As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) DURING CLIMB OUT AFTER TAKEOFF, THE LT PYLON BLEED AIR LEAK LIGHT CAME ON. REDUCED POWER ON LT ENGINE, LIGHT WENT OUT AFTER ABOUT 1 MINUTE, RETURNED TO AIRPORT. INSPECTION FOUND IB END OF OZONE CONVERTER IN LOW PRESSURE BLEED AIR SYSTEM, MISALIGNED AND HAD BLOWN THE COUPLING SEAL P/N SD028-226. REPLACED SEAL AND REALIGNED COUPLING. GROUND RUN FUNCTION CHECK SERVICEABLE.