# SDR CALA2016111100872

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 11, 2016
- Submitted: November 12, 2016
- Operation: Air carrier
- Aircraft: [N518UA](https://openairdocs.org/aircraft/N518UA), registered now
- Make and model: Boeing 757222
- Aircraft serial: 24871
- Aircraft time: 89,390 hours, 25,863 cycles
- System (JASC): [2130 · Cabin Pressure Control System](https://openairdocs.org/jasc/2130)
- Part: Clamp
- Condition: Broken
- Location: Air Supply
- Stage of operation: CR
- How discovered: O
- Nature of condition: O
- Precautionary procedure: B, A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/CALA2016111100872

## Discrepancy

AUTO 1 AND AUTO 2  COULD NOT MAINTAIN NORMAL CABIN ALT.  OUTFLOW VALVE FULL CLOSE REPLACED AIR SPLY CK VLV PRECAUTIONARY; BROKEN CLAMP AROUND THE AIR SPLY CK VLV REF AMM 21-51-15.

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