Aviation Accident Summaries

Aviation Accident Summary MIA90LA152

MIAMI, FL, USA

Aircraft #1

GAWNL

BOEING 747-136

Analysis

FLT ENCOUNTERED SEVERE TURBULENCE WHILE DESCENDING THROUGH 12,300 FEET ON APPROACH TO MIAMI INTERNATIONAL AIRPORT. WEATHER STUDIES INDICATED THE AIRCRAFT WAS IN AT LEAST MODERATE THUNDERSTORM ACTIVITY AND NEAR AN AREA OF VERY HEAVY OR LEVEL 4 ACTIVITY. FLIGHT RECORDER DATA INDICATED PEAK G FORCES WERE ENCOUNTERED 40 SECONDS AFTER TURBULENCE ENCOUNTER. PEAK G FORCES WERE FROM 1.5 TO -0.5 G OVER A THREE SECOND PERIOD.

Probable Cause and Findings

THE INADVERTENT ENCOUNTER WITH SEVERE TURBULENCE WHILE OPERATING IN AN AREA OF THUNDERSTORM ACTIVITY.

 

Source: NTSB Aviation Accident Database

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