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MT P860-3 Prop Gov fail.
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civengpe

Joined: 14 Feb 2011
Posts: 105

Posted: Thu Aug 18, 2016 5:00 pm Post subject: MT P860-3 Prop Gov fail.

I agree with Phil 100%. Every time I speak with MT, I get a new "Definitive" answer. I am really disappointed in how MT has handled this situation so far.  This does not give me great confidence in their company. 

I wish they would come out publicly and at least tell us they are looking into it. All of the info we have is second hand and most contradictory. 

Shannon

On Thursday, August 18, 2016, Phillip Perry <philperry9(at)gmail.com (philperry9(at)gmail.com)> wrote:

 	  Quote: 	
		  --> RV10-List message posted by: Phillip Perry <[url=javascript:;]philperry9(at)gmail.com[/url]>

 Perhaps it's just me, but having MT develop a solution to the gov so quickly makes me uneasy.

 To my knowledge, none if the failed gov's have been forensically examined by MT in a lab.

 Yet, they're getting ready to publish a solution?

 Isn't step #1 to the solution a root cause analysis?

 Even with a SB coming out, I'm still uneasy and ultimately skeptical that the solution addresses a problem that isn't fully understood by them.

 Or, perhaps they HAVE known the details and fully understood the potential for failure, but failed to address it until the units began failing in the field?  I know that's conspiracy theory stuff, but it would be the only way they could develop a solution for failures they haven't researched.

 Either way, I'm uneasy with a solution that comes out of MT without having real analysis performed on the failed parts.

 Just had to get that off my chest because I feel like others are thinking (or feeling) the same thing.  Thanks for letting me rant for just a moment.....

 Phil

 Sent from my iPhone

 > On Aug 18, 2016, at 4:54 PM, tsts4 <[url=javascript:;]tsts4(at)verizon.net[/url]> wrote:

 >

 > --> RV10-List message posted by: "tsts4" <[url=javascript:;]tsts4(at)verizon.net[/url]>

 >

 >

 > philperry9 wrote:

 >> Basically I was just saying that I wouldn't knowingly be running it on the lower end..   If carry as much as possible without giving it so much that it would blow out.

 >>

 >>

 >> I should have mentioned that 90 kts was the limp-along speed reported without over speeding (again).

 >>

 >>

 >> The over speeding has occurred in 2 of the 3.   Both of those props became decorations and the engine cases split for inspection. � (I believe 1 owner found it was cheaper/better to buy a new IO-540 than to repair the existing one.   That's 2nd hand knowledge from a reasonably good source though, so don't hold me to it if it's wrong.)

 >>

 >>

 >> Phil

 >

 >

 > Sorry about the tardiness of this post as I just became aware of these threads here on Matronics as I don't visit here anymore.

 >

 > Anyway, Phil is correct that I limped home at 90 knots for about 20 min.  I lost about 1/2 to 3/4 of a qt of oil in the process (started the day with .  Of course at the time  I had no idea that I was losing oil at all--all I knew was I had no prop control and anything above 14"  would run the RPM to redline.

 >

 > --------

 > Todd Stovall

 > aka Auburntsts on EAA, AOPA, Purple Pilots, VAF, and RVairspace

 > RV-10 N728TT

 > Empacone, Wings, Fuse, Finishing

 > www.mykitlog.com/auburntsts

 >

 >

 >

 >

 > Read this topic online here:

 >

 > http://forums.matronics.com/viewtopic.php?p=459621#459621

 >

 >

 >

 >

 >

 >

 >

 >

 >

 >

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Kellym

Joined: 10 Jan 2006
Posts: 1700
Location: Sun Lakes AZ

Posted: Thu Aug 18, 2016 5:05 pm Post subject: MT P860-3 Prop Gov fail.

They may have had some information from the racing/aerobatic community. 

The Red Bull racers from my understanding used MT governors as well as 

props on their IO-540s. I can check, as one or two of them are based at 

my home 'drome.



