Baron 58/58TC
Flight Crew Air Transport Pilot (ATP); Flight Crew Flight Instructor; Flight Crew Instrument; Flight Crew Multiengine
Flight Crew Last 90 Days 156; Flight Crew Total 21000; Flight Crew Type 1500
Workload; Troubleshooting
Aircraft Equipment Problem Critical
Aircraft Aircraft Damaged
Aircraft
This was the first flight after annual inspection of the aircraft. Upon takeoff the gear would not retract. The gear indication was unsafe. I noticed that the landing gear motor breaker had popped out. I reset the circuit breaker only to have it pop out again. On the third attempt; the breaker stayed in and the gear retracted. We continued on to take on fuel and to have a longer runway in case we encountered any other problems. I put the gear down early and flew the pattern with the gear down. The gear lights were checked multiple times with all times showing three green lights. After landing and during roll out at approximately 45 kts.; the left main landing gear appeared to collapse followed by the nose gear. As we were sliding toward the left side of the runway; I closed the mixture levers. As soon as we stopped; I turned the master switch off and we quickly exited the aircraft.
Baron pilot reported a gear collapse on landing.