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  #21  
Old 08-08-2016, 06:37 PM
civengpe civengpe is offline
 
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
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  #22  
Old 08-08-2016, 08:09 PM
Larkrv10 Larkrv10 is offline
 
Join Date: Jan 2013
Location: Southampton, Ont
Posts: 87
Default 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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  #23  
Old 08-08-2016, 08:22 PM
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Weasel Weasel is offline
 
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Location: Brooksville, MS
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Quote:
Originally Posted by Larkrv10 View Post
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
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.
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  #24  
Old 08-08-2016, 08:43 PM
Darren Kerns Darren Kerns is offline
 
Join Date: Feb 2005
Location: Indiana
Posts: 163
Default 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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  #25  
Old 08-08-2016, 08:53 PM
Larkrv10 Larkrv10 is offline
 
Join Date: Jan 2013
Location: Southampton, Ont
Posts: 87
Default 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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  #26  
Old 08-08-2016, 08:58 PM
Darren Kerns Darren Kerns is offline
 
Join Date: Feb 2005
Location: Indiana
Posts: 163
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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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  #27  
Old 08-08-2016, 09:33 PM
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Weasel Weasel is offline
 
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Quote:
Originally Posted by Larkrv10 View Post
Seems like a reasonable question to me.
Rick
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.
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Fisher Classic Cassler Power VW sold
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  #28  
Old 08-08-2016, 10:51 PM
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skylor skylor is offline
 
Join Date: Aug 2009
Location: Southern California
Posts: 724
Default 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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  #29  
Old 08-09-2016, 06:02 AM
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Kevin Horton Kevin Horton is offline
 
Join Date: Jan 2005
Location: Ottawa, Canada
Posts: 2,355
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Quote:
Originally Posted by Auburntsts View Post
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?
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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  #30  
Old 08-09-2016, 08:27 AM
deek deek is offline
 
Join Date: Mar 2013
Location: Flathead Lake Montana - 8S1
Posts: 324
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Quote:
Originally Posted by skylor View Post
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
Mine was installed on an AEIO 360 in a Pitts
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