# SDR EISA20010069

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 16, 2001
- Submitted: March 21, 2001
- Operation: Air carrier
- Aircraft: [N721RW](https://openairdocs.org/aircraft/N721RW), registered now
- Make and model: Boeing 727-2M7
- Registry model: [Boeing 727-2M7](https://openairdocs.org/model/boeing-727-2m7) (OpenAirDocs)
- Aircraft serial: 21200
- Aircraft time: 65,535 hours, 34,020 cycles
- System (JASC): [2133 · Pressure Regulator/Outflow Valve](https://openairdocs.org/jasc/2133)
- Part: Outflow Valve
- Part number: 7110033
- Part serial: 21VAL46475
- Condition: Stuck
- Location: Aft Fuselage
- Component: Garrettltd
- 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/EISA20010069

## Discrepancy

AIRCRAFT WOULD NOT PRESSURIZE IN ANY MODE, DURING CLIMB.  AIR TURNBACK.  REMOVED AND REPLACED OUTFLOW VALVE AND PRESSURE CONTROLLER.  OPS CHECK NORMAL.

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