# SDR DALA1149380655

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 23, 2011
- Submitted: August 24, 2011
- Operation: Air carrier
- Aircraft: [N655DL](https://openairdocs.org/aircraft/N655DL), registered now
- Make and model: Boeing 757232
- Aircraft serial: 24395
- Aircraft time: 74,389 hours, 31,107 cycles
- System (JASC): [3610 · Pneumatic Distribution System](https://openairdocs.org/jasc/3610)
- Part: Shutoff Valve
- Part number: 32144887
- Condition: Seized
- Location: Rt Engine
- Stage of operation: CR
- How discovered: O
- Nature of condition: S
- Precautionary procedure: G
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/DALA1149380655

## Discrepancy

FLIGHT DIVERTED TO SJU DUE TO A LOSS OF PRESSURIZATION.  CABIN O2 MASKS WERE DEPLOYED.  MAINTENANCE REPLACED LEFT ENGINE FAN AIR TEMP SENSOR AND RIGHT ENGINE PRSOV.  ENGINE RUN-UP RESULTED IN NORMAL TEMPERATURES AND PRESSURES.

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