Service difficulty report · Wire Harness · Boeing 757222

Difficulty date
April 16, 2012
Submitted
April 20, 2012
Operation
Air carrier
Aircraft
N532UA
Make and model
Boeing 757222
Aircraft serial
25072
Aircraft time
72,731 hours, 21,998 cycles
Engine
Pwa PW2037
Engine time
64,132 hours, 21,147 cycles
Part
Wire Harness
Condition
Defective
Location
Nr 2 Engine
Stage of operation
CL
How discovered
O
Nature of condition
M
Precautionary procedure
A

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

What was found

NR 2 ENG OVERTEMP, RTFL. PERFORMED BOROSCOPE INSP AS PER MM 72-00-97. CHECKED COMPESSOR BLADES, NO DEFECTS, TURBINE BLADES, COMBUSTER BORE. REPLACED NR 2 ENGINE 14 STAGE CONVERTER VALVE PER MM. ACCOMPLISHED IDT INSPECTION OF NR 2 ENGINE 14 STAGE CONVERTER VALVE. REPLACED EEC PER AMM. CLEANED WATER TRAPS PER AMM. ACCOMPLISHED RII INSPECTION OF NR 2 ENGINE EEC. FOUND THAT THE EEC PRIMARY ACCESS CB WILL NOT RESET TRIPS. REPLACED HARNESS BETWEEN CONNECTOR D1088P AND CONNECTOR D42242P REF WIRING DIAGRAM 73-21-33, TEST OK.