# SDR 2007UALA04289

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 17, 2007
- Submitted: October 26, 2007
- Operation: Air carrier
- Aircraft: [N490UA](https://openairdocs.org/aircraft/N490UA), registered now
- Make and model: Airbus A320-232
- Registry model: [Airbus A320-232](https://openairdocs.org/model/airbus-a320-232) (OpenAirDocs)
- Aircraft serial: 1728
- Aircraft time: 18,802 hours, 8,263 cycles
- Engine: Iae V2527A5
- System (JASC): [5320 · Fuselage Miscellaneous Structure](https://openairdocs.org/jasc/5320)
- Part: Structure
- Part number: MXP401600U
- Condition: Faulty
- Location: Oxygen Mask Box
- Stage of operation: IN
- How discovered: C
- Nature of condition: L
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/2007UALA04289

## Discrepancy

F/O SIDE O2 PRESS TO TEST INOP DUE TO PLUNGER NOT ENGAGED TO DOOR MECHANISM MASK WORKS FINE.  REPLACED FO O2 MASK BOX, SERVICED SYSTEM.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.