ATX PIC RPT ON FACILITY MAINT PROCS AND LOA FOR SCHEDULED ACFT MAINT PROCS. AIRLINE MGMNT MAINT POLICY PROC.

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ENRTE FROM GRAND RAPIDS; MI; TO DETROIT; MI; WE SAW A FLASH OF LIGHT IN A CIRCUIT BREAKER PANEL. WE ADVISED ATC WE WOULD LIKE TO LAND IN LANSING; MI. WE DID NOT DECLARE AN EMER. WE LANDED AND PARKED WITH NO FURTHER PROB. WE OPERATE PART 135 OUT OF GRAND RAPIDS ON A CERTIFICATE BASED IN BATTLE CREEK; MI. THIS IS A TEMPORARY OP; UNTIL WE RECEIVE OUR OWN CERTIFICATE. I WAS UNDER THE UNDERSTANDING THAT XXX IN GRR WAS ABLE TO CONDUCT ALL OF OUR MAINT REQUIREMENTS. I CALLED XXX GRR TO DISCUSS THE SIT AND IF GA FBO COULD LOOK AT THE ACFT. THE PLANE WAS PROPERLY SIGNED OFF AS AIRWORTHY BY AN INSPECTOR AND I FLEW IT BACK TO GRR. SEVERAL DAYS LATER; I WAS ADVISED BY OUR CHIEF PLT THAT I HAD NOT FOLLOWED THE CORRECT PROC AND NOTIFIED THE DIRECTOR OF OPS; AND THE DIRECTOR OF MAINT IN BATTLE CREEK. I FEEL THAT THERE WAS A BREAKDOWN IN COMS BTWN BATTLE CREEK OPS AND OUR OPS IN GRR; IN THE PROPER PROCS FOR DEALING WITH A MAINT PROB. AS LONG AS I HAVE FLOWN WITH THE COMPANY (7 MONTHS) WE HAVE USED THE SAME PROC. MY SOLUTION IS THAT A WRITTEN LOA SHOULD BE ESTABLISHED BTWN ALL PARTIES (BTL OPS; GRR OPS; FAA) SO THERE IS SET OF GUIDELINES ON HOW TO DEAL WITH A SIMILAR SIT IN THE FUTURE.