Aviation Accident Summaries

Aviation Accident Summary ERA11CA511

Miami, FL, USA

Aircraft #1

N804NN

BOEING 737-823

Analysis

According to crew statements, the airplane was descending through about 16,000 feet mean sea level in clear air when it encountered two jolts of turbulence that did not damage the airplane but resulted in a flight attendant being lifted off the deck and hitting the ceiling, then being thrown to the floor and breaking her ankle. The flight attendant was in the galley preparing for landing, and the seat belt sign was illuminated. The captain had previously deviated for weather, and the airplane was operating between cloud buildups at the time. The captain also noted that the air was relatively smooth, and that radar returns indicated that the airplane was more than 20 miles from any significant weather.

Factual Information

According to crew statements, the airplane was descending through approximately 16,000 feet in clear air when it encountered two jolts that did not damage the airplane, but resulted in a flight attendant being lifted off the deck and hitting the ceiling, then being thrown to the floor and breaking her ankle. The flight attendant was in the galley preparing for landing, and the seat belt sign was illuminated. The captain had previously deviated for weather, and the airplane was operating between cloud buildups at the time. The captain also noted that the air was relatively smooth, and that radar returns indicated that the airplane was greater than 20 miles from any significant weather.

Probable Cause and Findings

The in-flight encounter with clear air turbulence, which resulted in an injury to a cabin attendant.

 

Source: NTSB Aviation Accident Database

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