TM 1–1520–238–T–2
2–59
Table 2–1.
Master Failure Symptom Index (cont)
Failure Symptom
MOC
Reference
ECS BLADE DE–ICE CONTR CIRCUIT
BREAKER (CB83) 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 (DC
ESSENTIAL BUS 3 –
PILOT STATION)
ECS CAB CIRCUIT BREAKER (CB76) DOES
NOT STAY CLOSED (CPG AUX/ANTI–ICE
PANEL: STBY FAN SWITCH SET TO STBY
FAN)
TM 1–1520–238–T–8
ENVIRONMENTAL
CONTROL SYSTEM
ECS CAB CIRCUIT BREAKER (CB76) DOES
NOT STAY CLOSED (PILOT ECS PANEL:
STBY FAN SWITCH SET TO STBY FAN)
TM 1–1520–238–T–8
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 1–1520–238–T–6
CIRCUIT
PROTECTION
SYSTEM (DC
EMERGENCY BUS –
PILOT STATION)
ECS CANOPY ANTI–ICE CIRCUIT BREAKER
(CB78) DOES NOT STAY CLOSED (PILOT
ANTI–ICE PANEL: CANOPY HTR SWITCH
SET TO ON)
TM 1–1520–238–T–8
CANOPY DEFOG
AND ANTI–ICE
ECS CANOPY ANTI–ICE CIRCUIT BREAKER
(CB78) 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)
ECS CANOPY ANTI–ICE CONTR CIRCUIT
BREAKER (CB70) DOES NOT STAY CLOSED
(PILOT ANTI–ICE PANEL: CANOPY HTR
SWITCH SET TO ON)
TM 1–1520–238–T–8
CANOPY DEFOG
AND ANTI–ICE
ECS CANOPY ANTI–ICE CONTR CIRCUIT
BREAKER (CB70) 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 (DC
ESSENTIAL BUS 1 –
PILOT STATION)
ECS ENG ANTI–ICE CIRCUIT BREAKER (CB67)
DOES NOT STAY CLOSED (APU OPERATING)
TM 1–1520–238–T–8
ENGINE ANTI–ICE
