TM 1-1520-238-T-5
Change 1
7–145
7–51.
FUEL DOES NOT TRANSFER – WITH ENGINE 1 BLEED AIR SUPPLYING PAS
7–51
MANIFOLD
Tools:
Nomenclature
Part Number
Tool Kit, Aircraft
SC518099CLA01
Mechanic’s
Personnel Required:
67R
Attack Helicopter Repairer
152FG
Maintenance Test Pilot
References:
TM 1-1520-238-T-7
TM 1-1520-238-CL
TM 1-1520-238-23
Equipment Conditions:
Ref
Condition
TM 1-1520-238-CL
Engine 1 operating
TM 1-1520-238-23
Access provisions –
L325 door opened
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.
1. Check for airflow at ECS vents.
Is airflow present?
YES
Go to step 2.
NO
Go to step 3.
2. Check pas manifold for air leaks.
Are air leaks present?
YES
Replace leaking component
(TM 1-1520-238-23).
NO
Replace pressure regulator
valve (TM 1-1520-238-23). If
trouble persists refer to
TM 1-1520-238-T-7 to
troubleshoot fuel quantity
indication/transfer system.
3. Have assisitant check for high volume airflow at
air particle separator overboard exhaust.
Is airflow present?
YES
Replace SDC check valve
(TM 1-1520-238-23).
NO
Replace engine bleed air shutoff
valve (TM 1-1520-238-23).
END OF TASK
