Quote:
Originally Posted by BoilerUP
How many CRJs rolled upside down after takeoff due to excessive pitch? 
I don't think you can really blame the airplane for pilots not ensuring they have a clean wing.... |
(d) This AD results from reports of uncommanded roll during take-off. We are issuing this AD to prevent possible loss of control on take-off resulting from even small amounts of frost, ice, snow, or slush on the wing leading edges or forward upper wing surfaces.
That AD requires revising the airplane flight manuals (AFMs) to include new cold weather operations limitations and procedures. That AD resulted from reports of uncommanded roll during take-off. The actions specified in that AD are intended to prevent possible loss of control on take-off resulting from even small amounts of frost, ice, snow, or slush on the wing leading edges or forward upper wing surfaces.
You can find the AD here
http://rgl.faa.gov/Regulatory_and_Gu...2008-21-09.pdf
The special take-off procedures for winter operation is turning off the flight director. We just changed our procedures so that we do that all the time instead of just during the winter. I guess i shouldn't have said crj but the CL-600-2B19 (Regional Jet Series 440) and CL-600-2B19 (Regional Jet Series 100). The crashes that occured were the corporate models. The problem was the FD was giving incorrect info and calling for high nose up pitch when the planes lift couldn't accept it causing the wing to stall and roll.