TM 11520238T2
259
Table 21.
Master Failure Symptom Index (cont)
Failure Symptom
MOC
Reference
ECS BLADE DEICE CONTR CIRCUIT
BREAKER (CB83) DOES NOT STAY CLOSED
(PILOT ELEC PWR PANEL: BATT/EXT PWR
SWITCH SET TO EXT PWR)
TM 11520238T6
CIRCUIT
PROTECTION
SYSTEM (DC
ESSENTIAL BUS 3
PILOT STATION)
ECS CAB CIRCUIT BREAKER (CB76) DOES
NOT STAY CLOSED (CPG AUX/ANTIICE
PANEL: STBY FAN SWITCH SET TO STBY
FAN)
TM 11520238T8
ENVIRONMENTAL
CONTROL SYSTEM
ECS CAB CIRCUIT BREAKER (CB76) DOES
NOT STAY CLOSED (PILOT ECS PANEL:
STBY FAN SWITCH SET TO STBY FAN)
TM 11520238T8
ENVIRONMENTAL
CONTROL SYSTEM
ECS CAB CIRCUIT BREAKER (CB76) DOES
NOT STAY CLOSED (PILOT ELEC PWR
PANEL: BATT/EXT PWR SWITCH SET TO EXT
PWR)
TM 11520238T6
CIRCUIT
PROTECTION
SYSTEM (DC
EMERGENCY BUS
PILOT STATION)
ECS CANOPY ANTIICE CIRCUIT BREAKER
(CB78) DOES NOT STAY CLOSED (PILOT
ANTIICE PANEL: CANOPY HTR SWITCH
SET TO ON)
TM 11520238T8
CANOPY DEFOG
AND ANTIICE
ECS CANOPY ANTIICE CIRCUIT BREAKER
(CB78) DOES NOT STAY CLOSED (PILOT
ELEC PWR PANEL: BATT/EXT PWR SWITCH
SET TO EXT PWR)
TM 11520238T6
CIRCUIT
PROTECTION
SYSTEM (AC
ESSENTIAL BUS 2
PILOT STATION)
ECS CANOPY ANTIICE CONTR CIRCUIT
BREAKER (CB70) DOES NOT STAY CLOSED
(PILOT ANTIICE PANEL: CANOPY HTR
SWITCH SET TO ON)
TM 11520238T8
CANOPY DEFOG
AND ANTIICE
ECS CANOPY ANTIICE CONTR CIRCUIT
BREAKER (CB70) DOES NOT STAY CLOSED
(PILOT ELEC PWR PANEL: BATT/EXT PWR
SWITCH SET TO EXT PWR)
TM 11520238T6
CIRCUIT
PROTECTION
SYSTEM (DC
ESSENTIAL BUS 1
PILOT STATION)
ECS ENG ANTIICE CIRCUIT BREAKER (CB67)
DOES NOT STAY CLOSED (APU OPERATING)
TM 11520238T8
ENGINE ANTIICE
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