# SDR 2016FA0000280

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 19, 2016
- Submitted: June 8, 2016
- Operation: General aviation
- Aircraft: [N3004](https://openairdocs.org/aircraft/N3004), registered now
- Make and model: Amtr SIDEWINDER
- Aircraft serial: 212276
- Engine: Lyc O290*
- System (JASC): [8520 · Reciprocating Engine Power Section](https://openairdocs.org/jasc/8520)
- Part: Plug
- Condition: Missing
- Location: Piston
- Part time: 531 hours
- Stage of operation: IN
- How discovered: 9
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/2016FA0000280

## Discrepancy

ENGINE CYLINDERS REMOVED DUE TO LOW COMPRESSION, FOUND PISTON PLUG BUTTONS MISSING ON ALL CYLINDERS.  SCORING ON CYLINDER WALLS 48.9 HRS SINCE SUDDEN STOPPAGE INSPECTION.

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