# NTSB Accident IAD03MA049
> **Sino-Swearingen SJ30-2** · 2003-04-26 · Loma Alta, TX, USA · FATL
## Event
- **NTSB number:** IAD03MA049
- **Event ID:** 20030515X00671
- **Type:** Accident
- **Date:** 2003-04-26
- **Location:** Loma Alta, TX, USA
- **Coordinates:** 29.872777, -100.96083
## Injuries
- **Highest injury:** FATL
- **Fatal:** 1
- **Serious:** 0
- **Minor:** 0
- **Uninjured:** 0
- **Total aboard:** 1
## Aircraft
- **Make:** Sino-Swearingen
- **Model:** SJ30-2
- **Registration:** N138BF
- **FAR Part:** 091
- **Engines:** 2
- **Damage:** DEST
## Conditions
- **Light:** DAYL
- **Weather:** VMC
## Probable cause

The manufacturer's incomplete high-Mach design research, which resulted in the airplane becoming unstable and diverging into a lateral upset.

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*Source: [NTSB CAROL](https://data.ntsb.gov/carol-main-public/basic-search?source=ntsb&type=event&ntsb_number=IAD03MA049) · AI Analytics · CC0 1.0*