Gear up landing due to electrical system malfunction.

Attributes
ACN	100365
Time
Date	198812
Day	Tue
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : cxo
State Reference	TX
Altitude	agl bound lower : 0 agl bound upper : 0
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Operator	general aviation : personal
Make Model Name	Small Transport, Low Wing, 2 Recip Eng
Flight Phase	landing other
Flight Plan	None
Person 1
Affiliation	Other
Function	flight crew : single pilot
Qualification	pilot : private
Experience	flight time last 90 days : 40 flight time total : 730 flight time type : 400
ASRS Report	100365
Events
Anomaly	aircraft equipment problem : critical other anomaly other
Independent Detector	other flight crewa
Resolutory Action	none taken : unable
Consequence	other
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

On downwind for landing on runway 19 I put down 15 degrees of flaps and the gear handle. I thought I saw the green light, but the sun was shining into the cockpit creating a glare on the panel making the panel lights difficult to see. Thinking the gear was down I continued to fly the approach and the fact that the gear was not down was not noticed until the propellers of the aircraft struck the ground. The airplane was landing with full flaps. The main damage to the aircraft was the propellers and flaps with very little damage to the underside of the aircraft. It is my belief that something in the electrical system failed. There were no factors involved that would effect human performance.

Original NASA ASRS Text

Title: GEAR UP LNDG DUE TO ELECTRICAL SYSTEM MALFUNCTION.

Narrative: ON DOWNWIND FOR LNDG ON RWY 19 I PUT DOWN 15 DEGS OF FLAPS AND THE GEAR HANDLE. I THOUGHT I SAW THE GREEN LIGHT, BUT THE SUN WAS SHINING INTO THE COCKPIT CREATING A GLARE ON THE PANEL MAKING THE PANEL LIGHTS DIFFICULT TO SEE. THINKING THE GEAR WAS DOWN I CONTINUED TO FLY THE APCH AND THE FACT THAT THE GEAR WAS NOT DOWN WAS NOT NOTICED UNTIL THE PROPS OF THE ACFT STRUCK THE GND. THE AIRPLANE WAS LNDG WITH FULL FLAPS. THE MAIN DAMAGE TO THE ACFT WAS THE PROPS AND FLAPS WITH VERY LITTLE DAMAGE TO THE UNDERSIDE OF THE ACFT. IT IS MY BELIEF THAT SOMETHING IN THE ELECTRICAL SYS FAILED. THERE WERE NO FACTORS INVOLVED THAT WOULD EFFECT HUMAN PERFORMANCE.

Data retrieved from NASA's ASRS site as of August 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.