# SDR UPS07449324

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 5, 2007
- Submitted: March 7, 2007
- Operation: Air carrier
- Aircraft: N672UP
- Make and model: Boeing 747123
- Aircraft serial: 20324
- System (JASC): [3231 · Landing Gear Door Retract Section](https://openairdocs.org/jasc/3231)
- Part: Door
- Condition: Malfunctioned
- Location: Nlg
- Stage of operation: CR
- 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/UPS07449324

## Discrepancy

NOSE GEAR DOORS OPENING DURING FLIGHT.  REMOVED AND REPLACED NOSE GEAR DOOR SEQUENCE VALVE.  OPS CHECK NORMAL.  OK FOR CONTINUED SERVICE.

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