# NTSB Accident IAD05LA107
> **Brantly Helicopter B-2B** · 2005-07-24 · Plymouth, MA, USA · NONE
## Event
- **NTSB number:** IAD05LA107
- **Event ID:** 20050802X01137
- **Type:** Accident
- **Date:** 2005-07-24
- **Location:** Plymouth, MA, USA
- **Coordinates:** 41.914722, -70.736663
## Injuries
- **Highest injury:** NONE
- **Fatal:** 0
- **Serious:** 0
- **Minor:** 0
- **Uninjured:** 2
- **Total aboard:** 2
## Aircraft
- **Make:** Brantly Helicopter
- **Model:** B-2B
- **Registration:** N9018Y
- **FAR Part:** 091
- **Engines:** 1
- **Damage:** SUBS
## Conditions
- **Light:** DAYL
- **Weather:** VMC
## Probable cause

Fatigue failure of the intermediate tailrotor driveshaft, which resulted in a loss of directional control at a hover.

---
*Source: [NTSB CAROL](https://data.ntsb.gov/carol-main-public/basic-search?source=ntsb&type=event&ntsb_number=IAD05LA107) · AI Analytics · CC0 1.0*