What was found
LEFT ENGINE LOW PRESSURE (LPT) TURBINE CASE COOLING ACTUATOR IS STUCK OR REVERTED TO ITS FAIL-SAFE POSITION. INSPECTED PER MM. ALL NORMAL REPLACED TCC ACTUATOR PER MM AND RIGGED PER MM. RAN ENGINE, ALL NORMAL.
- Difficulty date
- June 25, 2011
- Submitted
- July 20, 2011
- Operation
- Air carrier
- Aircraft
- N797UA
- Make and model
- Boeing 777222
- Aircraft serial
- 26924
- Aircraft time
- 59,265 hours, 8,444 cycles
- Engine
- Pwa PW40903
- Engine time
- 3,200 hours, 12,534 cycles
- System (JASC)
- 7520 · Engine Cooling System
- Part
- Actuator
- Part number
- 54H217
- Part serial
- 41
- Condition
- Faulty
- Location
- Turbine Cooling
- Stage of operation
- NR
- How discovered
- 9
- Nature of condition
- J
- Precautionary procedure
- O
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.