As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
BURNING ODOR IN BOTH COCKPIT AND CABIN AS ACFT PULLED INTO RAMP. ODOR DISSAPATED WHEN AC PACKS TURNED OFF. TIGHTENED LOOSE HOSE AT R/S HEAT EXCH. IAW JIC 21-51-51 AND UNCLOGGED L/S ACM WATER SPRAY NOZZLE IAW JIC 21-51-91. PERFORMED ENGINES GRD RUN IAW JIC 10030. NO ODOR OR SMOKE NOTED DURING OR AFTER OPS CHECK.