As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
NR 12 SMOKE DETECTOR NOT TESTING. DEFERRED NR 12 SMOKE DETECTOR PER MEL 26-6-1 CAT C DMI 13315. REF DMI 13315 NR 12 SMOKE DETECTOR WON'T TEST. RELAMPED AND TESTED NR 12 SMOKE DETECTOR SYSTEM CHECKED GOOD PER M/M 26-10-6. THIS CLEARS DMI 13315. PLACARD REMOVED.