Sender: "Marvin Kaye" <marv@lancaironline.net>
To: lml@lancaironline.net
Date: Thu, 27 Jan 2005 12:54:08 -0500
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From: "Mike S. Reinath" <Michael.S.Reinath@nasa.gov>
Subject:  Re: [LML] wet AOA indicator
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Last fall, I flew IFR from Santa Monica back to San Jose. Most of the 
flight was dry or on top, but the last 20 minutes were in the clouds 
in moderate to heavy rain. On final at RHV, I checked my AOA at about 
90 KIAS to verify my approach speed, as I always do, and discovered 
that I had all the green bars still lit, as if I was still at a 
cruise AOA (the rest of the pitot-static system was normal). As I 
flared, there was no change. Back at the hanger, I checked the water 
drain, but no water came out. I didn't have time to do further 
debugging then. A week later, I flew and the AOA was back to normal. 
(My sensing holes are also #60.) I'm not sure what the problem was, 
but it must have been water. It's the only time I have had a problem 
with the AOA in 450 hours.


Mike Reinath
N3602M 360 at 450 hrs TT
San Jose, CA (RHV)