As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) DURING A FUNCTIONAL TEST OF THE DE-ICE BOOT, WE HAVE CONNECTED AN AIR PRESSURE REGULATOR TO THE HOSE BLEED AIR FLEXIBLE LINE AND WE HAVE NOTICED THAT THE FLEXIBLE HOSE IS LEAKING. THIS HOSE IS DIRECTLY CONNECTED TO THE ENGINE P3 PICK UP, SO IF THE FLEXIBLE LINE IS LEAKING THE ENGINE LOOSE P3 AIR. AFTER THE DISCOVERY WE HAVE CHANGED THE FLEXIBLE LINE WITH A NEW 1 THAT WE HAVE ORDER LAST WEEK.