As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LAV 203 AFT LT LAV SMOKE DETECTOR WENT OFF DURING CLIMB THEN STOPPED. CREW STATED THAT THERE WAS NO SMOKE OR BURNING ODOR IN THE AFT LEFT LAV. DUE TO SUSPECTED LEAKS IN AFT LT LAV. R/R AFT LT LAV FAUCET REF AMM 38-12. VERIFIED NO LEAKS. ALSO R/R SMOKE DET AFT LT LAV. (LP5529122)