# NTSB Accident SEA03FA179
> **Aero Commander Callair A-9B** · 2003-08-25 · Driggs, ID, USA · NONE
## Event
- **NTSB number:** SEA03FA179
- **Event ID:** 20030903X01448
- **Type:** Accident
- **Date:** 2003-08-25
- **Location:** Driggs, ID, USA
- **Coordinates:** 43.738609, -111.091941
## Injuries
- **Highest injury:** NONE
- **Fatal:** 0
- **Serious:** 0
- **Minor:** 0
- **Uninjured:** 1
- **Total aboard:** 1
## Aircraft
- **Make:** Aero Commander
- **Model:** Callair A-9B
- **Registration:** N7924V
- **FAR Part:** 091
- **Engines:** 1
- **Damage:** SUBS
## Conditions
- **Light:** DAYL
- **Weather:** VMC
## Probable cause

A loss of engine power due to the improper installation of a counterweight roller pin retaining washer circlip, leading to the circlip coming out of its groove and the counterweight roller pin coming in contact with two of the engines connecting rods.  Contributing to the accident were the fence and the uneven terrain.

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*Source: [NTSB CAROL](https://data.ntsb.gov/carol-main-public/basic-search?source=ntsb&type=event&ntsb_number=SEA03FA179) · AI Analytics · CC0 1.0*