As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) CARGO BAY SMOKE DETECTOR WILL NOT TEST. MAINTENANCE.DETECTOR REMOVED S/N 608. INSTALLED 20/07/02. TIS 553.6 HOURS.THE INSTALLATION OF THESE SMOKE DETECTORS WAS MANDATED BY SWEDISH AD 1-151 TO IMPROVE RELIABILITY.CONSULTATION WITH SAAB REVEALED 12 CONFIRMED FAILURES ON FAA REG AIRCRAFT IN THE PAST 12 MONTHS.