# NTSB Accident CEN12LA551
> **PIPER PA-24-260** · 2012-08-17 · Holton, KS, USA · SERS
## Event
- **NTSB number:** CEN12LA551
- **Event ID:** 20120817X01208
- **Type:** Accident
- **Date:** 2012-08-17
- **Location:** Holton, KS, USA
- **Coordinates:** 39.453887, -95.788887
## Injuries
- **Highest injury:** SERS
- **Fatal:** 0
- **Serious:** 2
- **Minor:** 1
- **Uninjured:** 0
- **Total aboard:** 3
## Aircraft
- **Make:** PIPER
- **Model:** PA-24-260
- **Registration:** N8546P
- **FAR Part:** 091
- **Engines:** 1
- **Damage:** SUBS
## Conditions
- **Light:** NDRK
- **Weather:** VMC
## Probable cause

The mechanic's failure to adequately torque the right magneto attachment nuts, allowing the right magneto to come loose, which allowed engine oil to escape, causing the engine to seize.

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*Source: [NTSB CAROL](https://data.ntsb.gov/carol-main-public/basic-search?source=ntsb&type=event&ntsb_number=CEN12LA551) · AI Analytics · CC0 1.0*