Narrative:

Accompanied by a friend; I was flying short trip (25 minutes) to have air conditioning charged. Had recently installed a new battery and intended to have charging system (alternator; voltage regulator) inspected by mechanic before upcoming trip. Fires in the area made for very hazy conditions. About 15 miles out; while speaking to approach; after establishing communication; I began to experience electrical failure. Radios fluctuated with loud whining noises; electric gauges and lights in plane cycled off and on with increased frequency. I notified approach that I was experiencing an electrical problems and would still like to land. Through the static; they told me to look for a green tower light and to descend to pattern altitude; then ATC cleared me to land. My radios failed completely at that point. At the sign of electrical problems; I lowered the gear handle about 8-10 miles from the field and descended to pattern altitude 1;300 feet; flew a downwind and right base and turned final. Everything seemed normal under the circumstances. I was shocked to land gear up on the runway centerline. We came to a halt and exited the airplane without incident. I realized that I had failed to confirm that the gear was down and locked by looking out the window as the gear down light was inoperative.

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Original NASA ASRS Text

Title: C210 pilot experienced electrical failure after having a new battery installed. The landing gear is selected down 8-10 miles from the field but the landing gear indicator lights have failed. A gear up landing ensues.

Narrative: Accompanied by a friend; I was flying short trip (25 minutes) to have air conditioning charged. Had recently installed a new battery and intended to have charging system (alternator; voltage regulator) inspected by mechanic before upcoming trip. Fires in the area made for very hazy conditions. About 15 miles out; while speaking to approach; after establishing communication; I began to experience electrical failure. Radios fluctuated with loud whining noises; electric gauges and lights in plane cycled off and on with increased frequency. I notified approach that I was experiencing an electrical problems and would still like to land. Through the static; they told me to look for a green tower light and to descend to pattern altitude; then ATC cleared me to land. My radios failed completely at that point. At the sign of electrical problems; I lowered the gear handle about 8-10 miles from the field and descended to pattern altitude 1;300 feet; flew a downwind and right base and turned final. Everything seemed normal under the circumstances. I was shocked to land gear up on the runway centerline. We came to a halt and exited the airplane without incident. I realized that I had failed to confirm that the gear was down and locked by looking out the window as the gear down light was inoperative.

Data retrieved from NASA's ASRS site 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.