Service difficulty report · Distributor Blk · Robsin R22BETAII

Difficulty date
February 1, 2013
Submitted
February 1, 2013
Operation
General aviation
Make and model
Robsin R22BETAII
Engine
Lyc O360J2A
Part
Distributor Blk
Part number
1357424
Condition
Defective
Location
Magneto
Part time
500 hours
Component
Magneto
Component part number
10600644201
Stage of operation
IN
How discovered
V
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

WHILE PERFORMING 500HR MAGNETO INSPECTIONS MECHANIC FOUND 2 DISTRIBUTOR BLOCK BUSHINGS LOOSE, AS WELL AS CRACKS FROM THE BUSHING BORE IN THE DISTRIBUTOR BLOCK TRAVELING OUT TO THE 1.125 DIAMETER. UPON INSPECTING 4 NEW DISTRIBUTOR BLOCKS FROM STOCK I FOUND ALL 4 HAD DEFECTS THAT SUSPECT THE CRACKS ORIGINATED AT. THE DEFECTS SEEM TO BE HAPPENING DURING THE MFG PROCESS. LOOKING AT THE DEFECT UNDER A MAGNIFYING GLASS THE DEFECT IS POROUS. CONTACTED MFG AND DESCRIBED THE PROBLEM, THEY SENT ME 6 NEW DISTRIBUTOR BLOCKS ON WARRANTY. ALL 6 OF THE NEW DISTRIBUTOR BLOCKS HAD THE SAME DEFECTS AND 4 OUT OF THE 6 WERE CRACKED. ON NOVEMBER 7TH 2012 REPORTED THE NEW DEFECTIVE BLOCKS TO MFG, SERVICE AND SALES REP, HE ASSURED ME THE MFG QC DEPARTMENT WOULD CONTACT ME. TO THIS DATE NO ONE HAS CONTACTED ME FROM THEIR QC DEPARTMENT.