Service difficulty report · Uplock Sensor · Boeing 737824

Difficulty date
September 25, 2023
Submitted
September 27, 2023
Operation
Air carrier
Aircraft
N14235
Make and model
Boeing 737824
Aircraft serial
28947
Aircraft time
71,889 hours, 27,300 cycles
Part
Uplock Sensor
Part number
189929
Condition
Worn
Location
Rh Landing Gear
Stage of operation
CL
How discovered
9
Nature of condition
J
Precautionary procedure
A, J

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

What was found

RIGHT GEAR RED LIGHT GEAR HANDLE UP RAN CHECKLIST EVENTUALLY G OT 3 DOWN AND LOCK PER CREW ON GEAR RETRACTION GOT RED RIGHT GEAR LIGHT ONLY. WITH THEGEAR LEVER IN THE OFF POSITION THEY GOT BOTH THE RED AND GREEN RIGHT GEAR LIGHT. PERFORMED MANUAL EXTENSION SAME RESULT RED AND GREEN RT GEAR LIGHT. AFTER PUTTING THE GEAR LEVER IN THE DOWN POSITION THE RED RIGHT GEAR LIGHT WENT OUT AND THEY HAD ALL THREE GRN LIGHTS. ACCOMPLISHED PSEU BITE PER REF. FIM 32-09 TASK 801. NO FAULTS FOUND . BITE CK. PASSED. REMOVED AND REPLACED PROX SENSORS S0074 R FWD. AND S1017 PER REF. AMM 32-61-21-020-801 WDM 32-64-11-1. OPS CK GOOD NOT ON JACKS SUBTASK 32-61-21-860-022.