As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SMOKE ALARM WENT OFF IN FWD LAV CREW COULD SMELL ACRID SMELL. FOUND APU PUTTING OIL INTO PNEUMATIC DUCTS. FWD APU TO MCO REPLD DETECTOR BATTERY, REPLD LT AND RT COALESCER BAGS RAN BOTH ENGS AT 1.80 EPR FOR APPROX 15 MINS TO BURN OIL SMELL OUT.