On 8/18/2016 5:59 PM, Shannon Hicks wrote:

 	  Quote: 	
		   I agree with Phil 100%. Every time I speak with MT, I get a new

 "Definitive" answer. I am really disappointed in how MT has handled this

 situation so far.  This does not give me great confidence in their company.



 I wish they would come out publicly and at least tell us they are

 looking into it. All of the info we have is second hand and most

 contradictory.



 Shannon



 On Thursday, August 18, 2016, Phillip Perry <philperry9(at)gmail.com

 <mailto:philperry9(at)gmail.com>> wrote:



     

     <javascript:;>>



     Perhaps it's just me, but having MT develop a solution to the gov so

     quickly makes me uneasy.



     To my knowledge, none if the failed gov's have been forensically

     examined by MT in a lab.



     Yet, they're getting ready to publish a solution?



     Isn't step #1 to the solution a root cause analysis?



     Even with a SB coming out, I'm still uneasy and ultimately skeptical

     that the solution addresses a problem that isn't fully understood by

     them.



     Or, perhaps they HAVE known the details and fully understood the

     potential for failure, but failed to address it until the units

     began failing in the field?  I know that's conspiracy theory stuff,

     but it would be the only way they could develop a solution for

     failures they haven't researched.



     Either way, I'm uneasy with a solution that comes out of MT without

     having real analysis performed on the failed parts.



     Just had to get that off my chest because I feel like others are

     thinking (or feeling) the same thing.  Thanks for letting me rant

     for just a moment.....



     Phil





     Sent from my iPhone



     > On Aug 18, 2016, at 4:54 PM, tsts4 <tsts4(at)verizon.net

     <javascript:;>> wrote:

     >

     > 

     <javascript:;>>

     >

     >

     > philperry9 wrote:

     >> Basically I was just saying that I wouldn't knowingly be running

     it on the lower end..   If carry as much as possible without giving

     it so much that it would blow out.

     >>

     >>

     >> I should have mentioned that 90 kts was the limp-along speed

     reported without over speeding (again).

     >>

     >>

     >> The over speeding has occurred in 2 of the 3.   Both of those

     props became decorations and the engine cases split for inspection.

     � (I believe 1 owner found it was cheaper/better to buy a new IO-540

     than to repair the existing one.   That's 2nd hand knowledge from a

     reasonably good source though, so don't hold me to it if it's wrong.)

     >>

     >>

     >> Phil

     >

     >

     > Sorry about the tardiness of this post as I just became aware of

     these threads here on Matronics as I don't visit here anymore.

     >

     > Anyway, Phil is correct that I limped home at 90 knots for about

     20 min.  I lost about 1/2 to 3/4 of a qt of oil in the process

     (started the day with .  Of course at the time  I had no idea that

     I was losing oil at all--all I knew was I had no prop control and

     anything above 14"  would run the RPM to redline.

     >

     > --------

     > Todd Stovall

     > aka Auburntsts on EAA, AOPA, Purple Pilots, VAF, and RVairspace

     > RV-10 N728TT

     > Empacone, Wings, Fuse, Finishing

     > www.mykitlog.com/auburntsts <http://www.mykitlog.com/auburntsts>

     >

     >

     >

     >

     > Read this topic online here:

     >

     > http://forums.matronics.com/viewtopic.php?p=459621#459621

     <http://forums.matronics.com/viewtopic.php?p=459621#459621>

     >

     >

     >

     >

     >

     >

     >

     >

     >

     >

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     _blank">http://forums.matronics.com

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               -Matt Dralle, List Admin.

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     ====================================

_________________
Kelly McMullen
A&P/IA, EAA Tech Counselor # 5286
KCHD

larkrv10(at)gmail.com
Guest

Posted: Thu Aug 18, 2016 6:19 pm Post subject: MT P860-3 Prop Gov fail.

