Small Aircraft; Low Wing; 1 Eng; Fixed Gear
Flight Crew Air Transport Pilot (ATP); Flight Crew Flight Engineer
Flight Crew Last 90 Days 8; Flight Crew Total 21711; Flight Crew Type 480
Distraction; Situational Awareness
Aircraft Equipment Problem Less Severe; Deviation / Discrepancy - Procedural Published Material / Policy; Deviation / Discrepancy - Procedural FAR
General Maintenance Action
Human Factors; Environment - Non Weather Related; Aircraft
Due to pilot oversight; my VFR transponder certification went overdue.  The aircraft was not operated within Class B airspace and never entered within the 30 NM veil surrounding any Class B airport.  Additionally; non-towered airports were transited during this period.  The oversight occurred during the Corona virus COVID-19 lock down.  I have instituted a tracking system which will help me to better track future mandatory inspections.
Pilot reported VFR transponder certification went overdue due to COVID-19 lockdown.