# SDR IPXA2019052442439

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 22, 2019
- Submitted: May 29, 2019
- Operation: Air carrier
- Aircraft: [N294UP](https://openairdocs.org/aircraft/N294UP), registered now
- Make and model: Doug MD-11F
- Registry model: [Doug MD-11F](https://openairdocs.org/model/mcdonnell-douglas-md-11f) (OpenAirDocs)
- Aircraft serial: 48472
- Aircraft time: 86,225 hours, 14,942 cycles
- System (JASC): [2133 · Pressure Regulator/Outflow Valve](https://openairdocs.org/jasc/2133)
- Part: Drive Assy
- Condition: Faulty
- Location: Outflow Valve
- Stage of operation: DE
- How discovered: O
- Nature of condition: J
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/IPXA2019052442439

## Discrepancy

INSPECTION TYPE:N/A AVIONICS FAN OVRD AVIONICS FAN CAME ON IN THE DESCENT#1 CPC SHOWS #1 MOTOR OFV FAULT REPLACED OUTFLOW VALVE DRIVE ASSY REF AMM 21-31-20-201 CHECKS GOOD DURING CABIN PRESSURE DECAY CHECK FOUND FWD SECTION OF MAIN CARGO DOOR SEAL OUT OF RETAINER REINSTALLED SEAL ACCOMPLISHED CABIN PRESSURE DECAY CHECK REF AMM 21-00-00-501 DECAY TIME 235 SEC FROM 7.0 TO.

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