SUBJECT: A condition in the point assemblies of Slick single point magnetos that might lead
to decreased service life.
MAGNETO MODELS AFFECTED: The following Impulse Coupled and Direct Drive Magnetos
with Serial Numbers between 11110001 thru 12030902;
and M3081 Point Kits dated 11/01/2011 thru 3/22/2012.
4301, 4302, 4309, 4316, 4330, 4333, 4370, 4371, 4372, 4373, 4374, 4381
6310, 6313, 6314, 6320, 6324, 6331, 6340, 6350, 6351, 6355, 6360, 6361, 6362, 6364,
6367, 6379, 6382, 6399
ENGINE MODELS AFFECTED: Engines utilizing Slick 4200 / 6200 OR 4300 / 6300 series
Impulse and Direct Drive magnetos.
AIRFRAME MODELS AFFECTED: Aircraft utilizing Slick 4200 / 6200 OR 4300 / 6300 series
Impulse and Direct Drive magnetos
INFORMATION: Champion Aerospace has identified a condition in the point assemblies of single point magnetos that may lead to decreased service life. This issue was identified based on an extremely limited number of product returns. The component assemblies met all
acceptance criteria at the time of production. Champion has since made improvements to the process and acceptance criteria to make the new product more robust. On some product manufactured prior to this change, we have seen additional returns of point contacts that exhibit accelerated wear in magnetos with low service hours, prompting the issue of this Service Bulletin. Typical symptoms are unusual RPM drop during magneto check, difficulty starting, rough running engine, and/or unstable point timing upon installation.
COMPLIANCE: Replace magneto or affected point assemblies in subject magnetos at earliest convenient maintenance time not to exceed the next scheduled maintenance period. If magnetos have more than 100 hours Time In Service (TIS) the points can be replaced at the next regular maintenance interval
For Details Refer Slick Service Bulletin SB1-12 Dated 6-09-2012