# SDR 96ZZZX72

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 11, 1995
- Submitted: March 26, 2000
- Operation: General aviation
- Aircraft: [N7427V](https://openairdocs.org/aircraft/N7427V), registered now
- Make and model: Mooney M20E
- Registry model: [Mooney M20E](https://openairdocs.org/model/mooney-m20e) (OpenAirDocs)
- Aircraft serial: 1167
- System (JASC): [7922 · Engine Oil Temperature Regulator](https://openairdocs.org/jasc/7922)
- Part: Valve
- Part number: 75944
- Condition: Defective
- Location: Thermo Bypass
- Part time: 931 hours
- Stage of operation: IN
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/96ZZZX72

## Discrepancy

RED TAG IAW SB 518C ABOUT 85 PERCENT OF THESE VALVES INSPECTED HAVE FAILED IAW SB 518C.  SUBMITTER RECOMMENDS SB BE MADE AN AD.

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