As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
APU AUTO SHUT DOWN DURING LOADING REVERSE FLOW ON ECU. CLEARED AND RE- START, FOUND APU TO BE SURGING BADLY. (<P>RE OPENED MDDR 108395 IAW B767 DDG 49-11-01A CAT C DUE 18MAR2019</P><P>11APR19, LP 1050128: APU REMOVED AND REPLACED ON TC# A-49-999-00-01. PERFORMED SATISFACTORY, LEAK AND OPERATIONAL CHECK.