Would a 737 with Engine Failure on Take Off (after a single engine birdstrike) be trained to continue the climb initially to an altitude of ..... (feet) or to level off initially and immediately initiate a return to the field?
Keep climbing until you reach/exceed the related MSA. A shallow climb or even almost level segment (around 200fpm) can be expected at MFRA (minimum flap retraction alt - 1000' AGL usually) to allow for clean up. At airports such as EHAM, where terrain isn't a factor, this will involve climbing ahead on the extended runway centreline until reaching MSA. Once there, the usual steps are to devise a plan with the aid of the QRH (and other information available). In this case i.e severe damage, it will be to 'land at the nearest suitable airport.' Please also remember that ATC would be fully aware of their problem. It would be their decision to vector the aircraft over Haarlem (knowing that it was single engine) once the crew had accepted/requested radar vectors. At an airport such as AMS I would be very surprised that the crew would be wishing to navigate their a/c by any other means. Work load would have been high in the flightdeck (much checklist negotiation, system analysis, crew involvement) and ATC will always be there to help. My philosophy would be to allow them.