As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFTER TAKEOFF, BURNING ELEC PLASTIC SMELL. DISSIPATED AFTER 25 MIN. CREW COMMENTED, LIKE OIL SMELL. FOUND NR 2 ENG AFT LINEAR HYD ACTUATOR LEAKING ON ENG DUCTING. REPLACED ORIFICE VLV O RING IAW AMM MT78-01. LEAKS CHECKED GOOD. ALSO REPLACED BOTH RECIRCULATION FILTERS IAW AMM 21-21-41. ACCOMPLISHED PACK BURN, NO SMELL NOTED IN CABIN OR COCKPIT. ALSO REF SEQ 0312002 FOR LEAKING ACTUATOR REPAIR.