Service difficulty report · Sensor · Boeing 737724

Difficulty date
May 27, 2025
Submitted
May 30, 2025
Operation
Air carrier
Aircraft
N17753
Make and model
Boeing 737724
Aircraft serial
30463
Aircraft time
68,998 hours, 26,792 cycles
Part
Sensor
Condition
Faulted
Location
Zone 500 Le Flap
Stage of operation
NR
How discovered
O
Nature of condition
N
Precautionary procedure
O

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

What was found

L FLAP TRANSIT LIGHT ON AT CRUISE.SLAT 2 AMBER QRH DID NOT CLEAR LWR TOCS LOG CREATED AND LOGPAGE LOCKED BY TOMC FOUND FAULT SL2 PROX OUTBOARD FAULT MX MESSAGE 27-81202. FAULT CURRENTY LATCHED. OPERATED FLAPS/SLATS. WITH FLAP HANDLE SET TO POSITION 10-40 INDICATION FOR SLAT 2 NORMAL AND THE AMBER IN TRANSIT LIGHT IS OFF. WHEN FLAP HANDLE IS SET AT 0-5 INDICATION FOR SLAT 2 IS ERRATIC AND JUMPS FROM IN TRANSIT TO FULL EXTEND AND THEN SETTLES BACK TO AMBER IN TRANSIT. FOUND OPEN CURCUIT IN SENSOR S996 BETWEEN BLUE/RED AND BLUE/YELLOW LEGS. REPLACED SENSOR S996REF MM27-88-11-400-802. REQUIRES OPS CHECKS. UNLOCKING LOG PAGE FOR CORRECTIVE ACTION PERFORMED OPS CHECKS REF AMM 27-88-11, OPS CHECKS GOOD AT THIS TIME. FAULT CLEARED