What was found
ON ENGINE SHUTDOWN, THE CAPTAIN HEARD A RUBBING SOUND EMANATING FROM THE NR 1 ENGINE. TURNING THE PROPELLER BY HAND REPRODUCED THE RUBBING SOUND. THE POWER SECTION WAS REMOVED FOR INVESTIGATION. REMOVAL OF THE PT WHEEL REVEALED THAT THE NR 3 BEARING COVER ITEM NR 130 B SECTION 72-50-04 FIG 2, HAD SHIFTED AND WAS RUBBING AGAINST THE PT WHEEL. MAINTENANCE REPLACED THE POWER SECTION AND RETURNED THE AIRCRA FT TO SERVICE. LAST ENGINE OVERHAUL WAS BY PRATT AND WHITNEY IN 2000.