# SDR WX0A2015102972970

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 27, 2015
- Submitted: October 29, 2015
- Operation: Air carrier
- Aircraft: [N878GA](https://openairdocs.org/aircraft/N878GA), registered now
- Make and model: Doug DC-9-83
- Registry model: [Doug DC-9-83](https://openairdocs.org/model/douglas-dc-9-83) (OpenAirDocs)
- Aircraft serial: 53487
- Aircraft time: 37,641 hours, 23,106 cycles
- System (JASC): [3510 · Crew Oxygen System](https://openairdocs.org/jasc/3510)
- Part: Oxygen Mask
- Part number: 11442621
- Part serial: 51005083
- Condition: Faulty
- Location: Cockpit
- Stage of operation: IN
- 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/WX0A2015102972970

## Discrepancy

FIRST OFFICERS OXY MASK DIFFICULT TO INHALE & EXHALE OUT OF, AFTER APPROX 2 SEC OF EXHALE OUTFLOW VLV CLOSES.  R & R FIRST OFFICERS O2 MASK ASSEMBLY IAW AMM 35-10-03.  OPERATIONS CHECKED GOOD.

---
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.