# SDR 2026FA0000792

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 29, 2026
- Submitted: September 29, 2026
- Operation: General aviation
- Aircraft: [N792MF](https://openairdocs.org/aircraft/N792MF), registered now
- Make and model: Boeing 777
- System (JASC): [3510 · Crew Oxygen System](https://openairdocs.org/jasc/3510)
- Part: Oxygen Bottle
- Part number: 80404415
- Part serial: ALT28242063
- Condition: Leaking
- Location: Zone 100
- Stage of operation: IN
- How discovered: V
- Nature of condition: K
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/2026FA0000792

## Discrepancy

OXY BOTTLE WAS INSTALLED IN THE AFT CARGO (T/C. R0731) ON 9TH JULY 26 AT FULL CHARGE, IT WAS NOTICED ON 23RD SEPT 26 TO BE DOWN TO 150PSI, AND CONFIRMED THE BOTTLE WAS TURNED OFF. REF NRC N2432.  S/N'S. ALT282-48120 AND ALT282-47105 (T/C. R0734) WERE PACKAGED IN TOGETHER AND DELIVERED TO THE SHOP FLOOR ON 24TH SEPT 26, ON INSPECTION ALT282-47105 WAS AT 150PSI, ALT282-48120 WAS READING ZERO (REF. SMS13780) OUR UNDERSTANDING IS THESE BOTTLES SHOULD ARRIVE AT 1800PSI, AND SUSPECT A POSSIBLE LEAK.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.