Service difficulty report · Proximity Sensor · Boeing 737824

Difficulty date
September 17, 2021
Submitted
September 17, 2021
Operation
Air carrier
Aircraft
N11206
Make and model
Boeing 737824
Aircraft serial
30578
Aircraft time
66,576 hours, 23,988 cycles
Part
Proximity Sensor
Condition
Failed
Location
Nr 1 Slat
Stage of operation
CR
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

LE FLAPS TRANSIT LIGHT ILLUMINATED AT FLAPS 10 AND REMAINED ON A T FLAPS 15 UNTIL RETRACTD FSEU BITE CAPTURED LEG-0 SL1 PROX INBOARD MSG 27-81201 INTRMTNT WHEN RUN FLAPS UP & DWN AT UNIT 1 LE MID EXTEND #1 SLAT JERKS AN D AT UNIT 10 LE FULL EXTEND #1 SLAT JERKS ALSO LE DEVICES FLAPS/ SLATS INDICATOR GREEN FULL EXTEND LIGHT WILL NOT COME ON AND LE FLAPS EXTEND INDICATOR REMAINS ON. SUSPECT #1 SLAT IS BINDING REF FIM 27-88 TASK 804. WITH MESSAGE 27-81201 SL1 PROX INBOARD. REMOVED AND REPLACED S1 PROX INBOARD REF AMM 27-88-11. OPS CK NORMAL.