# SDR IPXA2022061383078

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 13, 2022
- Submitted: June 14, 2022
- Operation: Air carrier
- Aircraft: [N291UP](https://openairdocs.org/aircraft/N291UP), registered now
- Make and model: Doug MD-11F
- Registry model: [Doug MD-11F](https://openairdocs.org/model/mcdonnell-douglas-md-11f) (OpenAirDocs)
- Aircraft serial: 48477
- Aircraft time: 78,460 hours, 13,912 cycles
- System (JASC): [2120 · Air Distribution System](https://openairdocs.org/jasc/2120)
- Part: Cabin Pressure
- Part number: NA
- Part serial: NA
- Condition: Inoperative
- Location: Cabin
- Stage of operation: DE
- How discovered: 9
- Nature of condition: O
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/IPXA2022061383078

## Discrepancy

INSPECTION TYPE:NAON DESCENT CABIN PRESS WAS IN AUTO AND SHOWED OUTFLOW VALVE CLOSED FOLLOWED BY A LVL 1 AVIONICS FAN OVRD MSGPERFORMED T/S PER FIM 21-26-04-00 AND SYS OK. CPC1 AND CPC2 R-T-S PASS PER AMM 21-31-00-501. OK FOR SVC.

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