As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) IN CRUISE LOUD GRINDING NOISE HEARD MID GALLEY, AFT J CLASS. AIRCRAFT FILLED WITH ACRID SMELL. AFT AND MID CABINS FILLED WITH SMOKE. SMELL AND SMOKE LASTED ONE TO TWO MINUTES. ALL SYSTEMS INDICATED NORMAL. PACK FLOW SET TO HIGH FOR 15 MINS. SMELL FOUND COMING FROM MID GALLEY AIR COOLER. CHILLER DE-ACT AND AIRCRAFT DISPATCHED UNDER MEL. NOTE: FURTHER INFO WILL FOLLOW AS AVAILABLE.