What was found
ELECTRICAL ARC FROM GROUNDING STUD ON ENGINE SUPPORT FRAME TO SUPPORT FRAME ITSELF. THE SUPPORT FRAME WAS REPLACED WITH NEW IMPROPER BONDING BETWEEN LUG AND SUPPORT FRAME APPEARS TO BE THE CAUSE OF THE ARCING DAMAGE TO THE FRAME. (K)
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
ELECTRICAL ARC FROM GROUNDING STUD ON ENGINE SUPPORT FRAME TO SUPPORT FRAME ITSELF. THE SUPPORT FRAME WAS REPLACED WITH NEW IMPROPER BONDING BETWEEN LUG AND SUPPORT FRAME APPEARS TO BE THE CAUSE OF THE ARCING DAMAGE TO THE FRAME. (K)