# SDR RYNA200907140009

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 12, 2009
- Submitted: July 14, 2009
- Operation: Air carrier
- Aircraft: N763BK
- Make and model: Boeing 767-3Z9
- Registry model: [Boeing 767-3Z9](https://openairdocs.org/model/boeing-767-3z9) (OpenAirDocs)
- Aircraft serial: 23765
- Aircraft time: 79,782 hours, 16,276 cycles
- System (JASC): [2131 · Cabin Pressure Controller](https://openairdocs.org/jasc/2131)
- Part: Controller
- Condition: Malfunctioned
- 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/RYNA200907140009

## Discrepancy

DURING THE CLIMB PHASE OF FLIGHT THE STATUS MESSAGE CABIN ALT AUTO 1 AND CABIN ALT AUTO 2 APPEARED ON THE EICAS.  AIRCRAFT RETURNED TO DFW.  MAINTENANCE PERFORMED FIM 21-31-00 PAGE 105, RESET BOTH SYSTEM CONTROLLERS.  AIRCRAFT OK FOR SERVICE.

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