Guys, I can add that the tone of the emails I have received from MT echo what Phil and Shannon have said.  It appears to me they are deflecting any blame, in my opinion, for a poor design and or engineering, which has resulted in significant engine damage.  I'm certainly disappointed in them.  I hoped they would "step up to the plate".  Remains to be seen if they will.....

Rick

On Thu, Aug 18, 2016 at 8:50 PM, Phillip Perry <philperry9(at)gmail.com (philperry9(at)gmail.com)> wrote:

 	  Quote: 	
		  --> RV10-List message posted by: Phillip Perry <philperry9(at)gmail.com (philperry9(at)gmail.com)>

 Perhaps it's just me, but having MT develop a solution to the gov so quickly makes me uneasy.

 To my knowledge, none if the failed gov's have been forensically examined by MT in a lab.

 Yet, they're getting ready to publish a solution?

 Isn't step #1 to the solution a root cause analysis?

 Even with a SB coming out, I'm still uneasy and ultimately skeptical that the solution addresses a problem that isn't fully understood by them.

 Or, perhaps they HAVE known the details and fully understood the potential for failure, but failed to address it until the units began failing in the field?  I know that's conspiracy theory stuff, but it would be the only way they could develop a solution for failures they haven't researched.

 Either way, I'm uneasy with a solution that comes out of MT without having real analysis performed on the failed parts.

 Just had to get that off my chest because I feel like others are thinking (or feeling) the same thing.  Thanks for letting me rant for just a moment.....

 Phil

 Sent from my iPhone

 > On Aug 18, 2016, at 4:54 PM, tsts4 <tsts4(at)verizon.net (tsts4(at)verizon.net)> wrote:

 >

 > --> RV10-List message posted by: "tsts4" <tsts4(at)verizon.net (tsts4(at)verizon.net)>

 >

 >

 > philperry9 wrote:

 >> Basically I was just saying that I wouldn't knowingly be running it on the lower end..   If carry as much as possible without giving it so much that it would blow out.

 >>

 >>

 >> I should have mentioned that 90 kts was the limp-along speed reported without over speeding (again).

 >>

 >>

 >> The over speeding has occurred in 2 of the 3.   Both of those props became decorations and the engine cases split for inspection. � (I believe 1 owner found it was cheaper/better to buy a new IO-540 than to repair the existing one.   That's 2nd hand knowledge from a reasonably good source though, so don't hold me to it if it's wrong.)

 >>

 >>

 >> Phil

 >

 >

 > Sorry about the tardiness of this post as I just became aware of these threads here on Matronics as I don't visit here anymore.

 >

 > Anyway, Phil is correct that I limped home at 90 knots for about 20 min.  I lost about 1/2 to 3/4 of a qt of oil in the process (started the day with .  Of course at the time  I had no idea that I was losing oil at all--all I knew was I had no prop control and anything above 14"  would run the RPM to redline.

 >

 > --------

 > Todd Stovall

 > aka Auburntsts on EAA, AOPA, Purple Pilots, VAF, and RVairspace

 > RV-10 N728TT

 > Empacone, Wings, Fuse, Finishing

 > www.mykitlog.com/auburntsts

 >

 >

 >

 >

 > Read this topic online here:

 >

 > http://forums.matronics.com/viewtopic.php?p=459621#459621

 >

 >

 >

 >

 >

 >

 >

 >

 >

 >

 ====================================

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 ====================================

  FORUMS -

 _blank" rel="noreferrer">http://forums.matronics.com

 ====================================

 WIKI -

 lank" rel="noreferrer">http://wiki.matronics.com

 ====================================

 b Site -

           -Matt Dralle, List Admin.

 target="_blank" rel="noreferrer">http://www.matronics.com/contribution

 ====================================

woxofswa

Joined: 12 Aug 2008
Posts: 349
Location: AZ

Posted: Thu Aug 18, 2016 8:13 pm Post subject: Re: MT P860-3 Prop Gov fail.

My RPM tracking at moment of PG failure.

