Experimental aircraft pilot reported that that a hydraulic system malfunction resulted in a gear-up ...

Attributes
ACN	1720475
Time
Date	202001
Local Time Of Day	1201-1800
Place
Locale Reference	ZZZ.Airport
State Reference	US
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Make Model Name	Amateur/Home Built/Experimental
Operating Under FAR Part	Part 91
Flight Phase	Landing
Route In Use	Visual Approach
Flight Plan	VFR
Component
Aircraft Component	Indicating and Warning - Landing Gear
Person 1
Function	Single Pilot
Qualification	Flight Crew Private Flight Crew Instrument Flight Crew Multiengine
Experience	Flight Crew Last 90 Days 60 Flight Crew Total 4500 Flight Crew Type 300
Events
Anomaly	Aircraft Equipment Problem Critical Ground Event / Encounter Gear Up Landing

Narrative:

Upon base in an approach to land at ZZZ; I reduced airspeed to gear speed; lowered the gear; and set the flaps. I heard the hydraulic pump engage and the airplanes performance and sounds appeared the gear system was in motion. I believed that I had a gear down condition. Upon short final I set the flaps to full and subsequently landed with gear up. Upon investigation after landing the gear switch was noted in the down position. Hydraulic fluid was present on the runway and the aircraft wheel well area. Apparent hydraulic leaks and pump failure was the reason for the gear not to extend properly. The factors involving the incident were no gear warning light or horn. The time of day was near sunset and light and glare in the cockpit as well as the location of the gear up lights were hard to detect. My failure was not verifying the gear down condition via the gear condition light system.

Original NASA ASRS Text

Title: Experimental aircraft pilot reported that that a hydraulic system malfunction resulted in a gear-up landing.

Narrative: Upon base in an approach to land at ZZZ; I reduced airspeed to gear speed; lowered the gear; and set the flaps. I heard the hydraulic pump engage and the airplanes performance and sounds appeared the gear system was in motion. I believed that I had a gear down condition. Upon short final I set the flaps to full and subsequently landed with gear up. Upon investigation after landing the gear switch was noted in the down position. Hydraulic fluid was present on the runway and the aircraft wheel well area. Apparent hydraulic leaks and pump failure was the reason for the gear not to extend properly. The factors involving the incident were no gear warning light or horn. The time of day was near sunset and light and glare in the cockpit as well as the location of the gear up lights were hard to detect. My failure was not verifying the gear down condition via the gear condition light system.

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.