# NTSB Accident ANC89FA069
> **BELL 412** · 1989-05-06 · GIRDWOOD, AK, USA · MINR
## Event
- **NTSB number:** ANC89FA069
- **Event ID:** 20001213X28212
- **Type:** Accident
- **Date:** 1989-05-06
- **Location:** GIRDWOOD, AK, USA
- **Coordinates:** 60.899848, -148.910263
## Injuries
- **Highest injury:** MINR
- **Fatal:** 0
- **Serious:** 0
- **Minor:** 2
- **Uninjured:** 0
- **Total aboard:** 2
## Aircraft
- **Make:** BELL
- **Model:** 412
- **Registration:** N524EH
- **FAR Part:** 135
- **Engines:** 2
- **Damage:** DEST
## Conditions
- **Light:** DAYL
- **Weather:** VMC
## Probable cause

A MAIN ROTOR FLIGHT CONTROL BOLT (PART NUMBER 20-057-6-38D) CAME OUT OF ITS ROD END BEARING WHILE IN FLIGHT DUE TO THE BOLT BEING IMPROPERLY TORQUED DURING MAINTENANCE.

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*Source: [NTSB CAROL](https://data.ntsb.gov/carol-main-public/basic-search?source=ntsb&type=event&ntsb_number=ANC89FA069) · AI Analytics · CC0 1.0*