What was found
APU FAULT LIGHT LIGHT ON, APU OPERATES WITHOUT A PROTECTIVE SHUT DOWN DIRECTLY DEFERRED BY TOMC. ONBOARD FLIGHT MECHANIC PERFORMED DDP. DISPATCH DESK: 53 NAME: A.C DATE: 20-SEP-22- NOC DESK: OPB NAME: C.A DATE: 20-SEP-22- DEFERRED DIRECTLY BY TOMC REMOVE AND REPLACED APU STARTER GENERATOR IAW AMM 49-41-21 OP CHECK AND LEAK CHECK GOOD DEFER CLEARED AND PLACARD REMOVED. ROTABLE PARTS CHANGE WAS INDICATED - TT # 1876832 SN OFF 0566 GENERATOR, APU, OFF 29-2421-9-0004 0566 ON 29-2421-9-0004 0007