# NTSB Accident CHI05FA038
> **Hamburger Flugzeugbau (HFB) HFB 320 Hansa** · 2004-12-01 · Chesterfield, MO, USA · FATL
## Event
- **NTSB number:** CHI05FA038
- **Event ID:** 20041208X01952
- **Type:** Accident
- **Date:** 2004-12-01
- **Location:** Chesterfield, MO, USA
- **Coordinates:** 38.664443, -90.702499
## Injuries
- **Highest injury:** FATL
- **Fatal:** 2
- **Serious:** 0
- **Minor:** 0
- **Uninjured:** 0
- **Total aboard:** 2
## Aircraft
- **Make:** Hamburger Flugzeugbau (HFB)
- **Model:** HFB 320 Hansa
- **Registration:** N604GA
- **FAR Part:** 091
- **Engines:** 2
- **Damage:** DEST
## Conditions
- **Light:** NDRK
- **Weather:** IMC
## Probable cause

The maintenance facility failed to properly install and inspect the elevator trim system resulting in the reversed elevator trim condition and the pilot's failure to maintain clearance with the terrain.  Contributing factors included the dark night and low ceiling.

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*Source: [NTSB CAROL](https://data.ntsb.gov/carol-main-public/basic-search?source=ntsb&type=event&ntsb_number=CHI05FA038) · AI Analytics · CC0 1.0*