# SDR CA000110020

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 23, 1999
- Submitted: April 14, 2000
- Operation: Air carrier
- Make and model: Boeing 727-22C
- Registry model: [Boeing 727-22C](https://openairdocs.org/model/boeing-727-22c) (OpenAirDocs)
- Aircraft time: 51,380 hours
- Engine: Pwa JT8D7B
- System (JASC): [3500 · Oxygen System](https://openairdocs.org/jasc/3500)
- Part: Line
- Part number: 106017425
- Condition: Ruptured
- Location: Oxygen System
- Component: Line O2
- Stage of operation: TX
- How discovered: O
- Nature of condition: O
- Precautionary procedure: D
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/CA000110020

## Discrepancy

(CAN) FLIGHT CREW HEARD A BANG, ISOLATED TO 02 PRESSURE DROPPING. FLEX LINE TO THE FOS 02 REGULATOR FAILED,  REPLACED.

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