# NTSB Accident CEN13LA524
> **STEMME GMBH & CO S10-VT** · 2013-08-31 · Mackinaw City, MI, USA · SERS
## Event
- **NTSB number:** CEN13LA524
- **Event ID:** 20130904X62649
- **Type:** Accident
- **Date:** 2013-08-31
- **Location:** Mackinaw City, MI, USA
- **Coordinates:** 45.767776, -84.734725
## Injuries
- **Highest injury:** SERS
- **Fatal:** 0
- **Serious:** 1
- **Minor:** 0
- **Uninjured:** 1
- **Total aboard:** 2
## Aircraft
- **Make:** STEMME GMBH & CO
- **Model:** S10-VT
- **Registration:** N389BD
- **FAR Part:** 091
- **Engines:** 1
- **Damage:** SUBS
## Conditions
- **Light:** DUSK
- **Weather:** VMC
## Probable cause

The mechanic’s failure to inspect the tightness of the bolts that connected the flexible disk to the driveshaft, which resulted in the failure of these components.

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*Source: [NTSB CAROL](https://data.ntsb.gov/carol-main-public/basic-search?source=ntsb&type=event&ntsb_number=CEN13LA524) · AI Analytics · CC0 1.0*