_________________
Myron Nelson
Mesa, AZ
Flew May 10 2014

woxofswa

Joined: 12 Aug 2008
Posts: 349
Location: AZ

Posted: Thu Aug 18, 2016 8:16 pm Post subject: Re: MT P860-3 Prop Gov fail.

FYI to Hartzell buyers. 



Van's lists their two Hartzell govs wrong in their catalog. They list them as for "IO" or "O". According to Hartzell, fuel delivery makes no difference. They should be listed as for narrow deck or wide deck.

_________________
Myron Nelson
Mesa, AZ
Flew May 10 2014

glastar(at)gmx.net
Guest

Posted: Fri Aug 19, 2016 12:14 am Post subject: MT P860-3 Prop Gov fail.

I know 2nd hand info is always a bit of an unease and it would be great 

they would announce this things public as well, as having a subscription 

possibility to their SB's would help. Now the company is tech savvy not 

Internet savvy so that might explain a bit the shortcoming on that side 

but is no excuse.



I had a call today with MT Germany support and he confirmed he has the 

list of 860-3 which needs to be fixed, the problem is he needs the 

manager to sign the SB for release and they have summer holiday...



But for everyone in that published time range you can get the support 

email off their web page and he will openly answer you if your serial is 

impacted or not.



They did, after the first failure and the following once an in deep 

analysis and could track the issue down so that is why they have that list.



Werner



On 19.08.2016 02:59, Shannon Hicks wrote:

 	  Quote: 	
		   I agree with Phil 100%. Every time I speak with MT, I get a new

 "Definitive" answer. I am really disappointed in how MT has handled this

 situation so far.  This does not give me great confidence in their company.



 I wish they would come out publicly and at least tell us they are

 looking into it. All of the info we have is second hand and most

 contradictory.



 Shannon



 On Thursday, August 18, 2016, Phillip Perry <philperry9(at)gmail.com

 <mailto:philperry9(at)gmail.com>> wrote:



     

     <javascript:;>>



     Perhaps it's just me, but having MT develop a solution to the gov so

     quickly makes me uneasy.



     To my knowledge, none if the failed gov's have been forensically

     examined by MT in a lab.



     Yet, they're getting ready to publish a solution?



     Isn't step #1 to the solution a root cause analysis?



     Even with a SB coming out, I'm still uneasy and ultimately skeptical

     that the solution addresses a problem that isn't fully understood by

     them.



     Or, perhaps they HAVE known the details and fully understood the

     potential for failure, but failed to address it until the units

     began failing in the field?  I know that's conspiracy theory stuff,

     but it would be the only way they could develop a solution for

     failures they haven't researched.



     Either way, I'm uneasy with a solution that comes out of MT without

     having real analysis performed on the failed parts.



     Just had to get that off my chest because I feel like others are

     thinking (or feeling) the same thing.  Thanks for letting me rant

     for just a moment.....



     Phil

philperry9

Joined: 23 Nov 2011
Posts: 380

Posted: Fri Aug 19, 2016 6:59 am Post subject: MT P860-3 Prop Gov fail.

Which PG did they get their hands on for detailed analysis?   So far there have been 4 problems with the PG.



Rick Lark - Which was an unrelated failure and traced back to SB #27 (Seized Bushing).

Todd Stovall and Myron Nelson- Just occurred and were the shove to getting this issue recognized as a trend.

That leaves Joel Graber who experienced the very first failure - one that didn't puncture the casing leading to oil loss.  Joel sent his back to the US office of MT and they returned it to him with a comment that they'd never seen this before and "governor is scrapped due to overspeed".   According to Joel, he "paid them to take it apart and send it back."

Unless there's a 5th out there that we aren't aware of, I don't see where any of the three related failures were ever properly examined.

