SDR 98ZZZX1078

Service difficulty report · Drive Coupling · Beech 58

Difficulty date
March 5, 1998
Submitted
March 26, 2000
Operation
General aviation
Aircraft
N100QD
Make and model
Beech 58
Aircraft serial
TH619
Part
Drive Coupling
Part number
640922A
Condition
Failed
Location
Alternator
Part time
5,000 hours
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

SUBMITTER STATED ALTERNATOR DRIVE HAS NO TBO AND ON FAILURE OF THIS UNIT THE INTERNAL GEAR AND ENGINE OIL SUPPLY ARE FOULED WITH METAL AND DEBRIS WHICH COULD CAUSE A CATASTROPHIC ENGINE FAILURE. PART SHOULD HAVE LIFE-LIMIT. MEL SHOULD NOT ALLOW OPERATION WITHOUT INSPECTION.

More about the Beech 58