# NTSB Accident WPR24LA239
> **MCDONNELL DOUGLAS HELICOPTER 369** · 2024-07-09 · Mesa, AZ, USA · NONE
## Event
- **NTSB number:** WPR24LA239
- **Event ID:** 20240711194670
- **Type:** Accident
- **Date:** 2024-07-09
- **Location:** Mesa, AZ, USA
- **Coordinates:** 33.395, -111.6501
## Injuries
- **Highest injury:** NONE
- **Fatal:** 0
- **Serious:** 0
- **Minor:** 0
- **Uninjured:** 2
- **Total aboard:** 2
## Aircraft
- **Make:** MCDONNELL DOUGLAS HELICOPTER
- **Model:** 369
- **Registration:** N540HH
- **FAR Part:** 091
- **Engines:** 1
- **Damage:** SUBS
## Conditions
- **Light:** DAYL
- **Weather:** VMC
## Probable cause

The pilot receiving instruction’s failure to maintain helicopter control during autorotation, which resulted in a dynamic rollover. Contributing to the accident was the delayed remedial action from the flight instructor.

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*Source: [NTSB CAROL](https://data.ntsb.gov/carol-main-public/basic-search?source=ntsb&type=event&ntsb_number=WPR24LA239) · AI Analytics · CC0 1.0*