What was found
ON LANDING ROLL OUT, CREW REPORTED SMALL AMOUNT OF NOSE WHEEL VIBRATION AND SLUGGISH STEERING RESPONSE, TAXI TO BLOCKS WITHOUT ISSUES. DURING POST FLIGHT, CREW FOUND LEFT NOSE TIRE BEAD SEAL SEPARATED AND ZERO PRESSURE. MAINTENANCE EVALUATION REVEALED RIGHT NOSE TIRE ONLY HAD 42 PSI. BOTH NOSE WHEEL ASSY'S WERE REPLACED WITH FRESH OVERHAULED WHEELS. PAPERWORK REVIEW REVEALED BOTH NOSE WHEEL ASSY WERE REPLACED 2 LANDINGS PRIOR. INVESTIGATION OF PREVIOUS NOSE WHEEL INSTALL REVEALED WHEELS WERE INSTALLED BY A REPAIR STATION WITH ONLY SHELF PRESSURE AND WERE NOT SERVICED TO PROPER PRESSURE PER MM.