Service difficulty report · Magneto · Piper PA23250

Difficulty date
October 5, 2000
Submitted
October 31, 2000
Operation
General aviation
Aircraft
N6669Y
Make and model
Piper PA23250
Aircraft serial
273986
Engine
Lyc IO540C4B5
Part
Magneto
Condition
Damaged
Location
Engine
Component
Magneto
Component part number
S6LN200
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

MAGNETOS REMOVED FOR OVERHAUL. UPON EXAM OF LT MAG DRIVE GEAR AND ROTATING MAGNET THREAD END, NOTED NUT, PN 10-163178, WAS LOOSE. ALSO, DRIVE BUSHING, PN 10-357193 WAS LOOSE ALLOWING PLATE DRIVE, PN 10-163216 TO SHIFT ALIGNMENT OF DRIVE GEAR WHICH ATE INTO BACK OF ENG CASE. THIS MISALIGNMENT CREATED A LOT OF DAMAGE THAT COULD NOT BE REPAIRED. ALSO DISCOVERED A WASHER WAS LEFT OUT WHEN MAG O/H''''D. IT GOES BTWN DRIVE NUT PN 10-163178 AND BUSHING PN 10-357193. WITH THIS WASHER, PN 10-116860 OUT, PROPER TORQUE COULD NOT BE OBTAINED. SUBMITTER STATED NO HISTORY AS TO WHEN MAGS O/H''''D, AND NO HISTORY OF TIME WHEN INSTALLED. (X)

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