# NTSB Accident ERA12FA563
> **AEROSPATIALE AS 355F1** · 2012-09-15 · West Windsor, NJ, USA · FATL
## Event
- **NTSB number:** ERA12FA563
- **Event ID:** 20120915X43730
- **Type:** Accident
- **Date:** 2012-09-15
- **Location:** West Windsor, NJ, USA
- **Coordinates:** 40.299999, -74.668609
## Injuries
- **Highest injury:** FATL
- **Fatal:** 1
- **Serious:** 0
- **Minor:** 0
- **Uninjured:** 0
- **Total aboard:** 1
## Aircraft
- **Make:** AEROSPATIALE
- **Model:** AS 355F1
- **Registration:** N58020
- **FAR Part:** 091
- **Engines:** 2
- **Damage:** SUBS
## Conditions
- **Light:** DAYL
- **Weather:** VMC
## Probable cause

Disconnection of the upper rod end from the fore/aft servo due to severely worn threads, which resulted in a loss of control and separation of a main rotor blade during cruise flight. Contributing to the accident were incorrect maintenance procedures and inadequate maintenance inspections performed by the operator, and insufficient inspection criteria provided by the helicopter manufacturer.

---
*Source: [NTSB CAROL](https://data.ntsb.gov/carol-main-public/basic-search?source=ntsb&type=event&ntsb_number=ERA12FA563) · AI Analytics · CC0 1.0*