# NTSB Accident SEA91LA240
> **PIPER PA-28-161** · 1991-09-16 · ELLENSBURG, WA, USA · NONE
## Event
- **NTSB number:** SEA91LA240
- **Event ID:** 20001212X18201
- **Type:** Accident
- **Date:** 1991-09-16
- **Location:** ELLENSBURG, WA, USA
- **Coordinates:** 46.97089, -120.470787
## Injuries
- **Highest injury:** NONE
- **Fatal:** 0
- **Serious:** 0
- **Minor:** 0
- **Uninjured:** 3
- **Total aboard:** 3
## Aircraft
- **Make:** PIPER
- **Model:** PA-28-161
- **Registration:** N514PU
- **FAR Part:** 091
- **Engines:** 1
- **Damage:** SUBS
## Conditions
- **Light:** DAYL
- **Weather:** VMC
## Probable cause

THE PILOT'S FAILURE TO MAINTAIN TERRAIN CLEARANCE. CONTRIBUTING TO THE ACCIDENT WAS THE PILOT'S OVERCONFIDENCE IN THE AIRCRAFT'S ABILITY, AND FLIGHT IN A BOX CANYON WHERE REMEDIAL ACTION WAS NOT POSSIBLE.

---
*Source: [NTSB CAROL](https://data.ntsb.gov/carol-main-public/basic-search?source=ntsb&type=event&ntsb_number=SEA91LA240) · AI Analytics · CC0 1.0*