# NTSB Accident ERA21LA292
> **ROBINSON HELICOPTER COMPANY R44 II** · 2021-07-16 · Princeton, KY, USA · SERS
## Event
- **NTSB number:** ERA21LA292
- **Event ID:** 20210716103493
- **Type:** Accident
- **Date:** 2021-07-16
- **Location:** Princeton, KY, USA
- **Coordinates:** 37.071389, -87.759722
## Injuries
- **Highest injury:** SERS
- **Fatal:** 0
- **Serious:** 1
- **Minor:** 1
- **Uninjured:** 0
- **Total aboard:** 2
## Aircraft
- **Make:** ROBINSON HELICOPTER COMPANY
- **Model:** R44 II
- **Registration:** N512RT
- **FAR Part:** 137
- **Engines:** 1
- **Damage:** SUBS
## Conditions
- **Light:** DAYL
- **Weather:** VMC
## Probable cause

The pilot’s inadequate preflight planning in that he failed to accurately determine the takeoff weight of the helicopter, which resulted in exceeding the helicopter’s maximum weight capability.

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*Source: [NTSB CAROL](https://data.ntsb.gov/carol-main-public/basic-search?source=ntsb&type=event&ntsb_number=ERA21LA292) · AI Analytics · CC0 1.0*