As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
INTERMITTENT APU MAINT LT ILLUMINATED- APU RUNNING PROVIDING POWER AND AIR. ACFT GROUNDED. PERFORMED BIT TEST IAW 49-60, TASK 801, REVIEWED HISTORY WITH MX CONTROL. FOUND CODE 49-72207, START 0. RAN APU FOR 30 MIN NO BLUE LIGHT. PG NOTE THIS IS CONSIDERED A NUISANCE MESSAGE 49-72205-49-72209 WILL APPEAR IN MAINT. HISTORY BUT DOES NOT REQUIRE MX ACTION. ACFT IS OK FOR CONTINUED SERVICE.