# SDR CA990603027

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 18, 1999
- Submitted: March 26, 2000
- Operation: Air carrier
- Make and model: Doug DC-9-32
- Registry model: [Doug DC-9-32](https://openairdocs.org/model/mcdonnell-douglas-dc-9-32) (OpenAirDocs)
- Engine: Pwa JT8D7A
- System (JASC): [2131 · Cabin Pressure Controller](https://openairdocs.org/jasc/2131)
- Part: Controller
- Condition: Failed
- Location: Cabin Pressure
- Stage of operation: CL
- Nature of condition: J
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/CA990603027

## Discrepancy

(CAN) UNABLE TO PRESSURIZE CABIN DURING TAKEOFF.  CLIMBED TO 7,000 FEET, BUT CABIN PRESSURE WAS UNCONTROLLABLE IN AUTOMATIC MODE, MANUAL CONTROL NOT TRIED.   BOTH NR 1 AND NR 2 CONTROLLERS REPLACED AND AIRCRAFT CHECKED SERVICEABLE.

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