# SDR RYNA201209190036

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 19, 2012
- Submitted: September 26, 2012
- Operation: Air carrier
- Aircraft: N772RD
- Make and model: Airbus A330-223
- Registry model: [Airbus A330-223](https://openairdocs.org/model/airbus-a330-223) (OpenAirDocs)
- Aircraft serial: 343
- Aircraft time: 54,822 hours, 10,351 cycles
- System (JASC): [3597 · Oxygen System Wiring](https://openairdocs.org/jasc/3597)
- Part: Wire
- Condition: Damaged
- Location: O2 System
- 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/RYNA201209190036

## Discrepancy

SEATS 1 H AND K O2 MASKS DID NOT DEPLOY ON THE DROP TEST.  REPAIRED AND CORRECTED WIRING AT 1K AND 1H O2 MASK CONTAINER PER SCHM 35-23-03.  ALL MASKS CHECKS OK ON DEPLOYMENT PER 35-21-804A.

---
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.