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ACRO E-mail Archive Thread: [Acro] Pitts S2B aileron nose ribs

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ACRO E-mail Archive Thread: [Acro] Pitts S2B aileron nose ribs


Thread: [Acro] Pitts S2B aileron nose ribs

Message: [Acro] Pitts S2B aileron nose ribs

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From: "Michael Angiulo" <mikeang at>

Date: Thu, 18 Apr 2002 18:03:24 UTC


I'm looking at a Pitts S2B (1988 Christen Pitts) for sale and just
finished a prepurchase inspection.  The plane is pretty young with 300
hours total time and was clean except for one thing.  Each of the four
ailerons had the same condition: the outboard aileron nose rib, while
being securely attached to the aileron spar, was 'leaned over' towards
the inboard direction where the rib meets the aileron leading edge skin.
If this doesn't make sense, imagine taking your finger and pushing the
nose rib inward.  the aft attachment to the spar stays attached but the
rib slides inward to a 20 or 30 degree angle.  The nose rib doesn't seem
to be attached to the aileron leading edge skin except by friction or
some nonexistent glue.
Is this a usual condition?  should I suspect something happened?  there
is no other damage history or evidence and all four ribs seem to have
this exact same condition.  Any ideas?
-Mike Angiulo
mike at
N24658 C182S
N???? Pitts S-1-SS project
Attachement 1: part2.html


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