# SDR 95ZZZX2105

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 14, 1995
- Submitted: March 26, 2000
- Operation: General aviation
- Filed by: [Duncan Aviation Inc, repair station JGVR194F](https://openairdocs.org/faa-repair-station/JGVR194F/duncan-aviation-inc.md) (OpenAirDocs)
- Aircraft: [N72DA](https://openairdocs.org/aircraft/N72DA), registered now
- Make and model: Lear 35A
- Registry model: [Lear 35A](https://openairdocs.org/model/gates-learjet-35a) (OpenAirDocs)
- Aircraft serial: 098
- System (JASC): [8010 · Engine Cranking](https://openairdocs.org/jasc/8010)
- Part: Relay
- Part number: 6041H202A
- Condition: Malfunction
- Location: Gen Cont Panel
- Stage of operation: CL
- Nature of condition: J
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/95ZZZX2105

## Discrepancy

LEFT ENGINE START RELAY GENERAL CONTROL PANEL FAILED TO THE ENGAGE POSITION IN-FLIGHT CAUSING LEFT ENGINE STARTER TO ENGAGE.  INVESTIGATION REVEALED K-9 RELAY CONTACTS WELDED TOGETHER AND THE K-7 RELAY TO HAVE HIGHLY PITTED CONTACTS.  BOTH THE K-7 AND K-9 RELAYS WERE REPLACED PER GCP REPAIR MANUAL RM-117.  THE RELAYS ARE IN THE POSSESSION OF DUNCAN AVIATION AND AVAILABLE FOR EXAMINATOIN UPON REQUEST.  THE LEFT STARTER SHOWED EVIDENCE OF OVERHREATING AND WAS REPLACED.

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