Hello to all. I am new to this board and have my own aircraft
maintenance business. I work on mostly Pipers but also a Sierra that
may be for sale soon. I think you would find that the 180 Comanche is a
fine plane but you need to have it maintained by someone who
understands the landing gear system. So many of the old ones have been
bellied in at one time in their past. The Sierra does have a roomy
cabin and a short CG range. I had to change the landing gear doughnuts
on this model and it's not a job I want to do again any time soon.
First of all, you have to rent a special tool from Beech and they want
a $2000.00 deposit before they will send it to you. I think it cost
about $200.00 to use it plus the shipping charges both ways. If you
don't change the doughnuts ($900.00 worth) when they are sagging, you
might find the gear don't fit in the wheel wells they way they are
supposed to. The gear may or may not extend all the way when you leave
the ground, and one or the other will hit the up lock bracket and stay
there, instead of snapping into place. I changed every oring on the
hydraulic system cylinders (at owners request) and found the retract
cycle went from over 30 seconds to 14 seconds. Someone had put an oring
in the left cylinder that was too skinny to fill a groove on the
piston. I once did a prebuy on a Sundowner and found intergranular
corrosion on the left spar in two places. Aft side, lower web, near the
tip and just outboard of the fuel tank area. Beech has an approved
repair kit for this so you know it has been seen before. Also, don't
buy one of these planes with a fuel stain under the wings. Leaks can be
hard to fix in the wet wing fuel tanks. Finally, show me a plane where
they had to hang a ball of lead ballast on it and I'll show you an AD
note. This goes for other brands too.