# SDR 9700939886

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 18, 1997
- Submitted: March 26, 2000
- Operation: Air carrier
- Aircraft: [N600TR](https://openairdocs.org/aircraft/N600TR), registered now
- Make and model: Doug DC-9-51
- Registry model: [Doug DC-9-51](https://openairdocs.org/model/mcdonnell-douglas-dc-9-51) (OpenAirDocs)
- Aircraft serial: 47783
- System (JASC): [2131 · Cabin Pressure Controller](https://openairdocs.org/jasc/2131)
- Part: Controller
- Condition: Malfunctioned
- Location: Cabin
- 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/9700939886

## Discrepancy

AFTER TAKEOFF, CABIN PRESSURE FLUCTUATED PLUS OR MINUS 1,500 FT SELECTED MANUAL CONTROL AND RETURNED TO MSP.  FLIGHT LANDED WITHOUT INCIDENT.  REPLACED AMPLIFIER AND PRESSURE CONTROL, OPERATIONAL CHECK OK.

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