What was found
DURING DESCENT FOR LANDING IN NORMAL CONFIGURATION; FLAPS & GEAR UP, SPEED BRAKES RETRACTED, 175KTS, BOTH PILOTS FELT A VIBRATION AND ASSOCIATION SOUND WHEN FLAPS 1 WAS SELECTED. THE VIBRATION AND SOUND CONTINUED UNTIL FLAP 2 WAS SELECTED. THE VIBRATION AND SOUND CONTINUED UNTIL FLAP 2 WAS SELECTED. CORRECTIVE ACTION: FOUND TAPE ATTACHED TO L/H LOWER FLAP TRACK THAT APPEARS TO HAVE PEELED BACK AND TORN APART DURING FLIGHT. DURING VIBRATION/NOISE INSPECTION, I COULD NOT FIND ANY OTHER CULPRITS OF REPORTED EVENT. REF AMM 05-50-27-200-801-A.