Vemmelig ulykke med ERJ-190 i fjor - Curt Lewis

Report: Aeroméxico ERJ-190 accident at Durango due to windshear; unqualified pilots at the controls Status: Final Date: Tuesday 31 July 2018 Time: 15:22 Type: Embraer ERJ-190AR Operator: Aeroméxico Connect Registration: XA-GAL C/n / msn: 19000173 First flight: 2008 Total airframe hrs: 27257 Cycles: 18200 Engines: 2 General Electric CF34-10E6 Crew: Fatalities: 0 / Occupants: 5 Passengers: Fatalities: 0 / Occupants: 98 Total: Fatalities: 0 / Occupants: 103 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 2431 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 103 occupants survived but 14 suffered serious injuries. The aircraft arrived at Durango from Mexico City as flight 2430 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. In the flight crew on board flight AM2431 consisted of a captain, co-pilot and an observer. The observer was a licensed commercial pilot with type rating for Beech King Air planes. He was in the process of obtaining a type rating for Embraer jets and had accumulated 64 hours of simulator time. The captain allowed the obverver to take the right hand seat and the co-pilot occupied the jump seat. He also allowed the observer to act as Pilot Flying. 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). Probable Cause: Probable cause: "Impact against the runway caused by loss of control of the aircraft in the final phase of the take-off run by low altitude windshear that caused a loss of speed and lift". CONTRIBUTING FACTORS: Crew: (a) Decrease in situational awareness of the SLI2431 flight crew when the commander was performing unauthorized instructional tasks without being qualified to provide flight instruction and to assign co-pilot and Pilot Flying duties to a an uncertified and unlicensed pilot. (b) Failure to detect variations in the indicator displayed by the airspeed indicator on the PFD during the take-off run. (c) Lack of adherence to sterile cabin procedures and operational procedures (TVC; Changes of runway and/or take off conditions after door closings; Take off in adverse windshear conditions) established in the Flight Operations Manual, the Dispatch Manual and the Standard Operating Procedures of Aerolitoral, S. A. de C. V. Navigation Services in the Mexican Air Space: a) Lack of adherence to procedure 7.18 "Cizalleo a baja altura" published in the Manual de Gestión de Tránsito Aéreo de México, Ed.2018. b) Lack of adherence to the stipulated in point 7.4.1.2 Aerodrome and meteorological information, subsection 7.4.1.2.1 and 7.4.1.2.2 of the Manual de Gestión de Transito Aéreo de México, Ed. 2018, to provide information on important variations in wind direction and speed, value of visibility existing at the time of takeoff and significant meteorological conditions. c) Lack of supervisory personnel in TWR DGO. Accident investigation: Investigating agency:  DGCA Mexico  Status: Investigation completed Duration:  208 days (7 months) Accident number: ACCDTAFA034/2018MMDO Download report:  Final report https://aviation-safety.net/database/record.php?id=20180731-0 Back to Top