What was found
FOUND NR 1 LT T/R DAMAGED. FOUND LT LWR SCREWJACK BROKE OFF AND DAMAGED THE TRANSLATING COWL, DAMAGED PARTS FOUND AT RUNWAY TOUCH DOWN AREA. VISUALLY INSPECTED LT WING, FLAP, AFT FUSELAGE, STAB SURFACE AND NO DAMAGE FOUND. MANUAL DEPLOY AND STOW NR 1 RT REVERSER HALF AND FOUND OK. REVERSER P/N MUST BE 683L216G04 FOR NR1 LT CONFIG PER IPC. REMOVED AND REPLACED NR 1 ENGINE LT T/R COWL AS PER MM 78-33-01-4 AND CARRIED OUT ADJUSTMENT TEST PER MM 78-30-00-5. ALL CHECKED NORMAL. ACFT OK FOR SERVICE. CLOSED ALL NR 1 ENGINE COWLS PER MM 71-10-00.