# NTSB Accident ERA12LA336
> **BEECH A36TC** · 2012-05-12 · Erwin, NC, USA · MINR
## Event
- **NTSB number:** ERA12LA336
- **Event ID:** 20120514X32313
- **Type:** Accident
- **Date:** 2012-05-12
- **Location:** Erwin, NC, USA
- **Coordinates:** 35.380001, -78.732223
## Injuries
- **Highest injury:** MINR
- **Fatal:** 0
- **Serious:** 0
- **Minor:** 1
- **Uninjured:** 5
- **Total aboard:** 6
## Aircraft
- **Make:** BEECH
- **Model:** A36TC
- **Registration:** N2WZ
- **FAR Part:** 091
- **Engines:** 1
- **Damage:** SUBS
## Conditions
- **Light:** DAYL
- **Weather:** VMC
## Probable cause

The partial loss of engine power shortly after takeoff due to fatigue-fractured exhaust valve springs. Contributing to the accident was the mechanic’s decision to install exhaust valve springs with an unknown service history in the engine’s No. 4 cylinder.

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*Source: [NTSB CAROL](https://data.ntsb.gov/carol-main-public/basic-search?source=ntsb&type=event&ntsb_number=ERA12LA336) · AI Analytics · CC0 1.0*