# NTSB Accident ERA12LA574
> **CESSNA 150G** · 2012-09-21 · Corinth, MS, USA · MINR
## Event
- **NTSB number:** ERA12LA574
- **Event ID:** 20120922X32829
- **Type:** Accident
- **Date:** 2012-09-21
- **Location:** Corinth, MS, USA
- **Coordinates:** 34.908889, -88.601943
## Injuries
- **Highest injury:** MINR
- **Fatal:** 0
- **Serious:** 0
- **Minor:** 2
- **Uninjured:** 0
- **Total aboard:** 2
## Aircraft
- **Make:** CESSNA
- **Model:** 150G
- **Registration:** N8465J
- **FAR Part:** 091
- **Engines:** 1
- **Damage:** SUBS
## Conditions
- **Light:** DAYL
- **Weather:** VMC
## Probable cause

The improper torque application on the crankshaft gear bolt by maintenance personnel during an engine overhaul, which resulted in the fatigue failure of the locking tab washer and gear alignment dowel and subsequent engine stoppage. Contributing to the accident was the operator’s exceedence of the engine overhaul calendar year limits recommended by the engine manufacturer.

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*Source: [NTSB CAROL](https://data.ntsb.gov/carol-main-public/basic-search?source=ntsb&type=event&ntsb_number=ERA12LA574) · AI Analytics · CC0 1.0*