Small transport makes emergency descent following complete loss of electrical system.

Attributes
ACN	234249
Time
Date	199302
Day	Tue
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : lal
State Reference	FL
Altitude	msl bound lower : 20000 msl bound upper : 20000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	artcc : zjx
Operator	general aviation : corporate
Make Model Name	Small Transport
Flight Phase	cruise other other other
Route In Use	enroute : direct
Flight Plan	IFR
Person 1
Affiliation	Other
Function	flight crew : single pilot
Qualification	pilot : commercial pilot : instrument
Experience	flight time last 90 days : 100 flight time total : 6000 flight time type : 100
ASRS Report	234249
Person 2
Affiliation	government : faa
Function	controller : radar
Qualification	controller : radar
Events
Anomaly	aircraft equipment problem : critical
Independent Detector	aircraft equipment other aircraft equipment : unspecified other flight crewa
Resolutory Action	flight crew : declared emergency other
Consequence	Other
Supplementary
Primary Problem	Aircraft
Air Traffic Incident	other

Narrative:

Right alternator failed first. 30 seconds later, left alternator failed with 15 volts in battery. Lost communications with center. All electrical system in aircraft were inoperative. I was in VMC. I made a 180 degree turn and descended at 2000 FPM. Left alternator came back on line at 10000 ft. Was able to communicate with center and landed at lakeland. Right alternator was repaired along with electrical short to left alternator and flight resumed the next day.

Original NASA ASRS Text

Title: SMT MAKES EMER DSCNT FOLLOWING COMPLETE LOSS OF ELECTRICAL SYS.

Narrative: R ALTERNATOR FAILED FIRST. 30 SECONDS LATER, L ALTERNATOR FAILED WITH 15 VOLTS IN BATTERY. LOST COMS WITH CTR. ALL ELECTRICAL SYS IN ACFT WERE INOP. I WAS IN VMC. I MADE A 180 DEG TURN AND DSNDED AT 2000 FPM. L ALTERNATOR CAME BACK ON LINE AT 10000 FT. WAS ABLE TO COMMUNICATE WITH CTR AND LANDED AT LAKELAND. R ALTERNATOR WAS REPAIRED ALONG WITH ELECTRICAL SHORT TO L ALTERNATOR AND FLT RESUMED THE NEXT DAY.

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.