# SDR UALA2013071204876

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 12, 2013
- Submitted: July 18, 2013
- Operation: Air carrier
- Aircraft: [N213UA](https://openairdocs.org/aircraft/N213UA), registered now
- Make and model: Boeing 777222
- Aircraft serial: 30219
- Aircraft time: 47,046 hours, 10,125 cycles
- Engine: Pwa PW4077
- System (JASC): [7321 · Fuel Control/Turbine Engines](https://openairdocs.org/jasc/7321)
- Part: Actuator
- Part number: 54H217
- Part serial: 101
- Condition: Faulty
- Location: Posit 1
- Stage of operation: NR
- How discovered: 9
- Nature of condition: J
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/UALA2013071204876

## Discrepancy

TURBINE CASE CLOGGED AIR VALVE ACTUATOR HPT POSITION FEEDBACK IS OUT OF RANGE ILLUMINATES FREQUENTLY.   TCC OPERATES OK,  BUT THIS LOWER LEVEL MESSAGE CAN CAUSE FALSE FDE 75-60661 "TURB CASE COOL HPT".  WIRING CONNECTOR CHECKED GOOD.  REPLACED TCC AIR VALVE ACTUATOR IAW MM 75-24-05.  NO LEAKS NOTED.  RAN ENGINE,  FAILED ON DRY MOTOR TESTING.

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