As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON FINAL APPROACH, AN ACRID BURNING SMELL WAS DETECTED IN CBN/ CKPT. BOTH AFT SMOKE DETS WENT OFF. NO VISIBLE CONTAMINATION NOTED. PERFORMED DUCT BURNOUT PROCEDURES PER MM. INSP AREA FOR LKS AND SMELL/ NO PROBS NOTED. COALESCER BAGS PREV RPLD.