# SDR CA951130016

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 12, 1995
- Submitted: March 26, 2000
- Operation: Air carrier
- Engine: Lyc AEIO360A1B6
- System (JASC): [8520 · Reciprocating Engine Power Section](https://openairdocs.org/jasc/8520)
- Part: Seal
- Condition: Displaced
- Location: Crankshaft
- Part time: 98 hours
- Stage of operation: CR
- Nature of condition: K
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/CA951130016

## Discrepancy

(CAN)IN CRUISE PILOT NOTICED OIL STREAMING BACK ALONG CANOPY. AN EMERG WAS DECLARED & ACFT LANDED.ENG WAS SHUTDOWN IMMEDIATELY & ACFT TOWED TO MAINT.THE OIL LEVEL PRIOR TO FLT WAS 6  QUARTS AFTER ENG SHUTDWN THE OIL LEVEL WAS CHECKED AT 3.5 QUARTS.POST FLT INSP FOUND THE FRONT CRANKSHAFT SEAL WAS POPPED OUT OF THE CRANKCASE.THE PROPELLER WAS REMOVED FOR INVESTIGATION & NO DEFECTS WERE FOUND.THE ENGINE OIL FILTER & SCREENS SHOWED NO DEFECTS.CRANKSHAFT SEAL WAS INSPECTED & FOUND SERVICEABLE.SEAL REINSTALLED.ENGINE BREATHER LINES LAGGED.IT IS SUSPECTED THAT THE ENG BREATHER LINES FROZE & THE CRANKCASE PRESSURIZED & THE SEAL POPPED OUT.ACFT RETURNED TO SERVICE.

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