# SDR UO22002F00011

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 13, 2002
- Submitted: May 8, 2002
- Operation: Air carrier
- Aircraft: [N108GX](https://openairdocs.org/aircraft/N108GX), registered now
- Make and model: Israel GALAXY
- Registry model: [Israel GALAXY](https://openairdocs.org/model/israel-aircraft-industries-galaxy) (OpenAirDocs)
- Aircraft serial: 046
- System (JASC): [3500 · Oxygen System](https://openairdocs.org/jasc/3500)
- Part: Fitting
- Condition: Overtorqued
- Location: Oxygen System
- Stage of operation: IN
- How discovered: V
- Nature of condition: W
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/UO22002F00011

## Discrepancy

WHILE INSPECTING (SN 046) FOUND THAT THE 2ND O2 BOTTLE INSTALLATION PLUMBING CAN NOT BE INSTALLED ACCORDING TO STC ST09748SC.  THIS STC CALLS OUT MAX TORQUES ON THE PLUMBING FITTINGS.  THE FITTINGS LEAK AT MAX TORQUES EVEN WITH THE TAPE ALLOWED INSTALLED ON THE FITTING THREADS.  THESE FITTINGS HAVE BEEN OVER TORQUED TO ACHIEVE NO LEAKS.  I BELIEVE THAT ALTHOUGH THESE LINES ARE STAINLESS STEEL, THE OVERTORQUE SITUATION MAY CAUSE FAILURE.  NO SOLUTION TO DATE.

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