Phil

On Fri, Aug 19, 2016 at 3:14 AM, Werner Schneider <glastar(at)gmx.net (glastar(at)gmx.net)> wrote:

 	  Quote: 	
		  --> RV10-List message posted by: Werner Schneider <glastar(at)gmx.net (glastar(at)gmx.net)>

 

 I know 2nd hand info is always a bit of an unease and it would be great they would announce this things public as well, as having a subscription possibility to their SB's would help. Now the company is tech savvy not Internet savvy so that might explain a bit the shortcoming on that side but is no excuse.

 

 I had a call today with MT Germany support and he confirmed he has the list of 860-3 which needs to be fixed, the problem is he needs the manager to sign the SB for release and they have summer holiday...

 

 But for everyone in that published time range you can get the support email off their web page and he will openly answer you if your serial is impacted or not.

 

 They did, after the first failure and the following once an in deep analysis and could track the issue down so that is why they have that list.

 

 Werner

woxofswa

Joined: 12 Aug 2008
Posts: 349
Location: AZ

Posted: Fri Aug 19, 2016 7:27 am Post subject: Re: MT P860-3 Prop Gov fail.

Been advised second hand that there have been five. Trying to track down the details.

_________________
Myron Nelson
Mesa, AZ
Flew May 10 2014

larkrv10(at)gmail.com
Guest

Posted: Fri Aug 19, 2016 1:13 pm Post subject: MT P860-3 Prop Gov fail.

Phil my governor was sent back by Tiffin Aire about July 13th.

Rick

On Fri, Aug 19, 2016 at 10:57 AM, Phillip Perry <philperry9(at)gmail.com (philperry9(at)gmail.com)> wrote:

 	  Quote: 	
		  Which PG did they get their hands on for detailed analysis?   So far there have been 4 problems with the PG.



Rick Lark - Which was an unrelated failure and traced back to SB #27 (Seized Bushing).

Todd Stovall and Myron Nelson- Just occurred and were the shove to getting this issue recognized as a trend.

That leaves Joel Graber who experienced the very first failure - one that didn't puncture the casing leading to oil loss.  Joel sent his back to the US office of MT and they returned it to him with a comment that they'd never seen this before and "governor is scrapped due to overspeed".   According to Joel, he "paid them to take it apart and send it back."

Unless there's a 5th out there that we aren't aware of, I don't see where any of the three related failures were ever properly examined.

Phil

On Fri, Aug 19, 2016 at 3:14 AM, Werner Schneider <glastar(at)gmx.net (glastar(at)gmx.net)> wrote:

 	  Quote: 	
		  --> RV10-List message posted by: Werner Schneider <glastar(at)gmx.net (glastar(at)gmx.net)>

 

 I know 2nd hand info is always a bit of an unease and it would be great they would announce this things public as well, as having a subscription possibility to their SB's would help. Now the company is tech savvy not Internet savvy so that might explain a bit the shortcoming on that side but is no excuse.

 

 I had a call today with MT Germany support and he confirmed he has the list of 860-3 which needs to be fixed, the problem is he needs the manager to sign the SB for release and they have summer holiday...

 

 But for everyone in that published time range you can get the support email off their web page and he will openly answer you if your serial is impacted or not.

 

 They did, after the first failure and the following once an in deep analysis and could track the issue down so that is why they have that list.

 

 Werner

philperry9

Joined: 23 Nov 2011
Posts: 380

Posted: Fri Aug 19, 2016 3:33 pm Post subject: MT P860-3 Prop Gov fail.

Yeah...  I don't relate your SB #27 failure to the upcoming SB #31 failures.   I'm concerned that they are developing a SB for the weight issue without having laid their hands on a failed PG for a detailed analysis...



On Fri, Aug 19, 2016 at 4:12 PM, Rick Lark <larkrv10(at)gmail.com (larkrv10(at)gmail.com)> wrote:

 	  Quote: 	
		  Phil my governor was sent back by Tiffin Aire about July 13th.

Rick

On Fri, Aug 19, 2016 at 10:57 AM, Phillip Perry <philperry9(at)gmail.com (philperry9(at)gmail.com)> wrote:

 	  Quote: 	
		  Which PG did they get their hands on for detailed analysis?   So far there have been 4 problems with the PG.



