Service difficulty report · Proximity Sensor · Boeing 737724

Difficulty date
November 14, 2018
Submitted
November 14, 2018
Operation
Air carrier
Aircraft
N27733
Make and model
Boeing 737724
Aircraft serial
28800
Aircraft time
63,180 hours, 22,277 cycles
Part
Proximity Sensor
Condition
Faulted
Location
Le Flaps
Stage of operation
CL
How discovered
O
Nature of condition
J
Precautionary procedure
A

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

What was found

LEADING EDGE FLAPS TRANSIT LIGHT STAYS ON 2 PLACED #2 SLAT INDICATION ON MEL 2704E. REMOVED BULBS FROM AMBER INTRANSIT LIGHT ON FWD PANEL. C\W MEL MX PROCEEDURES. FOUND MSG # 27-81202 ON FSEU AND PULLED AND COLLORED C.B. FOR ADD FAULT: 27-81202 INDICATIONS. FLAPS AND SLATS OPS NORMALLY EXCEPT #2 SLAT IN TRANSIT STALL WARNING ASYMMETRY MODE CIRCUIT BREAKER ON P18-2 PER MEL. DISPATCH DESK: 07 NAME: MIKE DATE: 11-NOV-18- NOC DESK: 07 NAME: MIKE DATE: 11-NOV-18- TOMC APPROVED PLACED #2 SLAT INDICATION ON MEL 2704E. REMOVED BULBS FROM AMBER INTRANSIT LIGHT ON FWD PANEL. C\W MEL MX PROCEEDURES. FOUND MSG # 27-81202 (SL2 PROX OUTBD) ON FSEU AND PULLED AND ADD FAULT: 27-81202 TRANSIT INDICATIONS. ON P18-2 PER MEL. FLAPS AND SLATS OPS NORMALLY EXCEPT #2 SLAT IN COLLORED C.B. FOR STALL WARNING ASYMMETRY MODE CIRCUIT BREAKER AHM UPDATE: AFTER VIEWING SCEPTRE DFD REPORT, LOOKS LIKE ITS POSSIBLE ONE OF THE #2 L/E SLAT SENSORS MIGHT BE AT FAULT, PLEASE RUN AMM TASK 27-88-11-700-801, SENSOR LISTED IF NEEDED. INTERAGATED FSEU AND FOUND SL2 O/B PROXIMITY SENSOR FAULTED SHOW ING A NEAR CONDITION. R&R LEADING SLAT PROXIMITY SENSOR ON #2 SLAT, (OUTBOARD) PER AMM 27-88-11. PERFORMED ADJUSTMENT TEST PER AMM 27-88-11-700-801. OP CKS GOOD. ADD EMP:352797