What was found
ETOPS SIGNIFICANT SYSTEM, UPON APU START, ARCING WAS NOTICED AT APU BATTERY GROUNDING STUDS/LUGS. REPLACED GROUND LUG IAW SWPM 20-30-11. R & R APU BATTERY GROUND BRACKET AND STUD ASSY, SECURITY CHECKED GOOD.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
ETOPS SIGNIFICANT SYSTEM, UPON APU START, ARCING WAS NOTICED AT APU BATTERY GROUNDING STUDS/LUGS. REPLACED GROUND LUG IAW SWPM 20-30-11. R & R APU BATTERY GROUND BRACKET AND STUD ASSY, SECURITY CHECKED GOOD.