# NTSB Accident CHI94LA022
> **HILLER UH12E** · 1993-10-22 · SIOUX RAPIDS, IA, USA · NONE
## Event
- **NTSB number:** CHI94LA022
- **Event ID:** 20001211X13543
- **Type:** Accident
- **Date:** 1993-10-22
- **Location:** SIOUX RAPIDS, IA, USA
- **Coordinates:** 42.889141, -95.140396
## Injuries
- **Highest injury:** NONE
- **Fatal:** 0
- **Serious:** 0
- **Minor:** 0
- **Uninjured:** 1
- **Total aboard:** 1
## Aircraft
- **Make:** HILLER
- **Model:** UH12E
- **Registration:** N4026S
- **FAR Part:** 137
- **Engines:** 1
- **Damage:** DEST
## Conditions
- **Light:** DAYL
- **Weather:** VMC
## Probable cause

the Pilot in Command failed to maintain clearance with the terrain while proceeding up an upslope.

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*Source: [NTSB CAROL](https://data.ntsb.gov/carol-main-public/basic-search?source=ntsb&type=event&ntsb_number=CHI94LA022) · AI Analytics · CC0 1.0*