# SDR FDEA202605300654

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 30, 2026
- Submitted: June 1, 2026
- Operation: Air carrier
- Aircraft: [N903FD](https://openairdocs.org/aircraft/N903FD), registered now
- Make and model: Boeing 757-2B7
- Registry model: [Boeing 757-2B7](https://openairdocs.org/model/boeing-757-2b7) (OpenAirDocs)
- Aircraft serial: 27124
- Aircraft time: 60,323 hours, 28,755 cycles
- System (JASC): [3510 · Crew Oxygen System](https://openairdocs.org/jasc/3510)
- Part: Stowage Box
- Part number: MXP8913
- Condition: Damaged
- 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/FDEA202605300654

## Discrepancy

WHILE PRE FLIGHTING AC FOUND CAPTS O2 MASK BOX TEST  BUTTON BROKEN. REMOVED AND REPLACED CAPTS 02 MASK STOWAGE BOX PER 757 AMM 35-11-51-4-99. OPS   CHECK GOOD. MVP COMPLETED BY 4706850 O2 CYLINDER OPENED.

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