# SDR IPXA2025041511653

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 15, 2025
- Submitted: April 15, 2025
- Operation: Air carrier
- Aircraft: [N251UP](https://openairdocs.org/aircraft/N251UP), registered now
- Make and model: Doug MD-11F
- Registry model: [Doug MD-11F](https://openairdocs.org/model/mcdonnell-douglas-md-11f) (OpenAirDocs)
- Aircraft serial: 48744
- Aircraft time: 68,210 hours, 16,677 cycles
- System (JASC): [5210 · Passenger/Crew Doors](https://openairdocs.org/jasc/5210)
- Part: Door
- Condition: Stuck
- Location: Zone 800
- Stage of operation: IN
- How discovered: V
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/IPXA2025041511653

## Discrepancy

L1 DOOR WILL NOT OPEN. R&R L1 DOOR UP LIMIT SWITCH IAW AMM 20-50-02. VERIFIED L1 DOOR PNEUMATIC PRESSURE IN GREEN BAND. OPS CHECK OK. DMP REVERSED. PLACARD REMOVED

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