Aircraft on test flight lands gear up.

Attributes
ACN	168057
Time
Date	199101
Day	Wed
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : dto
State Reference	TX
Altitude	agl bound lower : 0 agl bound upper : 0
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tracon : dfw
Operator	general aviation : personal
Make Model Name	Small Aircraft, Low Wing, 1 Eng, Retractable Gear
Flight Phase	landing other
Flight Plan	None
Person 1
Affiliation	Other
Function	flight crew : single pilot
Qualification	pilot : private
ASRS Report	168057
Person 2
Affiliation	Other
Function	other personnel other
Qualification	other other : other
ASRS Report	168056
Events
Anomaly	other anomaly other
Independent Detector	other flight crewa
Resolutory Action	none taken : detected after the fact
Consequence	other
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

The aircraft was landed gear up with the gear switch in the down position, 3 green lights, no horn. I had never flown this aircraft before. It is possible the angle of the sun on the green lights and a distraction at the last min of an aircraft that pulled onto the runway contributed to not realizing the green lights were not operating correctly if, in fact, they weren't. I landed on the centerline. The was no injury to myself or my mechanic. The aircraft damage was limited to propeller, belly skin, and tip of flap.

Original NASA ASRS Text

Title: ACFT ON TEST FLT LANDS GEAR UP.

Narrative: THE ACFT WAS LANDED GEAR UP WITH THE GEAR SWITCH IN THE DOWN POS, 3 GREEN LIGHTS, NO HORN. I HAD NEVER FLOWN THIS ACFT BEFORE. IT IS POSSIBLE THE ANGLE OF THE SUN ON THE GREEN LIGHTS AND A DISTR AT THE LAST MIN OF AN ACFT THAT PULLED ONTO THE RWY CONTRIBUTED TO NOT REALIZING THE GREEN LIGHTS WERE NOT OPERATING CORRECTLY IF, IN FACT, THEY WEREN'T. I LANDED ON THE CTRLINE. THE WAS NO INJURY TO MYSELF OR MY MECH. THE ACFT DAMAGE WAS LIMITED TO PROP, BELLY SKIN, AND TIP OF FLAP.

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.