# NTSB Accident ERA10CA407
> **ROBINSON HELICOPTER R44** · 2010-08-08 · Aguadilla, PR, USA · MINR
## Event
- **NTSB number:** ERA10CA407
- **Event ID:** 20100808X61636
- **Type:** Accident
- **Date:** 2010-08-08
- **Location:** Aguadilla, PR, USA
- **Coordinates:** 18.3775, -67.027778
## Injuries
- **Highest injury:** MINR
- **Fatal:** 0
- **Serious:** 0
- **Minor:** 4
- **Uninjured:** 0
- **Total aboard:** 4
## Aircraft
- **Make:** ROBINSON HELICOPTER
- **Model:** R44
- **Registration:** N367JM
- **FAR Part:** 091
- **Engines:** 1
- **Damage:** SUBS
## Conditions
- **Light:** DAYL
- **Weather:** VMC
## Probable cause

The pilot's inadequate preflight performance calculations, which resulted in the overweight helicopter's lack of hover capability out of ground effect.

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*Source: [NTSB CAROL](https://data.ntsb.gov/carol-main-public/basic-search?source=ntsb&type=event&ntsb_number=ERA10CA407) · AI Analytics · CC0 1.0*