Service difficulty report · Flap System · Boeing 737924ER

Difficulty date
July 8, 2025
Submitted
July 10, 2025
Operation
Air carrier
Aircraft
N36447
Make and model
Boeing 737924ER
Aircraft serial
31650
Aircraft time
41,127 hours, 15,101 cycles
Part
Flap System
Condition
Faulted
Stage of operation
CR
How discovered
O
Nature of condition
J
Precautionary procedure
O

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

What was found

FLAPS INDICATING 5 WITH FLAPS 40 SELECTED RAN FLAP DISAGREE CHKL ST HAPPENED 2000FT 165KTS PERFORMED FSEU BITE TEST WITH NO FAULTS FOUND, LAST FAULT WAS 94 LEGS OLD, PERFORMED TRAILING EDGE FLAPS PRIMARY CONTROL OPERATIONAL CHECK WITH NO FAULTS FOUND AND PERFORMED TRAILING EDGE FLAPS ALTERNATE CONTROL CHECK WITH NO FAULTS FOUND, REF FIM 27-51 TASK 836. SUSPECT POSSIBLE CAUSE (9) OF FIM TASK ( FLAP HANDLE REVERSAL ). PER ESC ARTER READING THE QAR DATA WE MUST PERFORM PHASE 1 FLAP OVERSPEED INSP PER AMM 05-51-08-210-801. PERFORMED PHASE ONE INSPECTION AS REQ. REF. AMM TASK 05-51-08-210-801 NO DEFECTS FOUND AT THIS TIME