As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
HEAVY MUSK STENCH WITH PACS ON. DIFFICULT TO BREATH DUE TO STRONG ODOR. PERFORM CONDITIONAL INSPECTION AMM 05-51-58-800-801-C3. RAN BOTH PACKS AND OPENED & INSPECTED BOTH PACK COMPARTMENTS WITH NO DISCREPANCIES. OPENED & INSPECTED ELECTRONICS BAY WITH NO DISCREPANCIES. STRONGEST ODOR IN THE FLT DECK. UNABLE TO DETERMINE SOURCE AT THIS TIME. APU R & R. THERE IS NO LONGER SMOKE OR ODOR IN CABIN OR FLIGHT DECK.