Commercial Fixed Wing
Flight Crew Multiengine; Flight Crew Instrument; Flight Crew Air Transport Pilot (ATP)
Flight Crew Last 90 Days 60
Situational Awareness; Training / Qualification; Distraction; Time Pressure
Deviation - Speed All Types; Deviation / Discrepancy - Procedural FAR; Deviation / Discrepancy - Procedural Published Material / Policy
Flight Crew Returned To Clearance; Flight Crew Became Reoriented
Human Factors; Environment - Non Weather Related
Day 1; leg 1 of a 4 day trip from ZZZ to ZZZ1. I was the pilot monitoring on this leg. Had not flown much in the last few weeks. Captain was PF. We flew to ZZZ1 at a pretty low altitude; I believe it was 14;000 feet cruise altitude. After starting the descent; we did not realize we had passed 10;000 feet so quickly; and noticed our speed was beyond 250 knots. The Captain immediately slowed the descent rate and airspeed; in order to return to 250 knots.We were distracted. We were on the first leg of the trip; had woken up pretty early; and the fact that we cruised at such a low altitude were possibly all factors. We did not pay enough attention in the descent.I should have kept better monitoring skills during the descent and avoided distractions.
Air Carrier First Officer reported a speed deviation below 10;000 feet during descent.