Incident Overview

Date: Saturday 28 April 2007
Aircraft Type: ATR 72-212
Owner/operator: Executive Airlines
Registration Number: N407AT
Location: San Juan, PR – ÿ Puerto Rico
Phase of Flight: En route
Casualties: Fatalities: 0 / Occupants: 53
Component Affected: AircraftAircraft
Investigating Agency: NTSBNTSB
Category: Accident
The Captain issued an alert to prepare for landing at San Juan, Puerto Rico, informing the flight attendants of potential turbulence. Following descent, the aircraft entered a broken layer of clouds, experiencing brief turbulence. A sudden ‘jolt’ of turbulence occurred, causing injuries to two individuals, including a flight attendant and a passenger who had been in the lavatory. The flight data recorder and cockpit voice recorder were sent for analysis, revealing information related to the turbulence event. The Captain?s actions ? providing verbal warnings and activating the fasten seatbelt sign ? are considered probable causes of the incident.The Captain issued an alert to prepare for landing at San Juan, Puerto Rico, informing the flight attendants of potential turbulence. Following descent, the aircraft entered a broken layer of clouds, experiencing brief turbulence. A sudden ‘jolt’ of turbulence occurred, causing injuries to two individuals, including a flight attendant and a passenger who had been in the lavatory. The flight data recorder and cockpit voice recorder were sent for analysis, revealing information related to the turbulence event. The Captain?s actions ? providing verbal warnings and activating the fasten seatbelt sign ? are considered probable causes of the incident.

Description

The Captain made the announcement to prepare for the approach to land at San Juan, Puerto Rico, he alerted the flight attendants of the possibility of encountering turbulence, and asked that everyone remain seated. After initiated the descent the airplane entered a broken layer of clouds, encountering light turbulence, followed by a momentary “jolt” of turbulence. As the airplane encountered the momentary “jolt”, both flight attendants who were walking to their seats, and one passenger, who had been in the lavatory, were thrown and received injuries. Both the flight data recorder and the cockpit voice recorder were sent to the NTSB’s Recorder Laboratory for readout, and when examined was found to contain information related to the turbulence event. The information showed that the Captain had both provided verbal warning of potential turbulence and had activated the fasten seatbelt sign well in advance of the turbulence event. Probable Cause: In-flight encounter with turbulence that resulted in injuries to a flight attendant and a passenger.

Primary Cause

In-flight encounter with turbulence.In-flight encounter with turbulence.

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