Flight Crew Air Transport Pilot (ATP); Flight Crew Flight Instructor; Flight Crew Instrument; Flight Crew Multiengine
Flight Crew Last 90 Days 92; Flight Crew Total 35447; Flight Crew Type 4300
Confusion; Distraction; Time Pressure
Aircraft Equipment Problem Less Severe; Deviation / Discrepancy - Procedural FAR; Deviation / Discrepancy - Procedural Published Material / Policy; Deviation / Discrepancy - Procedural Maintenance
General None Reported / Taken
Logbook Entry; Human Factors; Environment - Non Weather Related; Company Policy; Procedure
Flight started out of ZZZ1 with an extended duty period that included X days 'on the road' (unknown to the crew at the time).  I did not verify the aircraft records to see when the next maintenance inspection was due.I usually always look at the aircraft book to see this information.  I did 'open' the aircraft book to retrieve the aircraft keys but did not check the numbers.  We usually have our aircraft books in the office and was my practice to look at all the numbers in the office.  During the COVID crisis it became our policy to keep the office locked up with no personnel so the books were now kept in the airplane.  Without Checking the numbers I flew .4 past the required inspection.
Pilot reported flying an aircraft without the proper documentation and correct maintenance records.