So, somehow, customers were permitted to reposition the newer small Rudder Trim Control rotary knob much further forward.
Lack of future planning by Boeing, leaving no room on the pedestal. Then along comes an acars PFM box, and nobody knows where to put it. So it gets jammed at the back, and the rudder trim knob gets positioned further forwards.
And that can be half the problem. You look for a rotary knob half way along the pedestal, which is nowhere near the trim knob, and then find the trim knob instead, because someone has moved it.
737 pedestals are pick'n'mix, because no two aircraft are the same. You can spend several minutes trying to get an ADF frequency out of an HF box, if you are not careful.
BTW - why do we still have ADFs in the 21st century? Can an ILS DME not beep at 4 dme, to mark the OM?
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