Service difficulty report · Actuator · Boeing 7378H4

Difficulty date
August 7, 2025
Submitted
August 11, 2025
Operation
Air carrier
Aircraft
N8677A
Make and model
Boeing 7378H4
Aircraft serial
36650
Aircraft time
32,018 hours, 15,661 cycles
Part
Actuator
Condition
Tripped
Location
Flap Sys
Stage of operation
AP
How discovered
O
Nature of condition
J, F
Precautionary procedure
O

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

What was found

ON INITIAL APPROACH FLAPS LOCKED OUT AT 5 DEGREES. PERFORMED A GO AROUND. RECONFIGURED FOR A FLAPS 30 LANDING WITH NORMAL INDICATIONS ON SECOND APPROACH. PERFORMED FSEU BITE PER FIM 27-51 TASK 801. NO FAULTS FOUND. PERFORMED FIM 27-51 TASK 836. FAULT FOUND TO BE INTERMITTENT. PERFORMED INSPECTION OF T/E FLAP TRANSMISSION TORQUE TRIP INDICATORS. FOUND TRANSMISSION 1 AND 8 POPPED. PERFORMED FIM 27-51 TASK 849.OPS CK NORMAL. PERFORMED OTBD FLAP INBOARD AND OUTBOARD BALLSCREW LUB PER AMM 12-22-51 AND FLAP 1 AND 8 FLAP TRANSMISSION OIL REPLACEMENT PER AMM 12-22-51 FOR PRECAUTIONARY. NO DEFECTS FOUND.

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