Pilot reported being advised of a possible overflight of a required maintenance inspection.

Attributes
ACN	1761269
Time
Date	202009
Local Time Of Day	0601-1200
Place
Locale Reference	ZZZ.Airport
State Reference	US
Environment
Flight Conditions	VMC
Light	Dawn
Aircraft 1
Make Model Name	Small Transport Low Wing 2 Turboprop Eng
Operating Under FAR Part	Part 135
Flight Phase	Parked Takeoff
Flight Plan	IFR
Person 1
Function	Pilot Flying Single Pilot
Qualification	Flight Crew Multiengine Flight Crew Air Transport Pilot (ATP) Flight Crew Instrument
Experience	Flight Crew Last 90 Days 90 Flight Crew Total 7100 Flight Crew Type 510
Events
Anomaly	Deviation - Procedural FAR Deviation - Procedural Maintenance Deviation - Procedural Published Material / Policy

Narrative:

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.

Original NASA ASRS Text

Title: Pilot reported being advised of a possible overflight of a required maintenance inspection.

Narrative: 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.

Data retrieved from NASA's ASRS site and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.