# NTSB Accident CEN18LA146
> **CESSNA T303** · 2018-04-24 · Pine Ridge, SD, USA · MINR
## Event
- **NTSB number:** CEN18LA146
- **Event ID:** 20180424X33220
- **Type:** Accident
- **Date:** 2018-04-24
- **Location:** Pine Ridge, SD, USA
- **Coordinates:** 43.183055, -102.559997
## Injuries
- **Highest injury:** MINR
- **Fatal:** 0
- **Serious:** 0
- **Minor:** 3
- **Uninjured:** 1
- **Total aboard:** 4
## Aircraft
- **Make:** CESSNA
- **Model:** T303
- **Registration:** N9746C
- **FAR Part:** 135
- **Engines:** 2
- **Damage:** SUBS
## Conditions
- **Light:** DAYL
- **Weather:** IMC
## Probable cause

The airplane’s inadvertent encounter with severe icing conditions during descent, which resulted in structural icing, the pilot’s inability to maintain altitude, and an emergency landing. Contributing to the accident was an incomplete preflight weather briefing.

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*Source: [NTSB CAROL](https://data.ntsb.gov/carol-main-public/basic-search?source=ntsb&type=event&ntsb_number=CEN18LA146) · AI Analytics · CC0 1.0*