# SDR CALA2012011600020

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 12, 2012
- Submitted: January 16, 2012
- Operation: Air carrier
- Aircraft: [N29124](https://openairdocs.org/aircraft/N29124), registered now
- Make and model: Boeing 757224
- Aircraft serial: 27565
- Aircraft time: 52,410 hours, 14,322 cycles
- System (JASC): [3520 · Passenger Oxygen System](https://openairdocs.org/jasc/3520)
- Part: Latch
- Condition: Dirty
- Location: Cabin Oxygen
- Stage of operation: UK
- How discovered: C
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/CALA2012011600020

## Discrepancy

OXYGEN MASK ABOVE SEAT ROW 23ABC DID NOT DEPLOY DURING THE CABIN ALTITUDE WARNING SWITCH FUNCTIONAL TEST.  CHECKED DOOR AND LATCH MECHANISM FOR PROPER OPERATION.  CLEANED LATCHES, REPACKED MASKS REF AMM 35-21-05 OPS.  CHECK GOOD.

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