As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) TIRE WAS LOOSING AIR PRESSURE, ON INVESTIGATION IT WAS NOTED THAT THE AIR WAS LEAKING FROM HOLES THAT ARE LOCATED JUST UP FROM THE BEAD/SEAT AREA, APPARENTLY TO VENT AIR FROM BETWEEN THE LAYERS OF THE RUBBER. THIS IS THE THIRD TIME THAT WE HAVE CHANGED A MFG TIRE FOR THIS REASON.