As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
OILY SMOKE IN AFT CABIN ON CLIMBOUT. ISOLATED NR 1 ENG AND PACK, SMOKE DISSIPATED. FOLLOWED AIR CONDITIONING SMOKE PROCEDURE IN POM. ENDED UP WITH 1 PACK OFF AND OTHER SWITCHES LATCHED. REPLACED NR 1 ACM AND INNER DUCT HOUSING TO THE HEAT EXCHANGER. REPLACED COALESCER BAG. C/W DUCT BURN OUT PER MM. OPS CHECKS OK.