Service difficulty report · Wire · Beech 58

Difficulty date
July 10, 2018
Submitted
July 13, 2018
Operation
Air carrier
Aircraft
N910SA
Make and model
Beech 58
Aircraft serial
TH1910
Aircraft time
11,851 hours
Engine
Cont IO550C
Engine time
397 hours
Part
Wire
Condition
Broken
Location
Alternator
Part time
397 hours
Component
Alternator
Component part number
C28150
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

THE LT ALTERNATOR WAS REMOVED FOR ROUTINE INSPECTIONS. AFTER REMOVING THE COVER FROM THE BACK OF THE ALTERNATOR, THE TECHNICIAN NOTED SOME GREEN DISCOLORATION ON ONE OF THE DIODES. FURTHER INVESTIGATION DISCLOSED THE DIODE WIRE WAS BROKEN OFF OF THE DIODE BASE. THE SAME WIRE WAS DISCOVERED BROKEN OFF AT THE TOP OF AN ADJACENT DIODE. REPLACED THE ALTERNATOR.

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