What was found
THE AIRCRAFT WAS STRUCK BY A BAGGAGE CART CAUSING DAMAGE TO THE LEFT VENTRAL FIN AND THE REAR FUSELAGE SKIN AT FRAME STATION 773.55 AND STRINGER 1520. THE SKIN WAS DAMAGED OVER AN AREA APPROXIMATELY 3 INCHES BY 5 INCHES. THE FRAME AT STATION 773.55 WAS DEFORMED AND CRACKED AT STRINGER LINE 1520, STRINGER 1520 WAS DEFORMED. COMPLETED A SPLICE IN REPAIR TO FRAME 773.55. COMPLETED A SPLICE IN REPAIR TO STRINGER 1520. COMPLETED A DOUBLER/TRIPLER REPAIR TO THE SKIN DAMAGED AREA. ALL WORK COMPLETED IAW SAAB ENGINEER STATEMENT 340SDS010275 AND MESABA AIRLINES EOS53371.