As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FUME EVENT SHORT FINAL ACRID SMELL IN COCKPIT. TURNED OFF PACK 1 SMELL DISSAPATED AND TURNED INTO DISTINCT MANURE ODOR IN THE COCKPIT DURING TAXI TO THE GATE.-INSPECTED APU IAW TSM 49-00-00-810-921-A, PACKS 1+2 IAW TSM 21-00-00-615-002. NO FAULTS NOTED. COMPLIED WITH FUME INSPECTION IAW TSM 05-50-00-810-831-A. COULD NOT DUPLICATE. A/C OKAY FOR CONTINUED SERVICE.