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Last updated: 25 September 2018
Status:Preliminary
Date:Tuesday 31 July 2018
Time:15:22
Type:Silhouette image of generic E190 model; specific model in this crash may look slightly different
Embraer ERJ-190AR
Operator:Aeroméxico Connect
Registration: XA-GAL
C/n / msn: 19000173
First flight: 2008
Total airframe hrs:27257
Engines: 2 General Electric CF34-10E6
Crew:Fatalities: 0 / Occupants: 6
Passengers:Fatalities: 0 / Occupants: 99
Total:Fatalities: 0 / Occupants: 105
Aircraft damage: Destroyed
Aircraft fate: Written off (damaged beyond repair)
Location:Durango-Guadalupe Victoria Airport (DGO) (   Mexico)
Phase: Takeoff (TOF)
Nature:Domestic Scheduled Passenger
Departure airport:Durango-Guadalupe Victoria Airport (DGO/MMDO), Mexico
Destination airport:Mexico City-Benito Juárez International Airport (MEX/MMMX), Mexico
Flightnumber:AM2431
Narrative:
Aeroméxico Flight AM2431 operated by an Aeroméxico Connect Embraer ERJ-190 impacted airport terrain shortly after commencing takeoff from runway 03 at Guadalupe Victoria International Airport (MMDO), Durango, and a post-impact fire ensued. All 105 occupants survived but 49 suffered injuries that required hospitalization.
The aircraft arrived at Durango from Mexico City as flight AM2430 at 14:11 hours local time, 23 minutes ahead of schedule. As the ERJ-190 was prepared for the return flight there was a broken layer of cumulonimbus clouds at 2500 feet. Airport weather information shows that a thunderstorm had developed by 15:18 hours local time and the temperature had dropped from 28°C to 20°C over the previous hour.
On board flight AM2431 were two flight crew members, an observer, three cabin crew members and 99 passengers. The aircraft commenced the takeoff roll on runway 03 at 15:22 hours local time (planned departure time was 15:09 hours).
During the takeoff roll there were notable variations in airspeed and wind direction. At 15:22:42 hours, the aircraft was accelerating through an airspeed of 146 knots. Wind at that time was 47 degrees (from the right-hand side) at 33 knots. Eight seconds later the aircraft had rotated and was climbing through 8 feet radio altitude at an airspeed of 145 knots. By that time the wind had shifted to a crosswind: 103 degrees at 11 knots. The aircraft reached a highest altitude of about 30 feet. At 15:22:56 hours, the aircraft had descended to 19 feet and was caught in a 22-knot tailwind of 30 degrees.
The aircraft then hit the ground to the left of the runway, left wing first. Both engines broke away during the subsequent ground slide. The aircraft came to rest about 380 meters past the runway threshold and 320 meters past the paved end of the runway, slightly to the left of the extended centreline. The length of runway 03 is 2900 m (9514 ft).

On September 5, 2018, the investigation committee reported issued a preliminary report, stating the engines of the aircraft were functioning normally. It appeared the flight encountered a microburst (windshear) phenomenon with descending and rapidly changing wind.

Classification:
Windshear/downdraft
Loss of control

Sources:
» Aéromexico statement
» 24-horas.mx

METAR Weather report:
18:44 UTC / 13:44 local time:
MMDO 311844Z 12003KT 12SM BKN025TCU BKN200 26/11 A3026 RMK 8/201 ISOL CB

19:41 UTC / 14:41 local time:
MMDO 311941Z 01005KT 10SM BKN025CB 28/10 A3023 RMK 8/300

20:18 UTC / 15:18 local time:
MMDO 312018Z 07003KT 7SM TSRA BKN020CB 20/13 A3023 RMK 8/900 TSRAB13

21:03 UTC / 16:03 local time:
MMDO 312103Z RTD 28007KT 7SM OVC015CB 17/14 A3024 RMK SLP118 57014 956 8/9 // PISTA CERRADA POR ACFT ACCIDENTADA


Photos

photo of Embraer ERJ-190AR 	XA-GAL
photo of Embraer ERJ-190AR XA-GAL
FDR parameters of takeoff
photo of Embraer ERJ-190AR XA-GAL
photo of Embraer ERJ-190AR 	XA-GAL
photo of Embraer ERJ-190AR 	XA-GAL
Flight AM675 to MEX, three days before the accident
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Aircraft history
date registration operator remarks
2008 PT-SDI Embraer first flight
21 May 2008 N960UW US Airways
Nov. 2009 N960UW Republic Airlines op. for Midwest Airlines
Dec. 2009 N167HQ Republic Airlines new registration
27 June 2014 XA-GAL Aeroméxico Connect

Map
This map shows the airport of departure and the intended destination of the flight. The line between the airports does not display the exact flight path.
Distance from Durango-Guadalupe Victoria Airport to Mexico City-Benito Juárez International Airport as the crow flies is 763 km (477 miles).
Accident location: Exact; deduced from official accident report.

This information is not presented as the Flight Safety Foundation or the Aviation Safety Network’s opinion as to the cause of the accident. It is preliminary and is based on the facts as they are known at this time.
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