# SDR 8PCR20150414001

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 14, 2015
- Submitted: April 15, 2015
- Operation: Air carrier
- Aircraft: [N499CA](https://openairdocs.org/aircraft/N499CA), registered now
- Make and model: Cessna 402C
- Registry model: [Cessna 402C](https://openairdocs.org/model/cessna-402c) (OpenAirDocs)
- Aircraft serial: 402C1006
- Engine: Cont TSIO520VB
- Engine time: 2,030 hours
- System (JASC): [8530 · Reciprocating Engine Cylinder Section](https://openairdocs.org/jasc/8530)
- Part: Sleeve
- Condition: Loose
- Location: Crankcase
- Part time: 2,030 hours
- Stage of operation: CL
- How discovered: O
- Nature of condition: R, T
- Precautionary procedure: E, A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/8PCR20150414001

## Discrepancy

NUMBER 5 EXHAUST LIFTER BORE ALUMINUM SLEEVE IN THE CRANKCASE WAS FOUND TO BE LOOSE & MISSING MATERIAL.  THIS CRANKCASE HAD THE LIFTER BORES SLEEVED DURING CRANKCASE OVERHAUL & REPAIR.  THE LOOSE LIFTER BORE SLEEVE MOVED OUT OF ITS BORE & CAME IN CONTACT WITH THE CAMSHAFT LOBE, RESULTING IN A LOSS OF 1/3 OF THE SLEEVE MATERIAL.  THIS ALUMINUM SLEEVE MATERIAL, FRAGMENTS TOO LARGE TO PASS THROUGH THE OIL SUMP PICK UP TUBE, RESTRICTED THE OIL PICK UP & CAUSED AN ENG LUBRICATION DISTRESS EVENT.

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