# NTSB Accident ERA21LA099
> **Diamond Aircraft DA 40** · 2021-01-03 · Portsmouth, NH, USA · NONE
## Event
- **NTSB number:** ERA21LA099
- **Event ID:** 20210112102515
- **Type:** Accident
- **Date:** 2021-01-03
- **Location:** Portsmouth, NH, USA
- **Coordinates:** 43.077944, -70.823278
## Injuries
- **Highest injury:** NONE
- **Fatal:** 0
- **Serious:** 0
- **Minor:** 0
- **Uninjured:** 2
- **Total aboard:** 2
## Aircraft
- **Make:** Diamond Aircraft
- **Model:** DA 40
- **Registration:** N489RS
- **FAR Part:** 091
- **Engines:** 1
- **Damage:** SUBS
## Conditions
- **Light:** DAYL
- **Weather:** VMC
## Probable cause

The instructor’s multiple applications of the airplane’s brakes during high-speed taxi over a short duration, which overheated and ignited the right main landing gear wheel brake assembly.

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*Source: [NTSB CAROL](https://data.ntsb.gov/carol-main-public/basic-search?source=ntsb&type=event&ntsb_number=ERA21LA099) · AI Analytics · CC0 1.0*