Just curious if anyone has ever suspected ACF-50 or
other corrosion treatment as being bad for some
plastic / bakelite type parts? The reason I ask is that
my C172 had been treated with ACF-50 in years past via
the previous owner. I had a flap failure one day
and discovered the cause was the microswitches
in the right wing that sense flap full-up / full-down
position. Both switch cases had broken down to the point
that just touching them caused them to crumble into
pieces. I'd never seen anything like that before, and
I've handled a lot of old microswitches. The only
possible explaination I could offer was that the ACF-50
might have damaged the hard plastic case on the microswitches.

Of course maybe it was some other lubricant or cleaner that
had been sprayed into that area inside the wing.

Anybody else ever see anything like this?

Ronnie

"Dan Luke" wrote in message
...

wrote:

Based on his inspection of our Arrow's airframe during its current
annual,
our mech is recommending a Corrosion X treatment. Anybody have one done
at
one the authorized Corrosion X Treatment Centers? Feedback, good or bad?
Cost? How long did it take? I'll go ahead and call the nearest center
(which is not exactly convenient) but thought I'd ask for opinions and
advice from the group first.

Getting it done is no big deal. I have it done to my airplane every other
annual.

My airplane has been parked two miles from Mobile Bay for six years and
shows no signs of airframe corrosion.

--
Dan
C172RG at BFM