# NTSB Accident WPR17FA139
> **NORTH WING UUM INC SPORT X2 912** · 2017-07-01 · Chelan, WA, USA · FATL
## Event
- **NTSB number:** WPR17FA139
- **Event ID:** 20170702X44340
- **Type:** Accident
- **Date:** 2017-07-01
- **Location:** Chelan, WA, USA
- **Coordinates:** 47.920276, -119.86972
## Injuries
- **Highest injury:** FATL
- **Fatal:** 2
- **Serious:** 0
- **Minor:** 0
- **Uninjured:** 0
- **Total aboard:** 2
## Aircraft
- **Make:** NORTH WING UUM INC
- **Model:** SPORT X2 912
- **Registration:** N492XB
- **FAR Part:** 091
- **Engines:** —
- **Damage:** DEST
## Conditions
- **Light:** DAYL
- **Weather:** VMC
## Probable cause

The flight instructor's failure to maintain control of the aircraft while demonstrating a spiral dive, which resulted in a loss of control. Contributing to the accident was the instructor's decision to demonstrate a spiral dive maneuver at an altitude that was too low for recovery.

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*Source: [NTSB CAROL](https://data.ntsb.gov/carol-main-public/basic-search?source=ntsb&type=event&ntsb_number=WPR17FA139) · AI Analytics · CC0 1.0*