As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING CSS APU WOULD NOT START. FAULT LIGHT ILLUMINATED. ACCOMPLISHED BITE TESET PER FIM TASK 49-60-00-810-801, SHOWED MAINTENANCE MESSAGE 49-41011. GROUND STARTED APU TWO TIMES, NO FAULT LIGHTS ILLUMINATED. OPS NORMAL. REPLACED APU FUEL FLOW DIVIDER SOLENOID AND APU SGU. REMOVED AND REPLACED APU START GENERATOR IAW AMM 49-41-21-000-801. OPS CHECKED NORMAL. LEAK CHECK OK.