# NTSB Accident SEA08LA050
> **MCDONNELL DOUGLAS DC-9-83** · 2007-12-25 · Ontario, CA, USA · SERS
## Event
- **NTSB number:** SEA08LA050
- **Event ID:** 20080107X00024
- **Type:** Accident
- **Date:** 2007-12-25
- **Location:** Ontario, CA, USA
- **Coordinates:** 34.05611, -117.601112
## Injuries
- **Highest injury:** SERS
- **Fatal:** 0
- **Serious:** 2
- **Minor:** 0
- **Uninjured:** 112
- **Total aboard:** 114
## Aircraft
- **Make:** MCDONNELL DOUGLAS
- **Model:** DC-9-83
- **Registration:** N943AS
- **FAR Part:** 121
- **Engines:** 2
- **Damage:** —
## Conditions
- **Light:** DAYL
- **Weather:** VMC
## Probable cause

The lack of turbulence forecasts available to the flight crew, which resulted in the flight attendants not being seated when the flight encountered severe terrain-induced turbulence. Contributing to the accident were the terrain-induced turbulence, the failure of the company that provided the flight's weather briefing to forecast severe turbulence, and the failure of the dispatcher to provide the National Weather Service severe turbulence forecast to the flight.

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*Source: [NTSB CAROL](https://data.ntsb.gov/carol-main-public/basic-search?source=ntsb&type=event&ntsb_number=SEA08LA050) · AI Analytics · CC0 1.0*