# SDR ABXA20260615262

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 15, 2026
- Submitted: June 16, 2026
- Operation: Air carrier
- Aircraft: [N774AX](https://openairdocs.org/aircraft/N774AX), registered now
- Make and model: Boeing 767281
- Aircraft serial: 22789
- Aircraft time: 74,815 hours, 47,758 cycles
- System (JASC): [3510 · Crew Oxygen System](https://openairdocs.org/jasc/3510)
- Part: Stowage Box
- Part number: MXP10602
- Part serial: 17892
- Condition: Defective
- Location: Oxygen Mask
- Stage of operation: IN
- How discovered: V
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ABXA20260615262

## Discrepancy

SUPERNUMERARY LEFT SEAT OXYGEN MASK BOX RESET TAB INOP.  REMOVED AND REPLACED SUPERNUMERARY LEFT HAND SEAT OXYGEN MASK BOX IAW B767 35-11-51. OPS AND LEAK CHECK GOOD. NO REACTIVATION PROCEDURE REQUIRED. A/C RETURNED TO SERVICE.

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