What was found
NR 1 ENG WOULD NOT SHUT DOWN AFTER TWO ATTEMPTS. FUEL VALVE L ENG STATUS. MAINT MSG 73-60211. STATUS MSG WAS ALSO DISPLAYED WHEN ACFT WAS PICKED UP FROM GATE. ACCOMPLISHED CALLOUT EG6740 (PTT SEQ 7032006), NO FAULTS, NO MESSAGES. NR 1 ENG REQUIRES START AND SHUTDOWN 2X PER CALLOUT FOR OP CHECK. REPLACED FMU PER 73-21-01 PER LEAD INSTRUCTIONS. DUE TO FLAME DAMAGE TO WING AND FLAP AREA AFT OF NR 1 ENGINE TAILPIPE AFTER ENGINE MOTORING ACFT WILL REQUIRE INSPECTIONS REFERENCING MM PROCEDURE AFTER FIRE DAMAGE, SRM 51-20-03 FOR HEAT DAMAGE ANALYSIS AND GNMM 3-00-01-003 FOR HEAT DAMAGE EVALUATION.