# SDR 95ZZZX6401

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 26, 1995
- Submitted: March 26, 2000
- Operation: General aviation
- Aircraft: N265JJ
- Make and model: Cessna 421C
- Registry model: [Cessna 421C](https://openairdocs.org/model/cessna-421c) (OpenAirDocs)
- Aircraft serial: 421C0822
- System (JASC): [3710 · Vacuum Distribution System](https://openairdocs.org/jasc/3710)
- Part: Pump
- Part number: 441CC
- Condition: Failed
- Location: Lt Eng Vacuum
- Component: Airborne
- 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/95ZZZX6401

## Discrepancy

THE VACUUM PUMP WAS OVERHAULED BY REPAIR STA NR 766-44.  THE TIME SINCE OVERHAUL WAS 813 HOURS.  SUBMITTER STATES THIS IS ABOUT NORMAL SERVICE LIFE FOR THIS TYPE OF PUMP, AND IS EVEN BETTER FOR AN OVERHAULED UNIT.

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