Unknown item in W&B

[JAG]

Jim,
Look closely at the original factor W&B - many times the aircraft was "computed" and not "actual" weight - that could explain the turbo system being listed separate. See snap shot of my original - it calculated the paint! depending on your configuration, they are all listed in the equipment list with annotations either as installed (have an 'x') and whether it is optional or required equipment.

My guess is the 159 lbs is the extra weight for you aircraft as optioned over the standard airplane weight.

Jeff