SDR AALA202211252313

Service difficulty report · Sensor · Boeing 737823

Difficulty date: November 23, 2022
Submitted: November 25, 2022
Operation: Air carrier
Aircraft: N323SG
Make and model: Boeing 737823
Aircraft serial: 44474
Aircraft time: 5,571 hours, 2,117 cycles
System (JASC): 2751 · Trailing Flap Position Indicating System
Part: Sensor
Condition: Inoperative
Location: Te Flaps
Stage of operation: IN
How discovered: V
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

AIRCRAFT WAS GROUNDED: FLAPS DID NOT GO TO COMMAND POSITION FOR LANDING. AIRCRAFT DECLARED AN EMERGENCY INTO JFK. LANDED FLAPS LESS THAN 1. LEADING EDGE EXTENDED. TOUCHDOWN SPEED APPROXIMATELY 172 KNOTS DECLARED EMERGENCY. LANDING UNEVENTFUL. EMERGENCY EQUIPMENT GAVE OK TO GO TO GATE. USED MAX AUTO BRAKE. FOUND MAINTENANCE MESSAGE 27-53251. REPLACED TRAILING EDGE FLAP SKEW SENSOR NUMBER 2 PER AMM 27-59-01. LEADING EDGE AND TRAILING EDGE FLAPS OPERATIONS CHECK NORMAL.