# NTSB Accident MIA99FA188
> **Beech C90** · 1999-06-25 · MUNSON, FL, USA · FATL
## Event
- **NTSB number:** MIA99FA188
- **Event ID:** 20001212X19052
- **Type:** Accident
- **Date:** 1999-06-25
- **Location:** MUNSON, FL, USA
- **Coordinates:** 30.630722, -87.040588
## Injuries
- **Highest injury:** FATL
- **Fatal:** 2
- **Serious:** 0
- **Minor:** 0
- **Uninjured:** 0
- **Total aboard:** 2
## Aircraft
- **Make:** Beech
- **Model:** C90
- **Registration:** N3019W
- **FAR Part:** 135
- **Engines:** 2
- **Damage:** DEST
## Conditions
- **Light:** DAYL
- **Weather:** IMC
## Probable cause

The poor in-flight weather evaluation by the pilot-in-command and his operation of the airplane at an indicated airspeed greater than the design maneuvering speed (Va) in a thunderstorm contrary to the pilot's operating handbook resulting in an in-flight breakup.  A contributing factor in the accident was the failure of the pilot to obtain in-flight weather advisories with any air traffic control facility before encountering the adverse weather.

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*Source: [NTSB CAROL](https://data.ntsb.gov/carol-main-public/basic-search?source=ntsb&type=event&ntsb_number=MIA99FA188) · AI Analytics · CC0 1.0*