# SDR 2001UALA01321

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 7, 2001
- Submitted: July 20, 2001
- Operation: Air carrier
- Aircraft: N983UA
- Make and model: Boeing 737291
- Aircraft serial: 21641
- Aircraft time: 59,200 hours, 50,332 cycles
- System (JASC): [2130 · Cabin Pressure Control System](https://openairdocs.org/jasc/2130)
- Part: Seal
- Condition: Leaking
- Location: Cabin
- Component: -
- Stage of operation: NR
- 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/2001UALA01321

## Discrepancy

UNSCHEDULED LANDING DUE TO CABIN PRESSURIZATION PROBLEMS.  *S/D*  DURING SINGLE PACK OPERATION, THE AIRCRAFT COULD NOT MAINTAIN PRESSURE.  THE NOSE LANDING GEAR VIEW PORT HAD ALL SEALS REPLACED.

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