TM 1–1520–238–T–2
Change 4
2–122.1
Table 2–1.
Master Failure Symptom Index (cont)
Failure Symptom
MOC
Reference
NAV HSI CIRCUIT BREAKER (CB43) DOES NOT
STAY CLOSED (PILOT ELEC PWR PANEL:
BATT/EXT PWR SWITCH SET TO EXT PWR)
TM 1–1520–238–T–6
CIRCUIT
PROTECTION
SYSTEM (AC
ESSENTIAL BUS 1 –
PILOT STATION)
NAV HSI CIRCUIT BREAKER DOES NOT STAY
CLOSED
TM 11–1520–238–23–2
NAVIGATION
INSTRUMENTS
NAV TOP LEVEL POWER ON PRESENT
POSITION PAGE IS DISPLAYED
TM 11–1520–238–23–2
DOPPLER
NAVIGATION
SYSTEM (DNS)
AN/ASN–137
NAV VDU CIRCUIT BREAKER (CB91) DOES
NOT STAY CLOSED (PILOT ELEC PWR
PANEL: BATT/EXT PWR SWITCH SET TO EXT
PWR)
TM 1–1520–238–T–6
CIRCUIT
PROTECTION
SYSTEM (AC
ESSENTIAL BUS 2 –
PILOT STATION)
ND/NU SWITCH SET TO ND BOTTOM PISTON
FAILS TO MOVE STABILATOR
TM 1–1520–238–T–7
STABILATOR
ND/NU SWITCH SET TO ND TOP PISTON FAILS
TO MOVE STABILATOR
TM 1–1520–238–T–7
STABILATOR
ND/NU SWITCH SET TO NU TOP PISTON FAILS
TO MOVE STABILATOR (BOTTOM STAB
ACTUATOR EXTENDS FULLY)
TM 1–1520–238–T–7
STABILATOR
ND/NU SWITCH SET TO NU BOTTOM PISTON
FAILS TO MOVE STABILATOR (TOP STAB
ACTUATOR EXTENDS FULLY)
TM 1–1520–238–T–7
STABILATOR
NGB 1 OIL PRESSURE DISPLAY IS NOT 00 LB
TM 1–1520–238–T–4
DRIVE SYSTEM
DYNAMIC
NGB 1 OIL TEMPERATURE DISPLAY DOES NOT
INDICATE –31 C
TM 1–1520–238–T–4
DRIVE SYSTEM
DYNAMIC
NGB 2 OIL PRESSURE DISPLAY IS NOT 00 LB
TM 1–1520–238–T–4
DRIVE SYSTEM
DYNAMIC
NGB 2 OIL TEMPERATURE DISPLAY DOES NOT
INDICATE –31 C
TM 1–1520–238–T–4
DRIVE SYSTEM
DYNAMIC
