Sender: <marv@lancaironline.net> (Marvin Kaye)
To: lml@lancaironline.net
Date: Sat, 25 Oct 2003 11:08:26 -0400
Message-ID: <redirect-2650498@logan.com>
From: "Andres Katz" <bucker131@hotmail.com>
Subject: prop strike hartzell 3 bladed IV-P
Mime-Version: 1.0
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sadly this weekend while checking on my alternator failure I discovered a 
prop strike  on one of the three hartzell scimitar blades on my IV. The only 
landing I recall was at Las Cruces which is paved and we did not get of the 
runway or taxiways during our stay there. I called Hartzell and they send me 
their specs. I removed the spinner and the only missing thing is a rivet 
head from one of the k-nuts that hold the spinner to the rear round glass 
cover. the rivet head in all other k-nuts are intact and in place but look a 
bit larger suggesting some movement but not loose yet. I will have to repair 
the one loose and consider glassing the exposed ends externally around the 
ring to prevent another similar problem. I am not sure that the rivet head 
did the damage since the damage is larger than the head. I have a 6 mm ulcer 
at the rear edge of the blade, some distortion of the rear edge for 4 cms 
from the ulcer to the hub and a 3 mm crater in the center of the posterior 
aspect of the blade closer to the hub probably 3inches from the junction 
between spinner and exposed blade. Hartzell suggests limits for repair to be 
6.5 mm at either edge and 3,5 mm along the core. anyone can share experience 
and suggest alternatives. I flew the plane 500 miles and did not note any 
vibrations or differences in flight behavior.
andres 18ak

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