As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ACRID ODOR IN COCKPIT DURING CRUISE AND IN DESCENT LASTING FOR APPROX. 10 SECONDS EACH TIME. FOUND GALLEY CONTROL PANEL AT 1R WITH ACRID ODOR. SUSPECT 5 AMP FREEZER C/B AS SOURCE. (NOT TRIPPED) REPLACED C/B AND OPERATED FOR SEVERAL HOURS WITH NO DISCREPANCIES NOTED. OK FOR SVC. ETOPS CATEGORY 'F': ANY OTHER EVENT DETRIMENTAL TO ETOPS.