# NTSB Accident DEN90LA108
> **PIPER PA-18-150** · 1990-05-10 · POWDERVILLE, MT, USA · NONE
## Event
- **NTSB number:** DEN90LA108
- **Event ID:** 20001212X23130
- **Type:** Accident
- **Date:** 1990-05-10
- **Location:** POWDERVILLE, MT, USA
- **Coordinates:** 46.219978, -105.60057
## Injuries
- **Highest injury:** NONE
- **Fatal:** 0
- **Serious:** 0
- **Minor:** 0
- **Uninjured:** 1
- **Total aboard:** 1
## Aircraft
- **Make:** PIPER
- **Model:** PA-18-150
- **Registration:** N62672
- **FAR Part:** 091
- **Engines:** 1
- **Damage:** SUBS
## Conditions
- **Light:** DAYL
- **Weather:** VMC
## Probable cause

PILOT FAILED TO MAINTAIN TERRAIN CLEARANCE DURING DESCENT ON AN AERIAL APPLICATION SWATH RUN, RESULTING IN AN IN FLIGHT COLLISION WITH THE TERRAIN. THAT THE PILOT MISJUDGED THE PULL UP ALTITUDE IS CONSIDERED A CONTRIBUTING FACTOR.

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*Source: [NTSB CAROL](https://data.ntsb.gov/carol-main-public/basic-search?source=ntsb&type=event&ntsb_number=DEN90LA108) · AI Analytics · CC0 1.0*