Service difficulty report · Magnet

Difficulty date
November 13, 2014
Submitted
December 5, 2014
Operation
General aviation
Filed by
S7HR883J
Aircraft Electrical Components Inc
Engine
Cont IO550N
Part
Magnet
Condition
Failed
Location
Magneto
Component
Magneto · S6RSC25P
Component part number
10500556101
Stage of operation
NR
How discovered
O
Nature of condition
R
Precautionary procedure
A

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

What was found

NOTED CAST PERMANENT MAGNET ASSEMBLY HAS ROTATED ON ROTOR SHAFT. IMPULSE COUPLING APPEARS TO HAVE ENGAGED AT HIGHER RPM; FLYWEIGHTS DAMAGED. TORSION SHOCKING DUE TO UNDERWEIGHTED PROP.