Narrative:

Departed cps on IFR flight plan. Climbing through 8000 ft on turbo 4 departure to enl VOR when electrical fire shut down all avionics and other electrical equipment. WX was VFR. I returned VFR to cps and called tower on my cell phone to report condition of aircraft and had them call st louis approach. I received clearance to land on runway 30R. I landed and after shutdown, I called the tower, who informed me, they had contacted st louis approach and let them know that aircraft was safely on ground. Maintenance then determined that avionics master switch had wires that grounded out on parking brake handle, shorting electrical system. Repaired damaged wire and tested aircraft. Found airworthy and flew out feb/sun/04 from cps on IFR flight plan. Aircraft worked perfectly and no further events took place.

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Original NASA ASRS Text

Title: A C180 PLT EXPERIENCES AN ELECTRICAL FIRE INFLT RESULTING IN AN EMER LNDG.

Narrative: DEPARTED CPS ON IFR FLT PLAN. CLBING THROUGH 8000 FT ON TURBO 4 DEP TO ENL VOR WHEN ELECTRICAL FIRE SHUT DOWN ALL AVIONICS AND OTHER ELECTRICAL EQUIP. WX WAS VFR. I RETURNED VFR TO CPS AND CALLED TWR ON MY CELL PHONE TO RPT CONDITION OF ACFT AND HAD THEM CALL ST LOUIS APCH. I RECEIVED CLRNC TO LAND ON RWY 30R. I LANDED AND AFTER SHUTDOWN, I CALLED THE TWR, WHO INFORMED ME, THEY HAD CONTACTED ST LOUIS APCH AND LET THEM KNOW THAT ACFT WAS SAFELY ON GND. MAINT THEN DETERMINED THAT AVIONICS MASTER SWITCH HAD WIRES THAT GNDED OUT ON PARKING BRAKE HANDLE, SHORTING ELECTRICAL SYS. REPAIRED DAMAGED WIRE AND TESTED ACFT. FOUND AIRWORTHY AND FLEW OUT FEB/SUN/04 FROM CPS ON IFR FLT PLAN. ACFT WORKED PERFECTLY AND NO FURTHER EVENTS TOOK PLACE.

Data retrieved from NASA's ASRS site as of July 2007 and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.