That reminds me …
after the levee landing ; in heavy rain we had to use 55% N1 or so on 737-300s . That was basically approach power ; and to fit in the LHR approach sequence became challenging . So …when one or the other of us started singing Don Mclean’s American Pie …
‘‘’ Bye, bye Miss American Pie
Drove my Chevy to the levee but the levee was dry
And them good ole boys were drinking whiskey and rye
Singin' this'll be the day that I die
This'll be the day that I die ‘’’
You knew it was time for gear and full speedbrake , fully close one throttle , [ ' risk it for a biscuit '] the other at 55% N1 and sideslip her down .
A long descent like this , we might bring idle one to 55% and idle the 55%er , sideslipping in the opposite direction
Took a redesign of the engine nose cowl / spinner shape , and other bits to cure the rain prob , and the CFM56 lost it’s ‘’C**ppy French Motor ‘’ sobriquet . Excellent engine since .
Rgds condor