Assumed temperature take-off after de-icing - Boeing 737NG
My company has a policy not to permit assumed temperature take-off thrust reductions after an aircraft has been de-iced. When questioned, the powers that be respond that this is a Boeing recommendation and is due to residual fluid left on the wings causing a reduction in lift, therefore full thrust take-off's are mandated.
Looking at the Boeing FCOM for the 737NG this is not the case. Boeing specifically permit assumed temperature reductions after de-icing (interestingly this also used to be included as a paragraph in the FCTM but has been removed).
I would be interested to hear of other people's experience and views on this subject.