Rick Lark - Which was an unrelated failure and traced back to SB #27 (Seized Bushing).

Todd Stovall and Myron Nelson- Just occurred and were the shove to getting this issue recognized as a trend.

That leaves Joel Graber who experienced the very first failure - one that didn't puncture the casing leading to oil loss.  Joel sent his back to the US office of MT and they returned it to him with a comment that they'd never seen this before and "governor is scrapped due to overspeed".   According to Joel, he "paid them to take it apart and send it back."

Unless there's a 5th out there that we aren't aware of, I don't see where any of the three related failures were ever properly examined.

Phil

On Fri, Aug 19, 2016 at 3:14 AM, Werner Schneider <glastar(at)gmx.net (glastar(at)gmx.net)> wrote:

 	  Quote: 	
		  --> RV10-List message posted by: Werner Schneider <glastar(at)gmx.net (glastar(at)gmx.net)>

 

 I know 2nd hand info is always a bit of an unease and it would be great they would announce this things public as well, as having a subscription possibility to their SB's would help. Now the company is tech savvy not Internet savvy so that might explain a bit the shortcoming on that side but is no excuse.

 

 I had a call today with MT Germany support and he confirmed he has the list of 860-3 which needs to be fixed, the problem is he needs the manager to sign the SB for release and they have summer holiday...

 

 But for everyone in that published time range you can get the support email off their web page and he will openly answer you if your serial is impacted or not.

 

 They did, after the first failure and the following once an in deep analysis and could track the issue down so that is why they have that list.

 

 Werner

woxofswa

Joined: 12 Aug 2008
Posts: 349
Location: AZ

Posted: Sat Aug 20, 2016 8:10 am Post subject: Re: MT P860-3 Prop Gov fail.

In looking more closely at my recorder data on www.savvyanalysis.com, 

there is something that stands out to me.



Prior to my PG failure, there were four momentary upward spikes in my RPM of approx 150RPM each.  There were none on the previous segment of the flight, nor on the previous flight.



The first one happened 17 minutes prior to the failure.  They are just blips with no duration at the peak.  I honestly didn't notice them in the flight.

I am not expert on any of this stuff, and just started with the software, but, If I were to be in a situation where I was going to fly with one of these PG's, I would set my max RPM alert to 100 rpm higher than what I planned to use at cruise.  (I normally cruise at 2300 below 10K and 2400 above).



One could do it prior to flight and just deal with the alert on takeoff, or reset the alert level once established in cruise.  At any rate, it could give an alert that something is potentially wrong and give more time to GYAOTG

_________________
Myron Nelson
Mesa, AZ
Flew May 10 2014

Kellym

Joined: 10 Jan 2006
Posts: 1700
Location: Sun Lakes AZ

Posted: Sat Aug 20, 2016 5:06 pm Post subject: MT P860-3 Prop Gov fail.

One could set your governor to a max rpm of 2575, which is the redline 

for the 250 hp rating used in the Aztec and Comanche 250. Or as you 

suggest, put an alarm in at somewhere around 2500 so you know when you 

exceed that.



On 8/20/2016 9:10 AM, woxofswa wrote:

 	  Quote: 	
		   



 In looking more closely at my recorder data on www.savvyanalysis.com,

 there is something that stands out to me.



 Prior to my PG failure, there were four momentary upward spikes in my RPM of approx 150RPM each.  There were none on the previous segment of the flight, nor on the previous flight.



 The first one happened 17 minutes prior to the failure.  They are just blips with no duration at the peak.  I honestly didn't notice them in the flight.

 I am not expert on any of this stuff, and just started with the software, but, If I were to be in a situation where I was going to fly with one of these PG's, I would set my max RPM alert to 100 rpm higher than what I planned to use at cruise.  (I normally cruise at 2300 below 10K and 2400 above).



