NTSB Identification: ERA09LA396
Scheduled 14 CFR Part 121: Air Carrier operation of JETBLUE AIRWAYS CORP
Accident occurred Friday, July 10, 2009 in Fort Myers, FL
Probable Cause Approval Date: 11/09/2009
Aircraft: AIRBUS A320-232, registration: N606JB
Injuries: 2 Serious,2 Minor,149 Uninjured.

NTSB investigators may not have traveled in support of this investigation and used data provided by various sources to prepare this aircraft accident report.

The airplane was descending through 12,500 feet on approach to the airport. The airplane was jolted as it flew through a small cumulus cloud. Specifically, the airplane dropped about 20 feet instantaneously, experiencing a positive g-load of 1.98, followed by a negative g-load of -0.43, less than 1 second later. During that time, a seated passenger did not have her seatbelt fastened. She fell forward into the stowed tray table in front of her, fracturing two ribs. A second passenger was in an aft lavatory and suffered two spinal fractures. The captain had made a passenger announcement during initial descent and prior to the turbulence encounter, emphasizing the need for passengers to take their seats and fasten their seatbelts when the seatbelt sign was illuminated. Additionally, a flight attendant made a public announcement when the seatbelt sign was illuminated. The seatbelt sign had been illuminated since 19,000 feet (about 4 minutes prior) and the airplane was not flying through any precipitation. The captain had also instructed the flight attendants via intercom to sit down a few minutes prior to the turbulence encounter.

The National Transportation Safety Board determines the probable cause(s) of this accident to be:

An inadvertent in-flight encounter with turbulence during approach. Contributing to the accident was the passengers' failure to follow the instructions of the illuminated seatbelt sign.

Full narrative available

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