# SDR AALA201903059007

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 1, 2019
- Submitted: March 6, 2019
- Operation: Air carrier
- Aircraft: [N9619V](https://openairdocs.org/aircraft/N9619V), registered now
- Make and model: Doug MD 83
- Registry model: [Doug MD 83](https://openairdocs.org/model/mcdonnell-douglas-md-83) (OpenAirDocs)
- Aircraft serial: 53566
- Aircraft time: 58,882 hours, 29,598 cycles
- System (JASC): [2131 · Cabin Pressure Controller](https://openairdocs.org/jasc/2131)
- Part: Controller
- Part serial: 10860176
- Condition: Inoperative
- Location: Nr 1
- Stage of operation: CL
- How discovered: V
- Nature of condition: J
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/AALA201903059007

## Discrepancy

FLIGHT CREW REPORTED THAT BOTH CABIN AUTO PRESSURE CONTROLLERS WERE INOPERATIVE DURING CLIMBOUT.  PRESSURIZATION WENT TO FULL DESCEND, PRESSURIZING BOTH AUTO CONTROLLERS WENT TO MANUALTO CONTROL CABIN. MAINTENANCE PERFORMED A CONTROLLER BITE TEST IAW AMM 21-32-00-101 AND REPLACED THE NR 1 PRESSURE CONTROLLER IAW AMM 32-32-03. OPS CHECKED NORMAL IAW AMM 21-32-00.

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