Plane crash in Houston today

MD-87 n987ak

 

Could this be another flap deployment issue prior to take off?

 

i see this jet all the time at that airport. it is where i buy my jet a for my model jets. it will be interesting to hear the cause. it never broke ground.

 

http://www.kathrynsreport.com/2021/10/mcdonnell-douglas-md-87-n987ak-accident.html

 

That was my thought as well, Bob.

 

Most of the comments here center on the possibility of a jammed elevator, which has happened before. Apparently the elevators are controlled by the trailing-edge tabs, which are the only things connected to the control stick.

 

The screwjacks have caused several crashes in the MD-80 series.

 

From what I can determine in the photo of the elevators, the trim tabs were in the down position that would produce up elevator and the elevators appear to be in the neutral position.

 

I think there needs to be some airflow in order for the trim tabs to move the elevators

 

I know that, I thought that I read somewhere that they had 150 mph established but couldn't get airborne.

 

I assumed you were looking at the crash photos, so the position of the trim tabs and elevators would not have much relevance to what occurred during the TO roll, IMO.

 

Miracle everybody got out alive and pretty much unharmed except for one strained back.

 

I was thinking back to many years about the control system of the 727. Three hydraulic systems . A , B, and Standby that powered the control surfaces. Then there were aerodynamic balance panels and trim tabs. I don't remember any trouble with a stabilizer jackscrew. That airplane had the most powerful and reliable control and high lift system of anything airborne. That entire system was essentially translated to the 747. . I'm going back some 60 years from when I was a training instructor on this stuff so I think that it is correct. The 727 had a faster roll rate than a P-51 when all of the ailerons (high speed and low speed) were activated. Helluva airplane!