As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
APU FAULT LIGHT ILLUMINATED DURING IN-FLIGHT START. EXTINGUISHED AFTER 5 MINUTES. SECOND ATTEMPT SUCCESSFUL. R & R PRIMARY FUEL MANIFOLD IAW MM 49-31-16, LEAK CHECKED GOOD. R & R INLET TEMP SENSOR IAW MM 49-61-31. APU OPS CHECKED GOOD.