# SDR USAA2014020300022

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 1, 2014
- Submitted: February 3, 2014
- Operation: Air carrier
- Aircraft: N409US
- Make and model: Boeing 737401
- Aircraft serial: 23879
- Aircraft time: 68,896 hours, 46,150 cycles
- System (JASC): [3520 · Passenger Oxygen System](https://openairdocs.org/jasc/3520)
- Part: Oxygen Mask
- Condition: Malfunctioned
- Location: Cabin
- Stage of operation: CL
- How discovered: O
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/USAA2014020300022

## Discrepancy

OXYGEN MASKS DID NOT DEPLOY AT ROWS 2R, 12R, 16L & 20L DURING PRESSURIZATION EVENT.  PERFORMED SATISFACTORY PASSENGER OXYGEN SYS, LATCH MECHANISM MANUAL ACTUATION TEST.  ALL OXYGEN MASKS DEPLOYED PROPERLY.

---
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.