# SDR CALA2026060916949

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 7, 2026
- Submitted: June 9, 2026
- Operation: Air carrier
- Aircraft: [N69888](https://openairdocs.org/aircraft/N69888), registered now
- Make and model: Boeing 737924ER
- Aircraft serial: 42191
- Aircraft time: 34,097 hours, 12,476 cycles
- System (JASC): [3510 · Crew Oxygen System](https://openairdocs.org/jasc/3510)
- Part: Oxygen Mask
- Condition: Leaking
- Location: Zone 200
- Stage of operation: CL
- How discovered: O
- Nature of condition: O
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/CALA2026060916949

## Discrepancy

CREW O2 AT 400PSI FOUND SOURCE OF LEAK TO BE OBSERVERS MASK WAS NOT IN STOWED POSITION, WHICH CAUSED THE EMERGANCY SWITCH ON THE MASK TO DEPLETE CREW O2. REPACKED OBSERVERS MASK LEAKED CHECKED IN REF TO AMM 35-12-85-910-801 CREW O2 WAS AT 400PSI SERVICED CREW O2 IN REF TO AMM 12-15-21. ACFT OK FOR SERVICE

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