Reporter cites gear collapse after green lights go out on approach and tower confirms three wheels.

Attributes
ACN	167628
Time
Date	199101
Day	Sat
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : sdf
State Reference	KY
Altitude	agl bound lower : 0 agl bound upper : 0
Environment
Flight Conditions	Marginal
Light	Daylight
Aircraft 1
Operator	general aviation : personal
Make Model Name	Small Transport, Low Wing, 2 Turboprop Eng
Flight Phase	descent : approach landing other
Flight Plan	IFR
Person 1
Affiliation	Other
Function	flight crew : single pilot
Qualification	pilot : atp pilot : cfi
Experience	flight time last 90 days : 240 flight time total : 2450 flight time type : 90
ASRS Report	167628
Person 2
Affiliation	government : faa
Function	controller : local
Qualification	controller : non radar
Events
Anomaly	aircraft equipment problem : critical other anomaly other
Independent Detector	other flight crewa
Resolutory Action	none taken : insufficient time
Consequence	other
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

After breaking out of the clouds at approximately 400' AGL and 1/2 mi from the runway I noticed my 3 green lights for my landing gear had gone out. I rechked the gear handle position, the cbs, and looked outside for visibility reference. The tower confirmed there were 3 wheels down. The gear warning horn did not sound with the power in the idle position so I decided to land. Upon landing the gear collapsed and I slid safely to a stop next to the runway with little damage to the aircraft.

Original NASA ASRS Text

Title: REPORTER CITES GEAR COLLAPSE AFTER GREEN LIGHTS GO OUT ON APCH AND TWR CONFIRMS THREE WHEELS.

Narrative: AFTER BREAKING OUT OF THE CLOUDS AT APPROX 400' AGL AND 1/2 MI FROM THE RWY I NOTICED MY 3 GREEN LIGHTS FOR MY LNDG GEAR HAD GONE OUT. I RECHKED THE GEAR HANDLE POS, THE CBS, AND LOOKED OUTSIDE FOR VIS REFERENCE. THE TWR CONFIRMED THERE WERE 3 WHEELS DOWN. THE GEAR WARNING HORN DID NOT SOUND WITH THE PWR IN THE IDLE POS SO I DECIDED TO LAND. UPON LNDG THE GEAR COLLAPSED AND I SLID SAFELY TO A STOP NEXT TO THE RWY WITH LITTLE DAMAGE TO THE ACFT.

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.