As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFTER LANDING ATTEMPTED APU START - LOW OIL PRESS LIGHT ILLUMINATED AND NO START. GROUNDED - YES. PERFORMED BITE CHECK. NO FAULT NOTED. PERFORMED APU OPS TEST PER B737-800 AMM 49-11-00 OPS TEST NORMAL. A/C RELEASED PER MEL 49-99A. PER SEAMC, CSS PASS. CLEARS MEL 49-99A.