# SDR JJBA20251114101

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 14, 2025
- Submitted: November 14, 2025
- Operation: Air carrier
- Aircraft: [N21154](https://openairdocs.org/aircraft/N21154), registered now
- Make and model: Emb EMB-145XR
- Registry model: [EMB EMB-145XR](https://openairdocs.org/model/embraer-emb-145xr) (OpenAirDocs)
- Aircraft serial: 145772
- Aircraft time: 48,962 hours, 33,039 cycles
- System (JASC): [3510 · Crew Oxygen System](https://openairdocs.org/jasc/3510)
- Part: Oxygen Bottle
- Part number: 4441009050
- Part serial: 1078064302
- Condition: Inoperative
- Location: Zone 100
- Part time: 4,440 hours, 4,026 cycles
- 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/JJBA20251114101

## Discrepancy

CREW OXYGEN PRESSURE IS AT ZERO PSI. REMOVED AND REPLACED CREW OXYGEN CYLINDER. LEAK CHECK SAT

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