# SDR 95ZZZX2436

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 30, 1995
- Submitted: March 26, 2000
- Operation: General aviation
- Aircraft: N4145H
- Make and model: Mooney M20J
- Registry model: [Mooney M20J](https://openairdocs.org/model/mooney-m20j) (OpenAirDocs)
- Aircraft serial: 240648
- Engine: Lyc IO360A3B6
- System (JASC): [8520 · Reciprocating Engine Power Section](https://openairdocs.org/jasc/8520)
- Part: Tappet
- Part number: SL72877MJP
- Condition: Failed
- Location: Cam
- Stage of operation: NR
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/95ZZZX2436

## Discrepancy

TAPPET BODIES BROKE AT THE TOP WHERE THEY RIDE ON THE CAM.  PARTS OF TAPPETS THEN LODGED BETWEEN THE CAM AND CASE CAUSING A CRACK IN THE CASE, ALSO, DAMAGE TO PISTONS, RODS, CRANK, AND CAM, RESULTING ENGINE FAILURE.

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