As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING CLIMB FAULT LIGHT ILLUMINATED FOLLOWED BY APU SHUTDOWN. ATTEMPTED RESTART IAW QRH. UNSUCCESSFUL. TROUBLESHOT IAW 49-11-00-1 FIM AND FOUND DELTA PRESSURE SWITCH FAULTY. R & R IAW AMM 49-27-15/401. OPS CKD NORMAL. ACFT OK FOR SERVICE.