As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SMOKE WARNING MESSAGE FOR THE CREW REST UPPER DOO. BRIEF SMOKE ODOR NOTED IN CABIN AND FLT DECK. FOUND LT HEAT EXCHANGER BROKEN AND DUCT LOOSE. FOUND DAMAGED LEFT PACK RAM AIR SCOOP. REMOVED AND REPLACED LEFT DUAL HEAT EXCHANGER AND RAM AIR INLET DUCT IAW AMM 21-52-01, 21-52-22. REPLACED RAM AIR INLET DOOR DOOR SEAL ASSY. REPLACED THE LAMPS IN THE STAIR LIGHTS IAW AMM 33-29-15, OPS CHECKED GOOD. NO EVIDENCE OF SMOKE ODOR.