO LH AFT CATWALK
(ADD)
TM 9–1230–476–20–2
MULTIPLEX
SUBSYSTEM (ADD)
DNS SDCC RT BUS NO–GO LH AFT CATWALK
(ADD)
TM 9–1230–476–20–2
MULTIPLEX
SUBSYSTEM (ADD)
