Service difficulty report · Wire · Boeing 757222

Difficulty date
May 19, 2009
Submitted
May 20, 2009
Operation
Air carrier
Aircraft
N530UA
Make and model
Boeing 757222
Aircraft serial
25043
Aircraft time
60,548 hours, 22,412 cycles
Engine
Pwa PW2037
Part
Wire
Part number
W25162520B18
Condition
Burned
Location
Rt Mlg Door
Stage of operation
NR
How discovered
O
Nature of condition
J
Precautionary procedure
O

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

What was found

ALT GEAR EXT MESSAGE. FOUND WIRE PAIR W2516-2520B-18 AND W2516-2520R-18 SHORTED TO SHIELD GROUND AND BURNED AT THE S10370 AREA. MAYBE ABLE TO REPAIR WITHOUT REPLACING WIRE RUN TO D40370P, BUT PLAN ON REPLACING WIRE RUN. REMOVED DAMAGED SECTION OF W2516-2520RB-18 AND SP1244 & SP1248. REPLACED SPLICES. WITH WIRE W4220-0071-18 TIED BACK, THE ALT GEAR EXTENSION CONTROL C/B STILL POPS. COLLAR C/B IN POPPED CONDITION IN PREPARATION FOR FERRY TO DENVER. REPLACED CONN D42018P, C/B DOES NOT POP. ALSO REPLACED ALT GEAR EXTENSION HYD PRESSURE SWITCH. NORMAL OPERATION RESTORED.