TM 1-1520-238-T-5
7–144
7–50.
ECS AIRFLOW – DOES NOT DECREASE WITH FUEL BST CIRCUIT BREAKER OPEN AND
7–50
ENGINE 1 OPERATING
Tools:
Nomenclature
Part Number
Tool Kit, Electrical
SC518099CLA06
Repairer’s
Multimeter, Digital
AN/PSM-45
Personnel Required:
68X
Armament/Electrical Systems Repairer (2)
References:
TM 1-1520-238-T-6
TM 1-1520-238-23
Equipment Conditions:
Ref
Condition
TM 1-1520-238-23
Access provisions –
R200 panel removed
WARNING
Turn off power before detaching or
attaching wires and connectors. High
current 28 VDC or 115 VAC is present.
Failure to do so could result in death or
serious injury.
Open FUEL BST circuit breaker. Check for
28 VDC at P217–1.
Is voltage present?
YES
Refer to TM 1-1520-238-T-6 to
troubleshoot circuit protection
(dc essential bus – pilot station).
NO
Replace SDC inlet throttle valve
(TM 1-1520-238-23).
END OF TASK
