Commercial Fixed Wing
Flight Crew Instrument; Flight Crew Air Transport Pilot (ATP); Flight Crew Multiengine
Flight Crew Last 90 Days 118; Flight Crew Total 17896; Flight Crew Type 118
Situational Awareness; Distraction; Human-Machine Interface
Deviation - Altitude Overshoot; Deviation / Discrepancy - Procedural Clearance
Air Traffic Control Issued Advisory / Alert; Flight Crew Returned To Clearance
Aircraft; Environment - Non Weather Related; Human Factors
Hand flying on climbout when ATC asks us about icing and temperature. We respond with light rime and the SAT. This happened just before reaching FL210. I looked down at EICAS for temperature and in the process climbed through FL210 by 400 feet; but immediately corrected. ATC did call us on it but we were back at FL210. At no time was there any traffic conflict or separation issue. Being new to the airplane; I was hand flying to get a better feel for the airplane. Might be worth mentioning that plane was light and was climbing like a rocket ship but previous to this event; we had complied with correctly with all other altitude assignments.
Air carrier Captain reported an altitude deviation during climbout.