As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING LEAK DOWN CHECK AFTER REBUILD OF WHEEL, DISCOVERED AIR LEAKING FROM VALVE STEM AREA. REMOVED VALVE STEM FROM WHEEL AND HAD STEM NTD'D BY LOCAL SHOP. THEY DISCOVERED A CRACK IN THE SEAL AREA OF THE STEM. REPLACED VALVE STEM WITH A NEW UNIT. THE DUNLOP OVERHAUL MANUAL DOES NOT SPECIFY NDT OF THE VALVE STEM DURING OVERHAUL PROCEDURES.