# NTSB Accident ERA16LA174
> **AMERICAN CHAMPION AIRCRAFT 7AC** · 2016-04-30 · Keene, NH, USA · NONE
## Event
- **NTSB number:** ERA16LA174
- **Event ID:** 20160503X12400
- **Type:** Accident
- **Date:** 2016-04-30
- **Location:** Keene, NH, USA
- **Coordinates:** 42.898334, -72.270835
## Injuries
- **Highest injury:** NONE
- **Fatal:** 0
- **Serious:** 0
- **Minor:** 0
- **Uninjured:** 2
- **Total aboard:** 2
## Aircraft
- **Make:** AMERICAN CHAMPION AIRCRAFT
- **Model:** 7AC
- **Registration:** N85510
- **FAR Part:** 091
- **Engines:** 1
- **Damage:** SUBS
## Conditions
- **Light:** DAYL
- **Weather:** VMC
## Probable cause

The disengagement of the tailwheel locking mechanism during the landing roll due to wear, and a subsequent loss of directional control. Contributing was the pilot's inadequate remedial action, which resulted in a runway excursion.

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*Source: [NTSB CAROL](https://data.ntsb.gov/carol-main-public/basic-search?source=ntsb&type=event&ntsb_number=ERA16LA174) · AI Analytics · CC0 1.0*