# NTSB Accident ERA21LA388
> **CESSNA 172** · 2021-09-29 · Port Orange, FL, USA · NONE
## Event
- **NTSB number:** ERA21LA388
- **Event ID:** 20210930103998
- **Type:** Accident
- **Date:** 2021-09-29
- **Location:** Port Orange, FL, USA
- **Coordinates:** 29.090806, -81.064167
## Injuries
- **Highest injury:** NONE
- **Fatal:** 0
- **Serious:** 0
- **Minor:** 0
- **Uninjured:** 2
- **Total aboard:** 2
## Aircraft
- **Make:** CESSNA
- **Model:** 172
- **Registration:** N116SV
- **FAR Part:** 091
- **Engines:** 1
- **Damage:** SUBS
## Conditions
- **Light:** DAYL
- **Weather:** VMC
## Probable cause

The separation of the nut from the stud and the fracture of the bolt that secured the crankshaft idler gear to the engine crankcase, which resulted in a total loss of engine power due to the inability of the left crankshaft idler gear assembly to drive of the camshaft.

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*Source: [NTSB CAROL](https://data.ntsb.gov/carol-main-public/basic-search?source=ntsb&type=event&ntsb_number=ERA21LA388) · AI Analytics · CC0 1.0*