As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFTER SHUTDOWN ATTEMPTED TO APPLY AIR CONDITIONING WITH APU INITIALLY. APU BLEED AIR SWITCH APPEARED NOT TO WORK. NO AIR WITH APU BLEED SWITCH ON. PERFORMED CURRENT STATES BITE NO FAULTS NOTED AND A FAULT HISTORY BITE NO FAULTS FOUND AND A MAINTENANCE HISTORY BITE TEST NO FAULTS NOTED. STARTED APU. APU HOLDS ELECT LOAD AND AIR AT 40 PSI BOTH PACKS OPS CHECKED GOOD.