 One could do it prior to flight and just deal with the alert on takeoff, or reset the alert level once established in cruise.  At any rate, it could give an alert that something is potentially wrong and give more time to GYAOTG



 --------

 Myron Nelson

 Mesa, AZ

 Flew May 10 2014





 Read this topic online here:



 http://forums.matronics.com/viewtopic.php?p=459686#459686

_________________
Kelly McMullen
A&P/IA, EAA Tech Counselor # 5286
KCHD

Lenny Iszak

Joined: 23 Mar 2008
Posts: 270

Posted: Tue Aug 30, 2016 6:07 am Post subject: Re: MT P860-3 Prop Gov fail.

Finally got a hold of the SB 31 document from MT.



http://www.311lz.com/docs/SB_31.pdf

_________________
Lenny Iszak
Palm City, FL
2014 RV-10, N311LZ - 500 hrs

Kelly McMullen

Joined: 16 Apr 2008
Posts: 1188
Location: Sun Lakes AZ

Posted: Tue Aug 30, 2016 6:32 am Post subject: MT P860-3 Prop Gov fail.

I don't know how definitive that list is. There are supposedly other dash numbers included. I see my serial number there under a different model number than it is. I don't see the SB on MT's web site right now.



-sent from the I-chip implanted in my forearm





 

On Tue, Aug 30, 2016 at 7:07 AM, Lenny Iszak <lenard(at)rapiddecision.com (lenard(at)rapiddecision.com)> wrote:

 	  Quote: 	
		  --> RV10-List message posted by: "Lenny Iszak" <lenard(at)rapiddecision.com (lenard(at)rapiddecision.com)>

 

 Finally got a hold of the SB 31 document from MT.

 

 http://www.311lz.com/docs/SB_31.pdf

 

 --------

 Lenny

 N311LZ

 

 

 

 

 Read this topic online here:

 

 http://forums.matronics.com/viewtopic.php?p=460030#460030

 

 

 

 

 

 

 

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 rel="noreferrer" target="_blank">http://www.matronics.com/contribution

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_________________
Kelly McMullen
A&P/IA, EAA Tech Counselor
KCHD

Kelly McMullen

Joined: 16 Apr 2008
Posts: 1188
Location: Sun Lakes AZ

Posted: Tue Aug 30, 2016 12:41 pm Post subject: MT P860-3 Prop Gov fail.

Just heard from Juergen at MT-USA, the service bulletin was issued yesterday, he was doing my governor when he called.So, I might be able to get back in the air next week.



-sent from the I-chip implanted in my forearm





 

On Tue, Aug 30, 2016 at 7:31 AM, Kelly McMullen <apilot2(at)gmail.com (apilot2(at)gmail.com)> wrote:

 	  Quote: 	
		  I don't know how definitive that list is. There are supposedly other dash numbers included. I see my serial number there under a different model number than it is. I don't see the SB on MT's web site right now.



-sent from the I-chip implanted in my forearm





 

On Tue, Aug 30, 2016 at 7:07 AM, Lenny Iszak <lenard(at)rapiddecision.com (lenard(at)rapiddecision.com)> wrote:

 	  Quote: 	
		  --> RV10-List message posted by: "Lenny Iszak" <lenard(at)rapiddecision.com (lenard(at)rapiddecision.com)>

 

 Finally got a hold of the SB 31 document from MT.

 

 http://www.311lz.com/docs/SB_31.pdf

 

 --------

 Lenny

 N311LZ

 

 

 

 

 Read this topic online here:

 

 http://forums.matronics.com/viewtopic.php?p=460030#460030

 

 

 

 

 

 

 

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_________________
Kelly McMullen
A&P/IA, EAA Tech Counselor
KCHD

jdriggs49(at)MSN.COM
Guest

Posted: Tue Aug 30, 2016 3:44 pm Post subject: MT P860-3 Prop Gov fail.

I certainly had great news today! I read Hartzell on my PG when I pulled off the cowl.  I got the engine from Barrett and was sure it was MT. Whew!!

