First of all, thanks John Halle and Tom Gourley for your recent post on the potential problems with the Slick/Unison 6310 mags. Very informative and insightful.

 

I have a Legacy with a Performance Engines IO-550 using the 6310 mags.  The airplane has about 250 hrs and has been trouble free for the most part. Absolutely NO engine/ignition problems at all.

 

I have a few questions for John,Tom and/or the group:

 

* Is this a common problem, have others experienced issues or failures with the 6310 mags?

 

* Does anyone (including Unison) have a clue as to what might be causing these pre-mature failures?

 

* The service bulletin states that when you change a mag or update it, you then pull it again and again to re-inspect it.  That looks like a LOT of work.  With the upper deck induction and fuel injection on this engine, does ALL that have to be removed to pull a mag or can you somehow slide it out with at least some of that in place?

 

*  Any further information or experiences would be greatly appreciated.

 

Thanks again John and Tom!! 

 

Regards,

 

Erik Larson

 

N74FX