Service difficulty report · Distributor Blk

Difficulty date
January 17, 2003
Submitted
January 28, 2003
Operation
General aviation
Engine
Lyc AEIO540D4D5
Part
Distributor Blk
Condition
Inoperative
Location
Magneto
Component
Magneto · Slick
Component part number
6393
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

MAGNETO REMOVED FROM ENGINE FOR 500 HOUR INSPECTION IAW MM. DURING INSPECTION FOUND THAT THE CARBON BRUSH WAS RUBBING AND CAUSING CARBON DUST. RECOMMENDATION IS TO HAVE MFG LOOK AT PROCESS OF MANUFACTURING AND LOOK AT REDUCING THE TOLERANCES BETWEEN THE DISTRIBUTOR BLOCK AND THE GEAR POST WHERE THEY FIT TOGETHER TO HELP PREVENT GEAR FROM ROCKING BACK AND FORTH. FURTHER INVESTIGATION BY MFG REQUIRED TO CORRECT PROBLEMS.