# SDR DL72S010867

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 29, 2001
- Submitted: June 5, 2001
- Operation: Air carrier
- Aircraft: [N540DA](https://openairdocs.org/aircraft/N540DA), registered now
- Make and model: Boeing 727232
- Aircraft serial: 22386
- Aircraft time: 60,053 hours, 44,840 cycles
- System (JASC): [2130 · Cabin Pressure Control System](https://openairdocs.org/jasc/2130)
- Part: Valve
- Part number: 39854021
- Part serial: P2227
- Condition: Inoperative
- Location: Lt Pack
- Stage of operation: CR
- 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/DL72S010867

## Discrepancy

LOSS OF PRESSURIZATION IN FLT AT FL 330 CABIN ALT ROSE TO 13000.  MTC FOUND THE LT PACK FWD PACK VALVE INOP.  REPLACED SAME.

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