Service difficulty report · Sensor · Boeing 737823

Difficulty date
October 16, 2017
Submitted
October 20, 2017
Operation
Air carrier
Aircraft
N946AN
Make and model
Boeing 737823
Aircraft serial
30600
Aircraft time
52,164 hours, 21,329 cycles
Part
Sensor
Part number
90004212
Condition
Faulty
Location
Lt Wing Te Flaps
Stage of operation
AP
How discovered
O
Nature of condition
J
Precautionary procedure
L

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

What was found

LEADING EDGE TRAILING FLAP MALFUNCTION INDICATION ON APPROACH. EMERGENCY DECLARED. ABORTED THE APPROACH AND WENT AROUND FOR A SECOND ATTEPMPT. THE CREW RAN THE QRH PROCEDURES AND LANDED FLAPS UP WITHOUT INCIDENT. FSEU BITE SHOWED FAULT CODE 27-53250 (FLAP 1 SKEW). REMOVED AND REPLACED FLAP SKEW DETECTION SENSOR T525 PER FIM TASK 27-59-00-810-801. OPERATIONAL CHECK GOOD. AIRCRAFT WAS GROUNDED.