Service difficulty report · Flap System · Boeing 737824

Difficulty date
July 10, 2024
Submitted
July 15, 2024
Operation
Air carrier
Aircraft
N87527
Make and model
Boeing 737824
Aircraft serial
38701
Aircraft time
45,158 hours, 15,601 cycles
Part
Flap System
Condition
Faulted
Stage of operation
NR
How discovered
O
Nature of condition
J
Precautionary procedure
A

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

What was found

FLAPS WOULD NOT EXTEND BEYOND 1DEGREE. BEYOND 1DEGREE. USED ALT EXTSN-FLAPS STPPD AT 13 NO FAULTS FOUND. ALSO CHECKED FLAP LVR POS IN FSEU PER E(3) CKS GOOD. ALSO PERFORMED LIBRARY TEST 34 IN DCFS FLAPS RIGGING TEST PER AMM 22-11-00-820-804. DEGREES POSITION ARE GOOD FOUND FSEU FAULT TE FLAP UCM. WITH MSG 27-51351. ALTERNATE FLAPS FAULT ARE WORKING AFTER MOVING ALTERNATE ARM SWITH TO OFF THEN BACK TO ARM. T/S PER FIM 27-51 830 RESET BREAKERS P6-2 A8 AND A9. MSG CLEARED NO FAULTS. T/S UP TO STEP D (9) ON INITIAL EVALUATION PERFORMED AND COMPLETED FIM 27-51-TASK 830. ALSO PERFORMED FIM 27-51 TASK - 801 (BITE), -803 (FLAP LOAD RELIEF). UNABLE TO DUPLICATE FAULT. FLAP OPERATION NORMAL.