# NTSB Accident DEN00FA021
> **Piper PA-18-125** · 1999-11-28 · AFTON, WY, USA · FATL
## Event
- **NTSB number:** DEN00FA021
- **Event ID:** 20001212X20086
- **Type:** Accident
- **Date:** 1999-11-28
- **Location:** AFTON, WY, USA
- **Coordinates:** 42.720764, -110.920967
## Injuries
- **Highest injury:** FATL
- **Fatal:** 2
- **Serious:** 0
- **Minor:** 0
- **Uninjured:** 0
- **Total aboard:** 2
## Aircraft
- **Make:** Piper
- **Model:** PA-18-125
- **Registration:** N1132A
- **FAR Part:** 091
- **Engines:** 1
- **Damage:** DEST
## Conditions
- **Light:** NR
- **Weather:** IMC
## Probable cause

Failure of the pilot to remove frost from the wings prior to takeoff, causing an inadvertent stall/spin on initial climbout.  Factors included exceeding the aircraft's certificated gross weight, and fog conditions.

---
*Source: [NTSB CAROL](https://data.ntsb.gov/carol-main-public/basic-search?source=ntsb&type=event&ntsb_number=DEN00FA021) · AI Analytics · CC0 1.0*