What was found
FLIGHT 4940 ODOR IN COCKPIT LIKE BURNED RUBBER. COULD NOT DUPLICATE. OPERATIONAL CHECK OF AC SYSTEM NORMAL. NO BURNED RUBBER.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
FLIGHT 4940 ODOR IN COCKPIT LIKE BURNED RUBBER. COULD NOT DUPLICATE. OPERATIONAL CHECK OF AC SYSTEM NORMAL. NO BURNED RUBBER.