# SDR 2022FA0000276

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 20, 2022
- Submitted: June 2, 2022
- Operation: General aviation
- Aircraft: [N955RH](https://openairdocs.org/aircraft/N955RH), registered now
- Make and model: Beech 95-B55
- Registry model: [Beech 95-B55](https://openairdocs.org/model/beech-95-b55) (OpenAirDocs)
- Engine: Cont IO470*
- System (JASC): [5300 · Fuselage Structure (General)](https://openairdocs.org/jasc/5300)
- Part: Vacuum Sys
- Part number: TEMPESTAA442CW14
- Part serial: 012JE01
- Condition: Failed
- Location: Zone 100
- Stage of operation: IN
- How discovered: 9
- Nature of condition: O
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/2022FA0000276

## Discrepancy

TWO VACUUM PUMPS WERE INSTALLED AT ENGINE CHANGE. THEY BOTH FAILED IN UNDER 25 HOURS. BOTH INTERNAL FAILURES. SHEARING THE DRIVE COUPLING. BOTH PURCHASED FROM MAFARLANE AVIATION ON 2/8/22. INVOICE 0453567IN.

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