As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
APU RELIABILITY COLD START ACCOMPLISHED ONT-RFD SAT -59/ FL390/ START UNSUCCESSFUL/ 3 ATTEMPTS. ITEM #3: DURING THE 2ND APU START APU "OIL Q" WENT FROM FULL TO "0.25" IT SUBSEQUENTLY AKO DISPLAYED "ADD" TEMPORARILY.(<P>SERVICED APU OIL IAW AMM 12-00-00. TRANSFERRED TO MDDR 144694 FOR APU COLD SOAK IAW MEL 25-AP-01. CAT N, DUE 01APR22. PLACARD INSTALLED.</P>)