# SDR UALA2011020400597

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 3, 2011
- Submitted: February 21, 2011
- Operation: Air carrier
- Aircraft: N420UA
- Make and model: Airbus A320-232
- Registry model: [Airbus A320-232](https://openairdocs.org/model/airbus-a320-232) (OpenAirDocs)
- Aircraft serial: 489
- Aircraft time: 56,628 hours, 20,950 cycles
- Engine: Iae V2527A5
- System (JASC): [3520 · Passenger Oxygen System](https://openairdocs.org/jasc/3520)
- Part: Latch
- Condition: Obstructed
- Location: Oxygen Mask
- 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/UALA2011020400597

## Discrepancy

DURING DROP CHECK OF PASS O2 MASKS.  FOUND MASKS IN AFT LAV DID NOT DEPLOY. FOUND AND CLEARED OBSTRUCTION IN LATCHING MECHANISM. OPS CHECKED GOOD REF MM.

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