Service difficulty report · Engine · Boeing 767322

Difficulty date
April 24, 2007
Submitted
May 1, 2007
Operation
Air carrier
Aircraft
N657UA
Make and model
Boeing 767322
Aircraft serial
27112
Aircraft time
61,935 hours, 10,106 cycles
Engine
Pwa PW4060
Engine time
32,384 hours, 4,188 cycles
Part
Engine
Condition
Surges
Location
Nr 2
Stage of operation
DE
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

NR 2 ENGINE SILENT SURGE. [SUP 05-18-07] REPLACED NR 2 ENG ELECTRONIC ENGINE CONTROL PER AMM 73 -21-04. RT ENG PIMU HAD 'EEC CH-A T29 RNG FAIL' REF SMC 2. REF LOG 1 DURING ENG RUN AFTER REPLACE OF EEC FOUND PIMU FAULT 'EEC CH-A T29 RNG FAIL'. REPLACED NR 2 ENG LEFT 2.9 BLEED VALVE THERMOCOUPLE PER AMM 75-32-06, ENGINE CKS GOOD. A/C RETURNED TO SERVICE.