# SDR UIEA2020121402561

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 14, 2020
- Submitted: December 18, 2020
- Operation: Air carrier
- Aircraft: [N645GT](https://openairdocs.org/aircraft/N645GT), registered now
- Make and model: Boeing 767324
- Aircraft serial: 27393
- Aircraft time: 100,338 hours, 19,327 cycles
- System (JASC): [3510 · Crew Oxygen System](https://openairdocs.org/jasc/3510)
- Part: Oxygen Box
- Part number: MXP147
- Part serial: S16305
- Condition: Faulted
- Location: Cockpit
- Stage of operation: IN
- How discovered: 9
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/UIEA2020121402561

## Discrepancy

CENTER OBSERVER'S OXYGEN BOX RESET SWITCH DOES NOT RESET.  REMOVED AND REPLACED CENTER OBSERVER'S OXYGEN BOX, IAW 767-300 AMM 35-11-51.  OPERATIONS CHECK GOOD.

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