# SDR 99ZZZX2488

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 24, 1999
- Submitted: March 26, 2000
- Operation: General aviation
- Aircraft: N254JT
- Make and model: Lear 24B
- Registry model: [Lear 24B](https://openairdocs.org/model/learjet-24b) (OpenAirDocs)
- Aircraft serial: 181
- System (JASC): [3411 · Pitot/Static System](https://openairdocs.org/jasc/3411)
- Part: Valve
- Condition: Wrong Part
- Location: Static System
- 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/99ZZZX2488

## Discrepancy

WHILE TROUBLESHOOTING PILOT'S SIDE STATIC SYSTEM FOR LEAKS, FOUND THE ALTERNATE STATIC SOURCE CONTROL VALVE WAS NOT THE PROPER LEARJET VALVE.  THE VALVE THAT WAS INSTALLED WAS A HARDWARE STORE VARIETY NATURAL GAS VALVE.  IT WAS FOUND THAT THIS VALVE LEAKED.  IT IS UNKNOWN WHY THIS VALVE WAS INSTALLED.  THE VALVE WAS REPLACED WITH THE CORRECT PART.

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