BOEING 777 223
Buenos Aires — December 12, 2015
Event Information
| Date | December 12, 2015 |
| Event Type | ACC |
| NTSB Number | DCA16CA050 |
| Event ID | 20160112X24550 |
| Location | Buenos Aires |
| Country | AR |
| Coordinates | -33.00000, -63.00000 |
| Highest Injury | SERS |
Aircraft
| Make | BOEING |
| Model | 777 223 |
| Category | AIR |
| FAR Part | 121 |
Conditions
| Light Condition | DAYL |
| Weather | Unk |
Injuries
| Fatal | 0 |
| Serious | 1 |
| Minor | 0 |
| None | 12 |
| Total Injured | 1 |
Event Location
Probable Cause
an inadvertant encounter with convective turbulence.
Full Narrative
On December 12, 2015, American Airlines flight 997, a Boeing 777, N784AN, encountered turbulence enroute to Ministro Pistarini International Airport, Buenos Aires, Argentina (EZE) during a regularly scheduled passenger flight from Dallas-Fort Worth International Airport (DFW), Dallas, Texas. The aircraft was approximately 250 NM from EZE and deviating north of the filed routing to avoid a strong convective area near thunderstorms. The flight crew had advised the flight attendants (FA) that the flight could encounter turbulence in approximately 15 minutes and they should be seated. The fasten seatbelt sign was on. While two FA's were securing the galley, the flight encountered the region of strong/severe turbulence earlier than expected. One FA was thrown to the floor and fell resulting in a broken arm. There were no passenger injuries and no damage to the airplane. The JIAIAC of Argentina delegated the investigation to the NTSB, who accepted the delegation.
About This NTSB Record
This aviation event was investigated by the National Transportation Safety Board (NTSB). NTSB investigates all U.S. civil aviation accidents to determine probable cause and issue safety recommendations to prevent future accidents.