Service difficulty report · Flap System · Boeing 73776Q

Difficulty date
August 14, 2025
Submitted
August 18, 2025
Operation
Air carrier
Aircraft
N565WN
Make and model
Boeing 73776Q
Aircraft serial
30282
Aircraft time
63,998 hours, 41,819 cycles
Part
Flap System
Condition
Faulted
Location
Zone 500
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

AS WE WERE ABOUT TO SELECT FLAPS 1 (210KTS) WE NOTICED THE FLAP GAUGE INDICATING ZERO - ONE ON RT SIDE. WHEN WE SELECTED F1 THE FLAPS/SLATS DID NOT EXTEND. SELECTED F5, SAME RESULT. RETURNED FLAP HANDLE TO ZERO CHECKED CIRCUIT BREAKERS, ALL IN, AND EXECUTED TRAILING EDGE FLAPS UP LANDING CHECKLIST QRH 9.34-9.36 COMPLIED WITH, VREF 163 VTARGET 168. COMPLIED WITH FSEU BITE IAW FIM 27-51 TASK 801, NO CURRENT FAULTS FOUND. FOUND INTERMITTENT INACTIVE FAULT 27-53257. INSPECTED TRAILING EDGE FLAP DRIVE SYS IAW AMM 27-51-00, NO DEFECTS FOUND. PERFORMED TRAILING EDGE OPS CHECK IAW AMM 27-51-00 NO DEFECTS FOUND. AC OK FOR SERVICE.

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