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SlickSTART Bulletin SB1-06

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bakerocb

Joined: 15 Jan 2006
Posts: 727
Location: FAIRFAX VA

Posted: Wed Aug 30, 2006 2:22 pm Post subject: SlickSTART Bulletin SB1-06

8/30/2006



Hello Fellow Builders with Unison SlickSTART Ignition Boosters, Unison has 

just published SB1-06 which calls for removal of pin 2 from the unit and the 

associated wiring within 20 flight hours or at the next scheduled 

maintenance, whichever is sooner.



Pin 2 is the pin that gets connected to the non boosted magneto (usually the 

right one) P lead stud. During cranking this connection automatically 

grounds out the non boosted magneto so that it cannot prematurely fire and 

cause kickback.



Once this modification has been made to the SlickSTART unit one must ensure 

that the aircraft magneto / ignition switching system is such that the non 

boosted magneto is grounded out during cranking by the switching system.##



Unison is directing this change because the pin 2 connection to the non 

boosted magneto "potentially compromises the redundancy of the ignition 

system".



Shoot me an email if you have questions.



OC -- The best investment we will ever make is in gathering knowledge.



## PS: My installation has separate switches for each magneto. I always 

cranked with the right magneto switch turned OFF (grounded out) just to 

doubly ensure that the right magneto could not fire prematurely. All of my 

left (boosted) magneto spark plug leads go to the upper plugs in each 

cylinder to ensure getting better odds of sparking than from a potentially 

oil fouled lower plug.

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nuckollsr(at)cox.net
Guest

Posted: Wed Aug 30, 2006 5:53 pm Post subject: SlickSTART Bulletin SB1-06

At 06:21 PM 8/30/2006 -0400, you wrote:



 	  Quote: 	
		  



8/30/2006



Hello Fellow Builders with Unison SlickSTART Ignition Boosters, Unison has 

just published SB1-06 which calls for removal of pin 2 from the unit and 

the associated wiring within 20 flight hours or at the next scheduled 

maintenance, whichever is sooner.



Pin 2 is the pin that gets connected to the non boosted magneto (usually 

the right one) P lead stud. During cranking this connection automatically 

grounds out the non boosted magneto so that it cannot prematurely fire and 

cause kickback.



Once this modification has been made to the SlickSTART unit one must 

ensure that the aircraft magneto / ignition switching system is such that 

the non boosted magneto is grounded out during cranking by the switching 

system.##



Unison is directing this change because the pin 2 connection to the non 

boosted magneto "potentially compromises the redundancy of the ignition 

system".



Shoot me an email if you have questions.



OC -- The best investment we will ever make is in gathering knowledge.


	


     Good data sir! Do you have a copy of the SB? Is it available on the

     net? I'd like to have a copy for the archives.



     Bob . . .

      ---------------------------------------------------------

      < What is so wonderful about scientific truth...is that >

      < the authority which determines whether there can be   >

      < debate or not does not reside in some fraternity of   >

      < scientists; nor is it divine. The authority rests     >

      < with experiment.                                      >

      <                            --Lawrence M. Krauss       >

      ---------------------------------------------------------

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