# SDR 98ZZZX3064

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 22, 1998
- Submitted: March 26, 2000
- Operation: General aviation
- Aircraft: N5499J
- Make and model: Cessna 310R
- Registry model: [Cessna 310R](https://openairdocs.org/model/cessna-310r) (OpenAirDocs)
- Aircraft serial: 310R0297
- Engine: Cont IO520M
- System (JASC): [8520 · Reciprocating Engine Power Section](https://openairdocs.org/jasc/8520)
- Part: Lifter
- Part number: 628488
- Condition: Spalled
- Location: Intake
- Part time: 1,384 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/98ZZZX3064

## Discrepancy

DURING OIL CHANGE, NOTICED METAL PARTICLES IN FILTER.  SENT TO CONTINENTAL AND WAS FOUND TO BE LIFTER PIECES.  REMOVED ENGINE FROM SERVICE.  HAVE HAD 7 ENGINES WITH PRE-MATURE LIFTER-CAM FAILURE.  SUBMITTER STATED THERE ARE 29 SDR'S ON THE SAME LIFTER PART NUMBER THAT WERE FOUND THROUGH FSDO.  SUBMITTER IS USING 15W-50 WEIGHT OIL AND THEY ARE SWITCHING TO 100-50 WEIGHT OIL ASAP.  CALLS TO CONTINENTAL, THEY DO NOT SEE THAT MANY PROBLEMS WITH LIFTERS.

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