Service difficulty report · Uplock Sensor · Boeing 737322

Difficulty date
October 13, 2008
Submitted
January 18, 2010
Operation
Air carrier
Aircraft
N346UA
Make and model
Boeing 737322
Aircraft serial
24250
Aircraft time
58,203 hours, 32,521 cycles
Engine
Cfmint CFM563C1
Part
Uplock Sensor
Condition
Faulty
Location
Lt Mlg
Stage of operation
CL
How discovered
O
Nature of condition
N
Precautionary procedure
A

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

What was found

LT MLG UNSAFE "RED" LIGHT ILLUMINATED. RTFL FOUND SENSOR S72 GROUND WIRE OPEN. REPLACED S72 UP AND LOCKED SAFETY SENSOR. RESISTANCE CK'D GOOD. INSPECTED SENSOR INSTALLATION. ACCMP GEAR EXT RETRACT TEST. TEST OK FOR SERVICE.