Commercial Fixed Wing
Flight Crew Air Transport Pilot (ATP); Flight Crew Instrument; Flight Crew Multiengine
Distraction; Situational Awareness
Deviation - Speed All Types; Deviation / Discrepancy - Procedural Published Material / Policy
Flight Crew Overrode Automation
Environment - Non Weather Related; Human Factors
On descent into ZZZ; we momentarily exceeded Vmo by approximately 1 knot for less than 3 seconds. I later completed an AML entry and notified Maintenance Control. There was no operational impact.   I was the CA and PF. While on descent into ZZZ; ATC halted our descent at FL240. This put us behind our VPATH solution. When we were next cleared to descend; I elected to go into Vertical Speed Mode; selecting 2000 FPM in order to recapture the VPATH. The task saturation over the next few seconds took my scan away from our airspeed; and we surpassed and we surpassed XXX knots; our 'barber pole' airspeed. I immediately disconnected the AP; overrode the autothrottles and raised the nose of the aircraft. The max airspeed reached [was] XXY knots for a second or two; before returning to green numbers. There appeared to be no adverse effect on the aircraft or passengers. I later completed an AML entry and notified Maintenance Control. I had not flown in 3 weeks; due to my inactivity on reserve status. I now know that I must be more diligent on my scan; especially when I have not flown in a while. On descent; I must be more cognizant of airspeed when using the VS mode. In this case; using Green FLCH would have been a better choice. It was an excellent learning opportunity.
Air carrier Captain reported momentarily exceeding the aircraft's maximum operating limit speed on descent. The Captain cited lack of flying as a contributing factor.