As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFTER T/O LAV SMOKE DETECTOR ALARMED WITH NO APPARENT REASON IT WENT OUT ABOUT 2 MINUTES LATER AND NEVER RETURNED COMPLIED WITH CHECKLIST CONTINUED TO DESTINATION. NO OIL ODOR PRESENT. CREW DID NOT REPORT ANY ODORS. COULD NOT DUPLICATE ALARM. R & R LAV SMOKE DETECTOR IAW AMM 26-12-11-000-801/400-801.