Incident Overview
During a visual approach to Boeing Field runway 31L, a pilot inadvertently landed an airplane with the landing gear retracted. The pilot reported that while slowing to gear extension speed, he believed he had extended the landing gear but had actually actuated the flaps.
Sequence of Events
According to the pilot's account, Seattle approach assigned a visual approach into Boeing Field runway 31L and sequenced the airplane between a Lear and a Citation, with an instruction to maintain 160 knots until DUANE intersection. During the approach, the pilot was handed off to Boeing Tower and cleared for the visual approach. As the pilot approached the runway, he slowed to gear extension speed. He later stated, "I thought I had extended my gear (I had actually actuated my flaps)." Shortly thereafter, the airplane landed on runway 31L with the landing gear retracted.
Pilot Report
The pilot reported that there were no mechanical malfunctions or failures with the airplane that may have contributed to the accident.