# NTSB Accident MIA92MA131
> **CASA 212** · 1992-06-07 · MAYAGUEZ, PR · FATL
## Event
- **NTSB number:** MIA92MA131
- **Event ID:** 20001211X14941
- **Type:** Accident
- **Date:** 1992-06-07
- **Location:** MAYAGUEZ, PR
## Injuries
- **Highest injury:** FATL
- **Fatal:** 5
- **Serious:** 0
- **Minor:** 0
- **Uninjured:** 0
- **Total aboard:** 5
## Aircraft
- **Make:** CASA
- **Model:** 212
- **Registration:** N355CA
- **FAR Part:** 135
- **Engines:** 2
- **Damage:** DEST
## Conditions
- **Light:** DAYL
- **Weather:** IMC
## Probable cause

THE FAILURE OF THE BETA BLOCKING DEVICE FOR UNDETERMINED REASON(S), AND THE SECOND-PILOT'S INADVERTENT ACTIVATION OF THE POWER LEVER, OR LEVERS, AFT OF THE FLIGHT IDLE POSITION AND INTO THE BETA RANGE, RESULTING IN A LOSS OF AIRPLANE CONTROL.

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*Source: [NTSB CAROL](https://data.ntsb.gov/carol-main-public/basic-search?source=ntsb&type=event&ntsb_number=MIA92MA131) · AI Analytics · CC0 1.0*