# SDR DL757080617

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 20, 2008
- Submitted: April 22, 2008
- Operation: Air carrier
- Aircraft: [N900PC](https://openairdocs.org/aircraft/N900PC), registered now
- Make and model: Boeing 757-26D
- Registry model: [Boeing 757-26D](https://openairdocs.org/model/boeing-757-26d) (OpenAirDocs)
- Aircraft serial: 28446
- Aircraft time: 36,021 hours, 15,383 cycles
- System (JASC): [3510 · Crew Oxygen System](https://openairdocs.org/jasc/3510)
- Part: Hose
- Condition: Ruptured
- Location: Cockpit Oxygen
- Stage of operation: CR
- How discovered: O
- Nature of condition: O
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/DL757080617

## Discrepancy

IRR ON DESCENT CAPTS O2 DEVELOPED A LEAK, MILD POP HEARD FOLLOWED BY HISSING UNTIL O2 DEPLETION.  FOUND CAPTS O2 MASK BOX SUPPLY LINE HOSE RUPTURED.  REPLACED SAME LEAK CHECK OK.

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