Service difficulty report · Flap System · Boeing 7377H4

Difficulty date
May 6, 2024
Submitted
May 7, 2024
Operation
Air carrier
Aircraft
N497WN
Make and model
Boeing 7377H4
Aircraft serial
32479
Aircraft time
64,849 hours, 38,590 cycles
Part
Flap System
Part number
UNKNOWN
Condition
Locked
Location
Lt Wing
Stage of operation
AP
How discovered
9
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

FLAPS WOULD NOT EXTEND WITH FLAP LEVER EXTENDED IN ANY POSITION. COMPLIED WITH TRAILING EDGE FLAP DISAGREE CHECKLIST FLAPS WOULD NOT EXTEND WITH FLAP LEVER EXTENDED IN ANY POSITION. COMPLIED WITH TRAILING EDGE FLAP DISAGREE CHECKLIST. PERFORMED FSEU BITE CHECK PER AMM 27-51 TASK 801; FOUND FAULT CODE 27-52260 ?TE FLAP SNSR R. PER FIM27-51 TASK 820; PERFORMED WIRES CHECK D728B J7 TO D229 PIN 1 AND D728B J8 TO D229 PIN 2; NO FAULT FOUND. R & R FSEU PER AMM 27-51-01; SYSTEM OPS & BITE CHECK GOOD. NO DEFECT FOUND

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