# NTSB Accident WPR20LA004
> **Glaser Dirks DG500** · 2019-10-06 · Marana, AZ, USA · MINR
## Event
- **NTSB number:** WPR20LA004
- **Event ID:** 20191007X04618
- **Type:** Accident
- **Date:** 2019-10-06
- **Location:** Marana, AZ, USA
- **Coordinates:** 32.43, -111.38999
## Injuries
- **Highest injury:** MINR
- **Fatal:** 0
- **Serious:** 0
- **Minor:** 1
- **Uninjured:** 1
- **Total aboard:** 2
## Aircraft
- **Make:** Glaser Dirks
- **Model:** DG500
- **Registration:** N600TT
- **FAR Part:** 091
- **Engines:** —
- **Damage:** SUBS
## Conditions
- **Light:** DAYL
- **Weather:** VMC
## Probable cause

The pilots’ exceedance of the glider’s never-exceed speed (VNE) during recovery from an intentional aerobatic maneuver, which resulted in a failure of the right-wing air brake control drive, asymmetrical air brake deployment, and a subsequent hard landing.

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*Source: [NTSB CAROL](https://data.ntsb.gov/carol-main-public/basic-search?source=ntsb&type=event&ntsb_number=WPR20LA004) · AI Analytics · CC0 1.0*