 

 Sent from my iPhone

 

 On Aug 30, 2016, at 5:03 PM, Kelly McMullen <apilot2(at)gmail.com (apilot2(at)gmail.com)> wrote:

 

 

  	  Quote: 	
		    Just heard from Juergen at MT-USA, the service bulletin was issued yesterday, he was doing my governor when he called.So, I might be able to get back in the air next week.

 

      -sent from the I-chip implanted in my forearm

 

 

 

 

 

 On Tue, Aug 30, 2016 at 7:31 AM, Kelly McMullen  <apilot2(at)gmail.com (apilot2(at)gmail.com)> wrote:

  	  Quote: 	
		   I don't know how definitive that list is. There are supposedly other dash numbers included. I see my serial number there under a different model number than it is. I don't see the SB on MT's web site right now.

 

      -sent from the I-chip implanted in my forearm

 

 

 

 

  

 On Tue, Aug 30, 2016 at 7:07 AM, Lenny Iszak  <lenard(at)rapiddecision.com (lenard(at)rapiddecision.com)> wrote:

  	  Quote: 	
		   --> RV10-List message posted by: "Lenny Iszak" <lenard(at)rapiddecision.com (lenard(at)rapiddecision.com)>

 

 Finally got a hold of the SB 31 document from MT.

 

 http://www.311lz.com/docs/SB_31.pdf

 

 --------

 Lenny

 N311LZ

 

 

 

 

 Read this topic online here:

 

 http://forums.matronics.com/viewtopic.php?p=460030#460030

 

 

 

 

 

 

 

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 -List" rel="noreferrer" target="_blank">http://www.matronics.com/Navigator?RV10-List

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 FORUMS -

 eferrer" target="_blank">http://forums.matronics.com

 ====================================

 WIKI -

 errer" target="_blank">http://wiki.matronics.com

 ====================================

 b Site -

           -Matt Dralle, List Admin.

 rel="noreferrer" target="_blank">http://www.matronics.com/contribution

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woxofswa

Joined: 12 Aug 2008
Posts: 349
Location: AZ

Posted: Tue Aug 30, 2016 5:25 pm Post subject: Re: MT P860-3 Prop Gov fail.

One update that some might find interesting.  I took my prop to Ottosen's propeller which is a large Hartzell authorized repair station and distributer that's been around for decades. 

They told me that on teardown, they discovered that my "pre-load plate" had shifted position by 1/8th inch due to the failure.  (Mine was the one that failed to full coarse pitch).  I had no idea what that meant, but they said that it was a huge deal and something that they had never actually seen before.

_________________
Myron Nelson
Mesa, AZ
Flew May 10 2014

woxofswa

Joined: 12 Aug 2008
Posts: 349
Location: AZ

Posted: Fri Sep 02, 2016 11:56 am Post subject: Re: MT P860-3 Prop Gov fail.

MT is now finally gathering our actual data.  Their past assumptions have been quite wrong, as evidenced by the wording of the SB. 



If you've had a failure or know someone who has, please send the information, serial number, installation, engine type, failure type, etc, to the following. 



Martin.albrecht(at)mt-propeller.com



This could save lives.

_________________
Myron Nelson
Mesa, AZ
Flew May 10 2014

woxofswa

Joined: 12 Aug 2008
Posts: 349
Location: AZ

Posted: Mon Nov 14, 2016 4:48 pm Post subject: Re: MT P860-3 Prop Gov fail.

According to my insurance adjuster they just received a brand new claim for another PG failure.

_________________
Myron Nelson
Mesa, AZ
Flew May 10 2014

bob88

Joined: 24 Feb 2013
Posts: 99

Posted: Wed Nov 16, 2016 6:40 am Post subject: Re: MT P860-3 Prop Gov fail.

Where can I access the SB on this? The Van's website directs to MT website but the list of MT SBs doesn't seem to include this one.

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