# SDR 97ZZZX1237

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 7, 1997
- Submitted: March 26, 2000
- Operation: General aviation
- Filed by: [Helicopter Transport Services LLC, repair station FW7R194W](https://openairdocs.org/faa-repair-station/FW7R194W/helicopter-transport-services-llc.md) (OpenAirDocs)
- Aircraft: [N2044F](https://openairdocs.org/aircraft/N2044F), registered now
- Make and model: Hughes 269C
- Registry model: [Hughes 269C](https://openairdocs.org/model/hughes-269c) (OpenAirDocs)
- Aircraft serial: S1722
- Engine: Lyc HIO360D1A
- System (JASC): [8530 · Reciprocating Engine Cylinder Section](https://openairdocs.org/jasc/8530)
- Part: Cylinder
- Part number: LW12987C2
- Condition: Defective
- Location: Nr 1
- Stage of operation: IN
- Nature of condition: E, R
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/97ZZZX1237

## Discrepancy

AFTER THIS CYLINDER WAS INSTALLED, THE ENGINE OIL CONSUMPTION INCREASED.  EVEN AFTER A SUFFICIENT BREAK-IN PERIOD, THE CONSUMPTION DID NOT DROP.  AFTER APPROXIMATELY 162 HOURS, THE ENGINE RAN EXTREMELY ROUGH EVEN WITHOUT THE MAIN ROTOR ENGAGED.  THE SPARK PLUGS WERE REMOVED, AND THE LOWER NR 1 PLUG WAS FOUND COMPLETELY OIL FOULED.  THE CYLINDER WAS REPLACED WITH A FACTORY NEW UNIT.

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