As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
APU SHUTDOWN AUTOMATICALLY WITH ASSOCIATED FAULT LIGHT DURING TAXI INTO GATE AFTER LANDING. GROUNDED - YES. PERFORMED B737-800 FIM 49-40 TASK 802 AND 49-60 TASK 801, RESOLVED FAULT CODE 49-61262 PERFORMED FIM 49-60 TASK 817 INSPECTED APU WIRE HARNESS. REMOVED AND CLEANED P-2 COMMON PLUG AND OIL PRESSURE COMMON PLUG RAN APU AND STARTED ON FIRST ATTEMPT.