# SDR CALA2018070301555

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 30, 2018
- Submitted: July 3, 2018
- Operation: Air carrier
- Aircraft: [N206UA](https://openairdocs.org/aircraft/N206UA), registered now
- Make and model: Boeing 777222
- Aircraft serial: 30212
- Aircraft time: 83,726 hours, 11,206 cycles
- System (JASC): [7520 · Engine Cooling System](https://openairdocs.org/jasc/7520)
- Part: Shutoff Valve
- Part number: 1110V07005
- Part serial: 9199
- Condition: Failed
- Location: Lt Egnine
- Stage of operation: CR
- How discovered: O
- Nature of condition: P
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/CALA2018070301555

## Discrepancy

UPPER LEFT TURBINE VALVE AND BLADE COOLING AIR S/O VALVE REMOVED DUE TO FAILURE. LEFT ENGINE REPLACED (UPPER LEFT) TVBC AIR SHUTOFF VALVE OF LEFT ENGINE. REFRENCE AMM TASK 75-25-01-410-801-NR 2 ENGINE DUCT INSTALLATION NEEDS TO BE ACCOMPLISHED, TASK 36-11-01-400-801-002 AND POWER PLANT REFRENCE TEST, TASK 71-00-00-800-801-N00. ROTABLE PARTS CHANGE WAS INDICATED - TT 1390991 SN OFF 9199 VALVE, AY-TBVC OFF 27-7525-9-9002 9199 ON 27-7525-9-9002 1396 INSTALLED HP/IP MANIFOLD. REFRENCE AMM TASK 36-11-01-400-801-002.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.