# SDR 00FDEA00442

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 11, 2000
- Submitted: July 12, 2000
- Operation: Air carrier
- Aircraft: N222FE
- Make and model: Boeing 727233
- Aircraft serial: 20933
- System (JASC): [2131 · Cabin Pressure Controller](https://openairdocs.org/jasc/2131)
- Part: Controller
- Part number: 84011584
- Condition: Inoperative
- Location: Cabin Pressure
- Stage of operation: CL
- How discovered: O
- Nature of condition: J
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/00FDEA00442

## Discrepancy

CABIN ALTITUDE CLIMBING THRU FL 180 WITH POSITIVE DIFFERENTIAL PRESSURE.  COULD NOT DUPLICATE.  REMOVED AND REPLACED CABIN PRESSURE CONTROLLER PRECAUTIONARY MM 21-31-010-4 & MM 21-31-0.  CHECK GOOD FOR SERVICE AT THIS TIME.

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