Service difficulty report · Connector · Boeing 747422

Difficulty date
June 29, 2011
Submitted
August 2, 2011
Operation
Air carrier
Aircraft
N175UA
Make and model
Boeing 747422
Aircraft serial
24382
Aircraft time
82,149 hours, 9,323 cycles
Engine
Pwa PW4056
Part
Connector
Condition
Faulty
Location
Nr 1 Engine
Stage of operation
IN
How discovered
O
Nature of condition
O
Precautionary procedure
O

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

What was found

ENG 1 FIRE LOOP A FAILS CMC TEST, ACTIVE EXISTING FAULT AND STATUS MSG PRESENT. MAINT MSG 26020. NR 1 ENGINE CONNECTOR D8450P REQUIRES REPLACEMENT AS THERE IS A INTERNAL PIN SHORT (CONFIRMED ORD ON SHORT) NEW CONNECTOR ON AOG Y0640, WD 26-11-13. REPLACED CONNECTOR D8450P NEEDS TO BE SECURED AND SAFTIED. T-FITTING ADJACENT TO FLEX CONDUIT ALSO REMOVED FOR ACCESS TO REPLACE CONNECTOR. SECURED CONNECTOR AND INSTALLED T-FITTING. FIRE TEST PASSED AFTER ACP OF SEQ 1492132. OP-CHECK ACP ON SMC 83.