SDR IPXA201805189494

Service difficulty report · Uplock Sensor · Boeing 74744AF

Difficulty date: May 9, 2018
Submitted: May 18, 2018
Operation: Air carrier
Aircraft: N576UP
Make and model: Boeing 74744AF
Aircraft serial: 35665
Aircraft time: 37,441 hours, 5,637 cycles
System (JASC): 3260 · Landing Gear Position and Warning
Part: Uplock Sensor
Condition: Broken
Location: Rt Mlg
Stage of operation: IN
How discovered: 9
Nature of condition: O
Precautionary procedure: K

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

What was found

DURING REPLACEMENT OF THE RT BODY GEAR ALT UPLOCK SENSOR. FOUND PRI SENSOR HEAD BROKEN. TROUBLESHOT IAW FIM 32-61 TASK 898 & 878. RIGHT BODY GEAR PRI SENSOR FAULT, SWAPPED RT BODY GEAR PRI UPLOCK SENSOR FROM RT BODY GEAR ALT UPLOCK SENSOR S1637, REPLACED THE RT BODY GEAR UPLOCK SENSOR & CMC PSEU TEST PASSED IAW AMM 32-61-11/201, AND AMM 32-09-03/501.

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