Bonanza 33
Flight Crew Private
Flight Crew Last 90 Days 25; Flight Crew Total 1073; Flight Crew Type 365
Human-Machine Interface; Situational Awareness
Aircraft Equipment Problem Critical; Conflict Airborne Conflict; Deviation / Discrepancy - Procedural Published Material / Policy; Ground Event / Encounter Gear Up Landing
Aircraft Aircraft Damaged; General Flight Cancelled / Delayed; General Maintenance Action
Aircraft; Human Factors; Procedure
I was approaching the ZZZ airport for landing on Runway XX and observing other arriving traffic. I entered the traffic pattern and started my prelanding checklist. I observed another aircraft ahead of me making a nonstandard approach. I adjusted my approach to sequence behind the other aircraft and ran the prelanding checklist a second time. On final; I was sure the gear was down and indicated by three lights; but perhaps the other aircraft's close proximity caused me to overlook the gear handle not being fully locked in the down position and the lights on. Also; the gear warning horn was not heard.To eliminate the possibility of this happening again; a go-around and better sequencing along with maintenance to double-check gear indicators will be practiced in the future.
Bonanza 33 pilot reported the landing gear collapsed on landing.