# SDR CA040413012

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 12, 2004
- Submitted: July 22, 2004
- Operation: General aviation
- Make and model: Piper PA-31-350
- Registry model: [Piper PA-31-350](https://openairdocs.org/model/piper-pa-31-350) (OpenAirDocs)
- Aircraft time: 19,937 hours
- Engine: Lyc LTIO540J2BD
- System (JASC): [3710 · Vacuum Distribution System](https://openairdocs.org/jasc/3710)
- Part: Seal
- Condition: Leaking
- Location: Vacuum Pump
- Stage of operation: IN
- How discovered: 9
- Nature of condition: K
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/CA040413012

## Discrepancy

(CAN) AT 400 HRS SPECIAL INSPECTION FOUND OIL LEAK ON RT ENGINE, OUT OF VACUUM PUMP SHAFT.  REMOVED PUMP FOUND DRIVE SHAFT SEAL LEAKING PN: 06A19956. AFTER THE SEAL REMOVAL DURING VISUAL INSPECTION FOUND RUBBER PART OF THE SEAL SCUFFED IN SOME PLACES CAUSING THE LEAKAGE.

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