What was found
FLT 558 - MSLP-KMIA - DURING CLIMB-OUT, LOST HYDRAULIC SYSTEMS ONE AND TWO. RETURNED TO MSLP AND A NORMAL LANDING WITHOUT INCIDENT WAS MADE. NR 1 TIRE MISSING A LARGE SECTION OF TREAD, NR 5 TIRE DAMAGED BY GROUND DEBRIS. BOTH NR 1 AND 5 WHEELS WERE INTACT. LEFT WING INBOARD FLAP WELL AREA HAS NUMEROUS HYDRAULIC LINES DAMAGED. FLAP/AILERON CABLES DAMAGED. DAMAGE TO THE INBOARD LEFT FLAP AND FLAP FAIRING. DAMAGE TO NUMEROUS WIRE BUNDLES, BRACKETS AND LINKS. PRELIMINARY INVESTIGATION DETERMINED THAT A SECTION OF THRUST REVERSER TURNING VANE WAS FOUND ON THE RUNWAY IMMEDIATELY AFTER THIS INCIDENT OCCURRED. AIRCRAFT UNDER REPAIR AT MSLP. (M)