SDR UALA2013041502568

Service difficulty report · Proximity Sensor · Boeing 757222

Difficulty date: April 14, 2013
Submitted: May 17, 2013
Operation: Air carrier
Aircraft: N579UA
Make and model: Boeing 757222
Aircraft serial: 26697
Aircraft time: 65,507 hours, 23,289 cycles
Engine: Pwa PW2037
System (JASC): 5270 · Door Warning System
Part: Proximity Sensor
Condition: Shorted
Location: R4 Door
Stage of operation: IN
How discovered: V
Nature of condition: P
Precautionary procedure: K

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

What was found

DOOR SLIDE ARMED LIGHT WILL NOT COME ON. TROUBLESHOT AND FOUND WIRE 3682 GROUNDED AND FOUND FWD AND AFT R4 DOOR PROXIMITY SENSORS SHORTED. REMOVED & REPLACED R4 DOOR PROXIMITY SENSORS, OPS CHECKED GOOD IAW AMM 25-66-11 AND WDM 25-66-11.