As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
APU MX LIGHT ON MX MSG 49 41244. GROUNDED YES. STARTER/GENERATOR HAS BAD DIODE. ETOPS PARTS VERIFICATION: STARTER PN/28B545 7 START CONVERTER PN/452466 250. SEAMC MIKE NOTIFIED. 08675. INSTALLED NEW APU STARTER GENERATOR PN/28B545 7 PER MM 49-41-21 400 801. OPS CHECK OF STARTER GENERATOR GOOD. INSTALLED NEW START CONVERTER UNIT PN/1152466 250 PER MM 49-41-61-00 801. OPS CHECK OF START CONVERTER UNIT GOOD.