# NTSB Accident CHI08FA172
> **ENSTROM HELICOPTER CORP 480B** · 2008-06-24 · MARINETTE, WI, USA · NONE
## Event
- **NTSB number:** CHI08FA172
- **Event ID:** 20080630X00952
- **Type:** Accident
- **Date:** 2008-06-24
- **Location:** MARINETTE, WI, USA
- **Coordinates:** 45.080581, -87.620361
## Injuries
- **Highest injury:** NONE
- **Fatal:** 0
- **Serious:** 0
- **Minor:** 0
- **Uninjured:** 2
- **Total aboard:** 2
## Aircraft
- **Make:** ENSTROM HELICOPTER CORP
- **Model:** 480B
- **Registration:** N480PD
- **FAR Part:** 091
- **Engines:** 1
- **Damage:** SUBS
## Conditions
- **Light:** DAYL
- **Weather:** VMC
## Probable cause

The pilot inadvertently operating the helicopter at a gross weight greater than its maximum allowable operating weight, and flying the helicopter at an airspeed greater than the never-to-exceed speed for the helicopter’s gross weight condition, resulting in structural damage to the tailcone.

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*Source: [NTSB CAROL](https://data.ntsb.gov/carol-main-public/basic-search?source=ntsb&type=event&ntsb_number=CHI08FA172) · AI Analytics · CC0 1.0*