# NTSB Accident CHI04LA212
> **Robinson R44** · 2004-08-05 · Chesterfield, MO, USA · MINR
## Event
- **NTSB number:** CHI04LA212
- **Event ID:** 20040825X01288
- **Type:** Accident
- **Date:** 2004-08-05
- **Location:** Chesterfield, MO, USA
- **Coordinates:** 38.662223, -90.651947
## Injuries
- **Highest injury:** MINR
- **Fatal:** 0
- **Serious:** 0
- **Minor:** 1
- **Uninjured:** 3
- **Total aboard:** 4
## Aircraft
- **Make:** Robinson
- **Model:** R44
- **Registration:** N7036J
- **FAR Part:** 091
- **Engines:** 1
- **Damage:** SUBS
## Conditions
- **Light:** DAYL
- **Weather:** VMC
## Probable cause

The pilot's inadequate preflight planning due to his selection of an unsuitable takeoff area and his failure to maintain clearance from the open hangar door.  A contributing factor was the open hangar door.

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*Source: [NTSB CAROL](https://data.ntsb.gov/carol-main-public/basic-search?source=ntsb&type=event&ntsb_number=CHI04LA212) · AI Analytics · CC0 1.0*