# SDR YYFA201210/21002

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 22, 2012
- Submitted: March 25, 2013
- Operation: Air carrier
- Aircraft: N836NK
- Make and model: Doug DC-9-83
- Registry model: [Doug DC-9-83](https://openairdocs.org/model/douglas-dc-9-83) (OpenAirDocs)
- Aircraft serial: 53045
- Aircraft time: 42,865 hours, 29,791 cycles
- System (JASC): [2130 · Cabin Pressure Control System](https://openairdocs.org/jasc/2130)
- Part: Cabin Pressure
- Condition: Failed
- Location: Cabin
- Stage of operation: CR
- 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/YYFA201210%2F21002

## Discrepancy

UNABLE TO GET PRESSURIZATION STABILIZED IN CRUISE, CABIN WOULD CLIMB ON DESCENT & OR- 500PM IN MANUAL.  CAUSED 1 PILOT TO BE COMPLETELY DEVOTED TO CONTROLLING THE PRESS CABIN WAS ALMOST TOTALLY UNCONTROLLABLE DURING DESCENT.

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