# SDR REXA201200173

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 30, 2012
- Submitted: February 2, 2012
- Operation: Air carrier
- Aircraft: [N8877A](https://openairdocs.org/aircraft/N8877A), registered now
- Make and model: Cndair CL6002B19
- Aircraft serial: 7877
- Aircraft time: 18,810 hours, 16,107 cycles
- System (JASC): [2150 · Cabin Cooling System](https://openairdocs.org/jasc/2150)
- Part: Shutoff Valve
- Condition: Faulty
- Location: Ac Bay
- Stage of operation: CL
- How discovered: O
- Nature of condition: O
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/REXA201200173

## Discrepancy

AIR RETURN FOR LEFT PACK HI PRESSURE CAUTION QRH COMPLETED, UNABLE TO TRANSFER PACK FROM APU BLEEDS TO LEFT 10TH BLEEDS.  REMOVED AND REPLACED LT PRSOV IAW AMM 21-51-43.  OPS CHECKS GOOD.  LT PACK ON ENG BLEEDS, OPS CHECKS GOOD.  OK FOR SVC.

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