Service difficulty report · Actuator · Boeing 7378

Difficulty date
June 17, 2025
Submitted
June 19, 2025
Operation
Air carrier
Aircraft
N37351
Make and model
Boeing 7378
Aircraft serial
67623
Aircraft time
3,797 hours, 1,322 cycles
Part
Actuator
Part number
7340753002
Condition
Faulted
Location
Apu Inlet
Stage of operation
IN
How discovered
V
Nature of condition
O
Precautionary procedure
K

As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.

What was found

FOUND APU INLET ACTUATOR OPERATING INTERMITTANT WITH NO HARD FAULTS. INSPECTED AREA AND FOUND BURNT WIRE OR OVERHEAT SMELL COMING FROM ACTUATOR. REMOVED APU AIR INLET DOOR ACTUATO. REF: AMM 49-15-31-000-801. ACTUATOR P/N OFF: 734-07530-03. S/ N 2057 STARTED TO INSTALL APU AIR INLET DOOR ACTUATOR UP TO STEPS 3 G 5 K. PARTS USED: 00-0583-3-6461, QTY :1 42-4915-9-0001, QTY :1 FINISHED INSTALLING APU ACTUATOR I.A.W A.M.M 49-15-31-400-801.OPS CHECK GOOD

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