# SDR AALA202212055914

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 3, 2022
- Submitted: December 5, 2022
- Operation: Air carrier
- Aircraft: [N801AC](https://openairdocs.org/aircraft/N801AC), registered now
- Make and model: Boeing 787-8
- Registry model: [Boeing 787-8](https://openairdocs.org/model/boeing-787-8) (OpenAirDocs)
- Aircraft serial: 40619
- Aircraft time: 27,761 hours, 3,922 cycles
- System (JASC): [3510 · Crew Oxygen System](https://openairdocs.org/jasc/3510)
- Part: Stowage Box
- Part number: MXP8066
- Part serial: SE67544
- Condition: Leaking
- Location: Oxygen Mask
- Part time: 19,566 hours, 2,878 cycles
- Stage of operation: CR
- How discovered: O
- Nature of condition: J
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/AALA202212055914

## Discrepancy

AIRCRAFT WAS GROUNDED: AIRCRAFT DIVERTED TO TO LHR ACCOUNT OXYGEN LEAK IN COCKPIT. CREW OXYGEN PRESSURE DROPPED -TO 630 PSI, APPROXIMATELY 1.5 HOURS INTO FLIGHT. FOUND O2 MASK STOWAGE BOX AT FAULT. REMOVED AND REPLACED CAPTAINS O2 MASK (AALA202212056511) AND STOWAGE BOX (AALA202212055914) PER AMM 35-11-18 AND 35-11-00.

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