# SDR K11A2018011691650

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 16, 2018
- Submitted: January 18, 2018
- Operation: Air carrier
- Aircraft: N916CK
- Make and model: Doug DC-9-33F
- Registry model: [Doug DC-9-33F](https://openairdocs.org/model/mcdonnell-douglas-dc-9-33f) (OpenAirDocs)
- Aircraft serial: 47291
- Aircraft time: 51,366 hours, 55,918 cycles
- System (JASC): [2130 · Cabin Pressure Control System](https://openairdocs.org/jasc/2130)
- Part: Warning Light
- Condition: Illuminated
- Location: Cabin Pressure
- Stage of operation: DE
- 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/K11A2018011691650

## Discrepancy

DESCENDING TO FL 290,  THE MASTER WARNING LIGHT ILLUMINATED,  SIGNALING A CABIN PRESS ABOVE 10K,  USED OXYGEN MASK AND DESCENDED TO FL 240,   DECLARED AN EMERGENCY, FOLLOWED REMAINING CHECK LIST PROCEDURE UPON REACH 10000, AND LANDED .

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