# SDR 97ZZZX4968

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 17, 1997
- Submitted: March 26, 2000
- Operation: General aviation
- Aircraft: [N491JV](https://openairdocs.org/aircraft/N491JV), registered now
- Make and model: Beech C90A
- Registry model: [Beech C90A](https://openairdocs.org/model/beech-c90a) (OpenAirDocs)
- Aircraft serial: LJ1349
- System (JASC): [3710 · Vacuum Distribution System](https://openairdocs.org/jasc/3710)
- Part: Tube Assy
- Part number: 1013202661
- Condition: Chafed
- Location: Vacuum System
- Part time: 2,299 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/97ZZZX4968

## Discrepancy

VACUUM TUBE ASSY WAS WORN THROUGH IN A 3 INCH BY .1250 INCH AREA.  THE RADAR CRT WAS RESTING ON PIPE.  THERE WAS NO LEAK WHEN THE PANEL WAS AT REST.  MOVING THE GEAR HANDLE EXPOSED THE LEAK BY MOVING THE RADAR UNIT FOWARD.  THIS WAS FOUND WHEN PERFORMING A RETRACTION CHECK ON JACKS IN THE HANGAR.

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