Narrative:

I lost all electrical power in the climb from the runway at 400 ft AGL. My radios; transponder and all avionics went dark; and the alternator appeared to have failed. My hand was on the gear knob; but I had not raised it yet. I made a standard pattern turn to the left to return to the runway for immediate landing. I checked the breakers; and found none offline. On downwind; base and final; I did not see any conflicting traffic. The tower did a great job; and I did see a green light gun. I rocked my wings to acknowledge and landed without flaps; incident or further communication. I called the tower on a cell phone to thank them; and cancel the IFR plan. My mechanic called today to tell me that the likely cause was a battery in a low voltage condition and the alternator went offline to protect the system.

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Original NASA ASRS Text

Title: After suffering a complete electrical failure after takeoff; a C-182RG pilot flew a closed course pattern and landed with light signal clearance from the Tower.

Narrative: I lost all electrical power in the climb from the runway at 400 FT AGL. My radios; transponder and all avionics went dark; and the alternator appeared to have failed. My hand was on the gear knob; but I had not raised it yet. I made a standard pattern turn to the left to return to the runway for immediate landing. I checked the breakers; and found none offline. On downwind; base and final; I did not see any conflicting traffic. The Tower did a great job; and I did see a green light gun. I rocked my wings to acknowledge and landed without flaps; incident or further communication. I called the Tower on a cell phone to thank them; and cancel the IFR plan. My mechanic called today to tell me that the likely cause was a battery in a low voltage condition and the alternator went offline to protect the system.

Data retrieved from NASA's ASRS site as of April 2012 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.