Service difficulty report · Sensor · Boeing 7377H4

Difficulty date
August 8, 2021
Submitted
August 9, 2021
Operation
Air carrier
Aircraft
N497WN
Make and model
Boeing 7377H4
Aircraft serial
32479
Aircraft time
56,774 hours, 33,557 cycles
Part
Sensor
Condition
Failed
Location
Lt Wing Te Flap
Stage of operation
CR
How discovered
O
Nature of condition
F
Precautionary procedure
O

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

What was found

TRAILING EDGE FLAPS DID NOT MOVE. ALT FLAP EXTENSION REQUIRED. MAX BRAKING REQUIRED. PSEU ILLUMINATED AT GATE ; 8/8 SPOKE WITH CAPT AND HE SAID NOTICED A NEEDLE SPLIT AT CRUISE. FLAP WOULD NOT DEPLOY FOR LANDING. USED ALT EXTENSION METHOD TO FLAPS 15. L/E DEPLOYED NORMALLY AND FLAPS TO 15. MAX BRAKING REQUIRED / [01] FOUND F/C 27-53251<BR>T/S REF FIM 27-59-802 <BR>R&R #2 FLAP SKEW SENSOR REF AMM 27-59-01 <BR>OPS CHECK GOOD. NO FAULTS FOUND

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