As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFT CARGO SMOKE DETECTOR WARNING CAME ON DURING CLIMB-OUT. OCCURED TWICE, ONCE OUT OF SAIPAN AND ONCE OUT OF GUAM. THE AIRCRAFT RETURNED TO FIELD BOTH TIMES. THERE WAS NO FIRE FIGHTER TIME. THE AIRCRAFT WAS FERRIED TO SIAPAN FROM GUAM AFTER THE SECOND OCCURENCE DUE TO FIRE EXTINGUISHERS DISCHARGED. (M)