As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
APU "FAULT" LIGHT ILLUMINATED AT APU START PER QRH ATTEMPTED 2ND START AFTER FAULT LIGHT EXTINGUISHED 2ND STARTED SUCCESSFUL. GROUNDED - YES. PERFORMED APU BITE TEST FOUND FAULT 49-41010. STARTED APU AND FAULT LIGHT REMAINED EXTINGUISH. CSS APU PASSED.