Service difficulty report · Points · Cirrus SR22

Difficulty date
July 11, 2011
Submitted
July 29, 2011
Operation
General aviation
Aircraft
N241CM
Make and model
Cirrus SR22
Aircraft serial
0357
Engine
Cont IO550*
Part
Points
Part number
10382584
Condition
Defective
Location
Magneto
Part time
20 hours
Component
Magneto
Component part number
10505661
Stage of operation
IN
How discovered
9
Nature of condition
O
Precautionary procedure
K

As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.

What was found

THE RT MAGNETO FAILED ON RUN UP, INSP OF THE MAGNETO REVEALED THAT THE TUNGSTEN CONTACT AREA ON THE FIXED SIDE OF THE POINTS HAD SEPARATED FROM THE BASE. THIS LOOKS TO BE SPOT WELDED TO THE NON TUNGSTEN PORTION OF THE CONTACT. WHEN THIS SEPARATED, IT WOULD NOT ALLOW THE POINTS TO MAKE CONTACT. THE PROPER POINT GAP IS AROUND .017. THE POINT CONTACT THAT SEPARATED IS .042, IT WAS FOUND FLOATING AROUND THE INSIDE OF THE MAGNETO. THIS SET OF POINTS WAS INSTALLED DURING THE 500 HR ROUTINE MAGNETO MX AND HAD A TOTAL OF 20.5 HRS IN SERVICE.

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