As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
INSPECTION TYPE:N/A, HEAVY SMOKE IN COCKPIT SHORTLY AFTER TAKEOFF, BEFORE GEAR RETRACTION. ALL A/C PACK INDICATIONS NORMAL. AIR TURNBACK TO JAX. *S/D* FOUND SMOKE FUMES TO BE SYDROL. FOUND LOOSE FITTING DRIPPING ONTO PACK (L), TIGHTENED FITTING, RUN ENGS, FUMES STILL PRESENT. REMOVED AND REPLACED 3 CHK VALVES AND PRESS REGULATOR IN HYD RES PRESS SYS.