# SDR 95ZZZX3690

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 7, 1995
- Submitted: March 26, 2000
- Operation: General aviation
- Aircraft: [N40CR](https://openairdocs.org/aircraft/N40CR), registered now
- Make and model: Lear 55C
- Registry model: [Lear 55C](https://openairdocs.org/model/gates-learjet-55c) (OpenAirDocs)
- Aircraft serial: 144
- System (JASC): [2913 · Hydraulic Pump (Electric/Engine), Main](https://openairdocs.org/jasc/2913)
- Part: Pump
- Part number: 66003013
- Condition: Shaft Stripped
- Location: Nr 1 Eng Hyd
- Part time: 1,387 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/95ZZZX3690

## Discrepancy

NR 1 ENGINE DRIVEN HYDRUALIC PUMP SHAFT WAS COMPLETELY STRIPPED OF ALL GEAR MATING SURFACE AREA RESULTING IN NO HYDRAULIC OUTPUT FROM THAT ENGINE.  FOUND ON INITIAL ENGINE HOT SECTION INSPECTION.

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