# SDR P5CA2020061200190

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 10, 2020
- Submitted: June 12, 2020
- Operation: Air carrier
- Aircraft: [N642GT](https://openairdocs.org/aircraft/N642GT), registered now
- Make and model: Boeing 767-3Y0
- Registry model: [Boeing 767-3Y0](https://openairdocs.org/model/boeing-767-3y0) (OpenAirDocs)
- Aircraft serial: 26207
- Aircraft time: 80,359 hours, 21,947 cycles
- System (JASC): [3510 · Crew Oxygen System](https://openairdocs.org/jasc/3510)
- Part: Stowage Box
- Part number: MDX147
- Part serial: 5931
- Condition: Faulty
- Location: Cockpit
- Stage of operation: NR
- How discovered: V
- Nature of condition: O
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/P5CA2020061200190

## Discrepancy

FO OXY MASK DOES NOT TEST PROPERLY. M2: FIRST OBS SEAT INOP DUE TO OXYGEN MASK INOP.  SWAPPED MASK WITH FIRST OBS POSITION IAW AMM 35-11-04, OPS CHECK OK.  NOW FIRST OBS SEAT INOP DUE TO OXYGEN MASK INOP.  REMOVED AND REPLACED FIRST OBSERVERS OXYGEN MASK STORAGE BOX PER AMM 35-11-51, OPS CHECK GOOD.  THIS CLEARS MDDR 129580.

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