SDR 97ZZZX1204

Service difficulty report · Hub Assy

Difficulty date
March 10, 1997
Submitted
March 26, 2000
Operation
General aviation
Engine
Cont IO550*
Part
Hub Assy
Part number
649093
Condition
Failed
Location
Alternator
Stage of operation
IN
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

ALTERNATOR KEY (633342-10) FAILED CAUSING HUB ASSY TO SPIN ON ALTERNATOR SHAFT. THE RESULTS WERE EXCESSIVE WEAR TO ALTERNATOR SHAFT AND HUB ASSEMBLY. THERE WAS ALSO WEAR ON THE TEETH OF THE ALTERNATOR FACE GEAR.