As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON SHORT FINAL WITH ENG AND AIRFOIL A/I ON, THERE WAS A BURNING ODOR IN AFT CABIN AND F/O SIDE AFT LAV SMOKE DETECTOR WAS SOUNDING. ODOR CLEARED WHEN AIRFOIL A/I WAS TURNED OFF. CHECKED A/C FOR ENGINE AND HYDRAULIC LEAKS. NONE NOTED. PERFORMED OPN 5089 PNEU SYSTEM DUCT BURNOUT. CHECKS GOOD. ALSO PERFORMED OPN 5088 PNEU DIST CABIN SMOKE/ODOR TROUBLESHOOTING.