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08-08-2016, 05:37 PM
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Join Date: Nov 2010
Location: Houston, Texas
Posts: 212
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I just discovered I have one of the governors that is covered by SB 27. My -10 is now grounded until I hear back from MT on the replacement procedure.
I am so glad, this thread popped up and prompted me to look.
Shannon
__________________
Shannon
RV-10
Flying September 2015
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08-08-2016, 07:09 PM
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Join Date: Jan 2013
Location: Southampton, Ont
Posts: 87
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MT governor failure
Guys, the other fact I wondering about. is, since the MT SB came out in 2013, was Vans ever told about it and/or did they keep sending MT governors with the kits?
I combed their web site and correct me if I'm wrong, but I see no mention of any MT service bulletin. This doesn't help,the situation either.
Rick
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08-08-2016, 07:22 PM
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Join Date: Dec 2012
Location: Brooksville, MS
Posts: 745
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Quote:
Originally Posted by Larkrv10
Guys, the other fact I wondering about. is, since the MT SB came out in 2013, was Vans ever told about it and/or did they keep sending MT governors with the kits?
I combed their web site and correct me if I'm wrong, but I see no mention of any MT service bulletin. This doesn't help,the situation either.
Rick
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You titled your post " MT Governor failure "? Then go on to question the SB issued by MT. Neither mine nor the original poster have governors that are affected by the SB. They are 2 separate issues.
__________________
Weasel
RV-4 715hr Sold 
RV-10 "School Bus" -   +1600hr counting
Fisher Classic Cassler Power VW sold
RV-10 N7631T 820hr Sold
RV-8 700+hrs
Carbon Cub 200 hr Sold
One-Off Super Cub 100 hr
SERFI AWARDS
http://weaselrv10.blogspot.com/
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08-08-2016, 07:43 PM
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Join Date: Feb 2005
Location: Indiana
Posts: 173
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Question
I had my MT Governor overhauled in June 12, 2102. Serial # 09G054G
Can someone see if my governor is on the list. My computer will not allow me to access the SB from MT.
Tiffin Aire did the work.
Thanks,
Darren Kerns
RV7 N599DT
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08-08-2016, 07:53 PM
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Join Date: Jan 2013
Location: Southampton, Ont
Posts: 87
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MT governor (failure)
So Weasel, at this point, do you know for sure that your issue was NOT caused by an internal issue with the bushing being involved? The same could be asked about Todd's? While you are correct that the 2 afore mentioned governors may not be part of the SB, my point is that all 3 appear to have caused an engine over speed which may have caused significant engine damage, and, I'm wondering if Vans was ever told of the SB by MT? Seems like a reasonable question to me.
Rick
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08-08-2016, 07:58 PM
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Join Date: Feb 2005
Location: Indiana
Posts: 173
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Guys
I got in to see the SB. It looks as if my governor does not apply.
I hope I am reading it correctly.
Thanks,
Darren
RV7 N599DT
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08-08-2016, 08:33 PM
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Join Date: Dec 2012
Location: Brooksville, MS
Posts: 745
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Quote:
Originally Posted by Larkrv10
Seems like a reasonable question to me.
Rick
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Sure, it's a reasonable question but you can see in the picture that a portion of the fly weight pin bracket broke off letting the weight depart off the pin. I don't think a bushing had anything to do with it. Also MT-USA disassembled it for inspection and said they have never seen this before.
__________________
Weasel
RV-4 715hr Sold 
RV-10 "School Bus" -   +1600hr counting
Fisher Classic Cassler Power VW sold
RV-10 N7631T 820hr Sold
RV-8 700+hrs
Carbon Cub 200 hr Sold
One-Off Super Cub 100 hr
SERFI AWARDS
http://weaselrv10.blogspot.com/
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08-08-2016, 09:51 PM
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Join Date: Aug 2009
Location: Southern California
Posts: 882
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Harmonics?
Both of the failures discussed in this thread were on -540's. Is anyone aware of similar MT governor failures on four cylinder Lyc's? I'm wondering if this could be a harmonics issue on the -540...
Skylor
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08-09-2016, 05:02 AM
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Join Date: Jan 2005
Location: Ottawa, Canada
Posts: 2,357
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Quote:
Originally Posted by Auburntsts
Well I had an overspeed - from the moment on the missed approach when I advanced power to until I figured out something was seriously wrong and transitioned to VFR whikle reducing power. That delay is going to prove very costly.
I've read through SB 369L and the teardown and inspection is extensive. Is this something I trust to my local guy or bite the bullet and ship it back to BPE from whence it came?
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Also consider the prop. Hartzell and MT both publish inspection requirements as a function of the max rpm. They also publish rpm values at which the prop should be scrapped, and that rpm could have easily been exceeded in this event.
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08-09-2016, 07:27 AM
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Join Date: Mar 2013
Location: Flathead Lake Montana - 8S1
Posts: 334
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Quote:
Originally Posted by skylor
Both of the failures discussed in this thread were on -540's. Is anyone aware of similar MT governor failures on four cylinder Lyc's? I'm wondering if this could be a harmonics issue on the -540...Skylor
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Mine was installed on an AEIO 360 in a Pitts
__________________
'83 LongEZ - N888EZ 3,671 hours
'89 LimoEZ - N26EZ 686 hours (sold)
A couple of Glasairs and a Lancair 320...
Next: a RV14 need something to build
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