# NTSB Accident CEN15LA238
> **PIPER PA-25-235** · 2015-05-11 · Omega, OK, USA · NONE
## Event
- **NTSB number:** CEN15LA238
- **Event ID:** 20150520X45130
- **Type:** Accident
- **Date:** 2015-05-11
- **Location:** Omega, OK, USA
- **Coordinates:** 35.870277, -98.197776
## Injuries
- **Highest injury:** NONE
- **Fatal:** 0
- **Serious:** 0
- **Minor:** 0
- **Uninjured:** 1
- **Total aboard:** 1
## Aircraft
- **Make:** PIPER
- **Model:** PA-25-235
- **Registration:** N7279Z
- **FAR Part:** 137
- **Engines:** 1
- **Damage:** SUBS
## Conditions
- **Light:** DUSK
- **Weather:** VMC
## Probable cause

Improper base metal preparation or contamination of the No. 5 cylinder wall before it was coated, which resulted in the coating peeling off of the cylinder wall and contaminating the engine oil and the subsequent partial loss of engine power.

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*Source: [NTSB CAROL](https://data.ntsb.gov/carol-main-public/basic-search?source=ntsb&type=event&ntsb_number=CEN15LA238) · AI Analytics · CC0 1.0*