Small Transport; Low Wing; 2 Turboprop Eng
Flight Crew Multiengine; Flight Crew Air Transport Pilot (ATP); Flight Crew Instrument
Flight Crew Last 90 Days 90; Flight Crew Total 7100; Flight Crew Type 510
Distraction
Deviation / Discrepancy - Procedural FAR; Deviation / Discrepancy - Procedural Maintenance; Deviation / Discrepancy - Procedural Published Material / Policy
General None Reported / Taken
Company Policy; Environment - Non Weather Related; Human Factors; Procedure
On return to base after successful completion of mission; was advised of a possible overflight of a required maintenance inspection.  Due to operations tempo (COVID-19) and a last minute change of aircraft request by the crew; there was an inadvertent oversight of the available flight time on this aircraft. Aircraft was approaching a 150 hour inspection on a progressive maintenance plan.  High utilization (due to COVID-19 transports; among other factors) ran successive inspections very close together.  I was acutely aware of a 50 hour inspection completed 48 hrs before completion of this flight.  I was under the impression that the subsequent inspection was several hours away; but I neglected to check the time remaining in the maintenance logbook simply because I got in a hurry.  Compounding the confusion was a lack of timely updates which provide a second check on maintenance due actions.  On arrival back at the base and calculation of flight times accumulated on my night shift; I determined that it is probable that I overflew this required inspection.  In summary; I got rushed by a last minute change of aircraft and the press of mission accomplishment and neglected to calculate the time remaining on the aircraft.
Pilot reported  being advised of a possible overflight of a required maintenance inspection.