# SDR 99ZZZX3398

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 19, 1999
- Submitted: March 26, 2000
- Operation: General aviation
- Engine: Lyc HIO360E1AD
- System (JASC): [8530 · Reciprocating Engine Cylinder Section](https://openairdocs.org/jasc/8530)
- Part: Valve
- Part number: AEL13622
- Condition: Failed
- Location: Exhaust Stem
- Part time: 45 hours
- Component: LW12988
- 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/99ZZZX3398

## Discrepancy

INSTALLED NEW VALVES AT TIME OF OVH.  VALVE STEM END BROKE OFF DUE TO ABNORMAL WEAR.

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