As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFT CHILLERS OPERATION ON STARTUP INTERMITTANT FA/S SMELLED SMOK E PERFORMED ICS SCU OPERATIONAL TEST ON ALL 4 SCU'S IN CMCS. TESTS ALL PASS. ACCOMPLISHED SMOKE OR FUME IN CABIN AND DEBRIEFED CREW REF AMM 05-51-99-99A-282A-A RAN CHILLERS FOR 1 HOUR AND NO SMOKE OR SMELL NOTED.