Service difficulty report · Terminal · Piper PA28181

Difficulty date
November 7, 2023
Submitted
November 7, 2023
Operation
General aviation
Aircraft
N990AM
Make and model
Piper PA28181
Aircraft serial
2881580
Aircraft time
637 hours
Part
Terminal
Part number
UNKNOWN
Condition
Broken
Location
Alternator
Stage of operation
CR
How discovered
V
Nature of condition
H, B
Precautionary procedure
A

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

What was found

RECEIVED ALTERNATOR FAILURE ANNUNCIATION ACCOMPANIED BY NO ALTERNATOR AMPS AND SMELL OF BURNING ELECTRICAL WHILE ENROUTE CRUISE. ALTERNATOR WAS DEACTIVATED. CAUSE OF FAILURE WAS THE RING TERMINAL CONNECTOR TO ALTERNATOR HAD BROKEN. ARCING BURNED INSULATION AND CAUSED INTERNAL DAMAGE TO THE ALTERNATOR WHICH REQUIRED REPLACEMENT. GROUNDING JUMPER RING TERMINAL FROM ALTERNATOR TO STARTER ON STARTER LUG WAS ALSO SHEARED. IT APPEARS THE WIRE LOOM CONTAINING FIELD,GROUND,STARTER & POWER CABLES WERE SECURED WITH LITTLE TO NO SLACK TO ALLOW FOR VIBRATION.

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