As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLIGHT DIVERTED TO HKG DUE TO SMOKE IN COCKPIT. FLIGHT DUMPED FUEL TO ALLOWABLE MAX LANDING WEIGHT. FOUND COALESCER BAG TO BE CLOGGED. REMOVED AND REPLACED NR 1 ACM COALESCER BAG IAW 21-54-05-2. OPERATED NR 1 ACM AND NOW NORMAL. PERFORMED ENG GROUND RUN ENG'S 1 ,2, 3 AND OPERATED BLEED SYSTEMS INDEPENDENTLY AND OPS TEST NORMAL. AC OK FOR SERVICE.