KIS-List Digest Archive

Mon 12/08/14


Total Messages Posted: 1



Today's Message Index:
----------------------
 
     1. 04:50 PM - Re: TR-1 Incident down under (Mike Pienaar)
 
 
 


Message 1


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    Time: 04:50:05 PM PST US
    From: "Mike Pienaar" <mjpienaar@shaw.ca>
    Subject: Re: TR-1 Incident down under
    Hi Scott Would you recommend these gear installation blocks for the TR4 as well? Thanks Mike ----- Original Message ----- From: "Scott Stearns" <sstearns2@yahoo.com> Sent: Thursday, November 27, 2014 11:58 AM Subject: Re: KIS-List: TR-1 Incident down under > > I would recommend updating the gear installation using these gear blocks. > The blocks allow the gear to flex without affecting the bolts and they > allow the bolts to be properly preloaded. > > http://www.groveaircraft.com/radiusplates.html > > Scott > >> On Nov 26, 2014, at 6:38 AM, "mark_trickel" <marktrickel@gmail.com> >> wrote: >> >> >> KIS Incident Down Under >> >> With regret, I post this news from Australia - Michael Pattens TR-1 main >> gear collapsed during roll out after touchdown when one of the attach >> bolts let lose: >> >> Airframe event involving a Amateur Built Aircraft KIS TR-1, VH-AIG, >> Taree, Aerodrome, NSW on 9 September 1996. >> Following an uneventful flight, the pilot reported that the aircraft >> touched down normally. After rolling about 80 m the right wing dropped >> and the pilot suspected a tire had failed. But about 50 m further on he >> heard pronounced scraping noises and the aircraft slewed right then left >> before finally coming to a halt about 10 m to the left of the runway. A >> subsequent inspection of the aircraft revealed that the fixed landing >> gear attachment bolts had failed at the countersunk heads. The failure >> faces contained rust deposits, indicating the bolts had been cracked for >> some time prior to the accident. The manufacturer has subsequently >> changed the design specification to fit standard flat head bolts in place >> of countersunk bolts. >> >> The complete report is located here: >> http://www.atsb.gov.au/publications/investigation_reports/1996/aair/199602857.aspx >> >> I ran out to my hanger/shed, and checked mine (my TR-1C is a very early >> kit #23), it has the round Allen head bolts which are recessed into the >> attach bracket I will be checking them for any signs of corrosion or >> cracking, and I recommend you check yours too. Can anybody confirm that >> there was a change to a counter sunk flat head bolt??? Galin while you >> are down for repairs you may want to consider replacing these main gear >> bolts. >> >> Mark T. >> >> >> >> >> Read this topic online here: >> >> http://forums.matronics.com/viewtopic.php?p=434702#434702 >> >> >> >> >> >> >> >> >> >> > > >




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