As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFTER TAKEOFF SWEET SMELL IN COCKPIT SMILIAR TO HYDRAULIC FLUID IN ECS. PACK 1 OFF & IMPROVED. SUSPECT CONTAMINATION OF DUCTING-FOLLOWED TSM 05-50-00-810-831-A ISOLATED TO TYPE 1 APU. FOLLOWED TSM 49-00-00-810-921-A. GVI PERFORMED REQUIRES MORE T/S DUE TO PREVIOUS HISTORY APU WILL BE PLACED ON DMI FOR ADDITIONAL T/S. PACK 1 SOURCE OF ODOR SEE FOLLOWING LP FOR CORRECTIVE ACTION. RASY OEUR AP 3628185