# NTSB Accident SEA99FA013
> **Hiller UH-12E** · 1998-11-10 · MARSHALL, WA, USA · FATL
## Event
- **NTSB number:** SEA99FA013
- **Event ID:** 20001211X11496
- **Type:** Accident
- **Date:** 1998-11-10
- **Location:** MARSHALL, WA, USA
- **Coordinates:** 47.430717, -117.620239
## Injuries
- **Highest injury:** FATL
- **Fatal:** 1
- **Serious:** 0
- **Minor:** 0
- **Uninjured:** 0
- **Total aboard:** 1
## Aircraft
- **Make:** Hiller
- **Model:** UH-12E
- **Registration:** N752GB
- **FAR Part:** 091
- **Engines:** 1
- **Damage:** DEST
## Conditions
- **Light:** NR
- **Weather:** VMC
## Probable cause

The loss of the bolt that connects the lateral cyclic linkage push rod to the lower end of the upper firewall-mounted lateral cyclic linkage bellcrank, resulting in an uncontrolled descent into the terrain.

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*Source: [NTSB CAROL](https://data.ntsb.gov/carol-main-public/basic-search?source=ntsb&type=event&ntsb_number=SEA99FA013) · AI Analytics · CC0 1.0*