PA-23-250 Aztec
Flight Crew Instrument; Flight Crew Multiengine; Flight Crew Commercial
Flight Crew Last 90 Days 14.7; Flight Crew Total 778.7; Flight Crew Type 140.2
Other / Unknown
Aircraft Equipment Problem Critical; Deviation / Discrepancy - Procedural FAR
Aircraft Aircraft Damaged
Aircraft; Human Factors
Upon landing the left gear failed (broke) and gear folded backwards into the wing and flap. Upon checking the aircraft logs; I found the Pitot/Static system was out of date by approximately 1 year.
PA23 pilot reports a left main landing gear failure after touch down causing damage to the wing and flap.  It was later discovered that the pitot static system check was a year out of date.