AN ACR MD88 FLC HAS THE CIRCUIT BREAKER TO THE CAPT'S DIGITAL FLT GUIDANCE COMPUTER OPEN WITH A LOUD POP AND THEY SMELLED ELECTRICAL FUMES. THIS WAS A REPEAT EVENT AND THE SYS WAS DISABLED IN ACCORDANCE WITH THE MEL.

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UPON TOUCHDOWN IN RSW; HEARD CIRCUIT BREAKER POP AND SMELLED ELECTRICAL FUME. DISSIPATED WHEN TURNING OFF RWY AND TAXIED INTO GATE. WITH COCKPIT FLOODS ON; FOUND DIGITAL FLT GUIDANCE COMPUTER #1 CIRCUIT BREAKER OPENED. RESET WITH SAME RESULTS. CALLED FOR CONTRACT MAINT. POSTED FIRE GUARD WHEN OPENING E&E COMPARTMENT. EVERYTHING CHKED OK. MAINT TRIED TO RESET CIRCUIT BREAKER WITH SAME RESULTS. ACFT WAS DISPATCHED WITH DIGITAL FLT GUIDANCE COMPUTER #1 AND FLT DIRECTOR COMMAND SYS #1 INOP. THIS WAS A REPEAT IRREGULARITY THAT CAUSED THE ACFT TO BE REMOVED FROM SVC EARLIER THAT DAY. THEY REPLACED DIGITAL FLT GUIDANCE COMPUTER #1. IT SHOULD ALSO BE NOTED THAT NO AUTOPLT WAS IN USE THROUGH APCH AND LNDG AND THAT DIGITAL FLT GUIDANCE COMPUTER #2 WAS SELECTED SINCE IT WAS THE FO'S LEG. I'M JUST HAPPY IT DIDN'T HAPPEN DURING THE WX PENETRATION INTO FLORIDA AND THAT IT WASN'T A FIRE OR SMOKE EVENT. CALLBACK CONVERSATION WITH RPTR REVEALED THE FOLLOWING INFO: THE CAPT OF THIS MD88 SAID THAT THE CIRCUIT TO HIS DIGITAL FLT GUIDANCE COMPUTER WAS NOT RE- ESTABLISHED DURING THE REST OF THE DAY. HE WAS VERY CRITICAL OF HIS COMPANY'S MAINT PROC. HE ALLEGED THAT THE MAINT PERSONNEL SIMPLY REPLACE COMPONENTS WITHOUT DIAGNOSING THE PROB AND HE SAID THAT THAT TECHNIQUE LED TO THE PROB IN THIS CASE.