Service difficulty report · Proximity Sensor · Boeing 737924ER

Difficulty date
April 16, 2024
Submitted
April 18, 2024
Operation
Air carrier
Aircraft
N38417
Make and model
Boeing 737924ER
Aircraft serial
31665
Aircraft time
49,550 hours, 17,515 cycles
Part
Proximity Sensor
Part number
189929
Condition
Failed
Location
Te Flaps
Stage of operation
CL
How discovered
O
Nature of condition
F
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 AND NO 3 LEADING EDGE FLAP LIGHT REMAINED ON WHEN FLAPS RETRACTED. UPON FURTHER REVIEW REQUEST MX TO REMOVE AND REPLACE THE LE FLAP #3 EXTEND SENSOR (S173) REF AMM 27-88-11. BITED FSEU IAW FIM 27-51 TASK 801 AND FOUND F3 PROX RETRACT. R/R FLAP 3 RETRACT PROX SENSOR(S172) IAW AMM 27-88-11. WIRES NEEDS TO BE SECURED WITH LACING AND NEEDS AN OPS CHECK. CARRIED BY ELB PREFORMED LAND VERIFY TEST REF AMM 22-11-00. AIRCRAFT FULL AUTOLAND NO FAULTS NOTED SECURED F3 PROX SWITCH WIRES. OPS CHECK GOOD REF AMM 27-88-11.