As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFTER TAKEOFF WITH ENGINES AT CLIMB POWER, THE LT PYLON BLEED LEAK RED CAS MESSAGE CAME ON. THRUST LEVER WAS REDUCED TO IDLE PER CHECKLIST. AFTER APPROX 1 MINUTE THE MESSAGE CLEARED. ENGINE WAS LEFT AT IDLE WHILE WE RETURNED FOR LANDING.