Rocket Transition Tube Cracked

[SpamPilot]

During annual, my A&P found a crack in the exhaust transition tube in my Rocket 305 by pressurizing the system and applying soapy water.  The bubbling was undeniable.  I asked for a dye penetrant inspection so we could get a good picture of it:

It's right there next to and parallel to the weld.  This is the weld on the pipe headed off to the wastegate.

No CO has been observed in the cabin on the digital CO meter.

This is the Rev D transition tube.  It was installed in 1995 to comply with AD 95-17-06.  It's the beefier tube that permits lengthing the inspection interval to 100 hours.

Has anyone had to deal with this?  Is the transition tube repairable or rebuildable?

 

 

 

[Fly Boomer]

1 minute ago, SpamPilot said:

During annual, my A&P found a crack in the exhaust transition tube in my Rocket 305 by pressurizing the system and applying soapy water.  The bubbling was undeniable.  I asked for a dye penetrant inspection so we could get a good picture of it:

It's right there next to and parallel to the weld.  This is the weld on the pipe headed off to the wastegate.

No CO has been observed in the cabin on the digital CO meter.

This is the Rev D transition tube.  It was installed in 1995 to comply with AD 95-17-06.  It's the beefier tube that permits lengthing the inspection interval to 100 hours.

Has anyone had to deal with this?  Is the transition tube repairable or rebuildable?

 

 

 

I'm sure many will suggest contacting Rocket Engineering, but what I read here suggests that getting some action is becoming progressively more difficult.  Whatever happens, please post back.

[SpamPilot]

Yeah, it has become increasingly difficult to get a response from Rocket.  Their answering machine said "send us a detailed email to rocket@icehouse.net", so I have done that and am awaiting a response.  Was hoping someone here might have gone through this already and know the drill for repair vs. rebuild vs. replace.

[Fly Boomer]

3 minutes ago, SpamPilot said:

Yeah, it has become increasingly difficult to get a response from Rocket.  Their answering machine said "send us a detailed email to rocket@icehouse.net", so I have done that and am awaiting a response.  Was hoping someone here might have gone through this already and know the drill for repair vs. rebuild vs. replace.

When I was looking for a quick-drain adapter, I sent an email to that address (months ago).  So far, no response.

[kortopates]

I would seek the opinion of a good aircraft welder. They can usually repair any exhaust - even if they’re rebuilding it.


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[SpamPilot]

BTW, thanks to goodyFAB for posting a few months back about the turbine inlet gasket, with pictures:

https://mooneyspace.com/topic/43361-rocket-parts

I see I am going to need a TCM 640877, in stock at Spruce.  I'm also going to need a Cessna wastegate gasket 9910306-1, also in stock.