# SDR UPS01235331

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 19, 2001
- Submitted: March 22, 2001
- Operation: Air carrier
- Aircraft: [N949UP](https://openairdocs.org/aircraft/N949UP), registered now
- Make and model: Boeing 727-25C
- Registry model: [Boeing 727-25C](https://openairdocs.org/model/boeing-727-25c) (OpenAirDocs)
- Aircraft serial: 19717
- System (JASC): [3510 · Crew Oxygen System](https://openairdocs.org/jasc/3510)
- Part: Line
- Condition: Leaking
- Location: Crew Oxygen Sys
- 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/UPS01235331

## Discrepancy

INSPECTION TYPE:B REF L/P 640094 ITEM NR 1 FOUND OXY LEAKING AT OXY DISTRIBUTION TUBE B-NUT CONNECTED TO PRESSURE TRANSDUCER AND TO THE OTHER END B-NUT CONNECTED TO THE FOUR WAY FITTING.  BAD LINE REMOVED, 02 TURNED OFF AT BOTTLE.  REMOVED AND REPLACED 02 LINE (P/N 65-20901-88) IAW STANDARD PRACTICES.  LEAK CHECKS GOOD.

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