Microburst factor in Aeroméxico Embraer ERJ-190 takeoff accident at Durango, Mexico

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howie
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Microburst factor in Aeroméxico Embraer ERJ-190 takeoff accident at Durango, Mexico

#1

Post by howie » Sat Sep 08, 2018 9:01 am

Microburst factor in Aeroméxico Embraer ERJ-190 takeoff accident at Durango, Mexico
6 September 2018
Investigators issued a preliminary report on the Aeroméxico Embraer ERJ-190 takeoff accident at Durango, Mexico, stating a microburst (windshear) event was a factor.

On July 31, 2018, 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.

The investigators issued a preliminary report on September 5, stating the flight encountered a microburst (windshear) phenomenon with descending and rapidly changing wind. In more detail the flight data recorder shows that the aircraft commenced the takeoff roll on runway 03 at 15:22 hours local time. 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.

The investigation is ongoing. The final results will be published in November 2018.



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Re: Microburst factor in Aeroméxico Embraer ERJ-190 takeoff accident at Durango, Mexico

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Post by Raffles » Sat Sep 08, 2018 3:36 pm

The question is why did they attempt to take off during a storm? It must have been obvious.



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Re: Microburst factor in Aeroméxico Embraer ERJ-190 takeoff accident at Durango, Mexico

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Post by Propnut » Sun Sep 09, 2018 11:29 am

We had a micro-burst on the plot yesterday during the thunderstorms. Wind was NW and constant. Suddenly a burst for 10 sec from the E that blew a lot harder throwing the leaves back into the air. Quite something to feel as the conditions soon resumed a steady NW blow. I can now understand what the effect must be in the aviation world.



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Re: Microburst factor in Aeroméxico Embraer ERJ-190 takeoff accident at Durango, Mexico

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Post by howie » Sun Sep 09, 2018 1:38 pm

Propnut wrote:
Sun Sep 09, 2018 11:29 am
We had a micro-burst on the plot yesterday during the thunderstorms. Wind was NW and constant. Suddenly a burst for 10 sec from the E that blew a lot harder throwing the leaves back into the air. Quite something to feel as the conditions soon resumed a steady NW blow. I can now understand what the effect must be in the aviation world.
I see that you guys had a lot of rain yesterday. My old school Thomas More was hosting a get together and put out photos of how the school fields were flooded. With our dams nearing 70% we have sent some your way.



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Re: Microburst factor in Aeroméxico Embraer ERJ-190 takeoff accident at Durango, Mexico

#5

Post by Bell 407 » Mon Sep 10, 2018 7:18 am

Thanks for the rain, much needed anywhere I guess. But yes, was quite a down poor indeed :yikes:



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