Crj-900 first officer reported missing an altitude restriction due to a late runway change.

Attributes
ACN	1579612
Time
Date	201809
Local Time Of Day	0601-1200
Place
Locale Reference	DTW.Airport
State Reference	MI
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Make Model Name	Regional Jet 900 (CRJ900)
Operating Under FAR Part	Part 121
Flight Phase	Descent
Flight Plan	IFR
Person 1
Function	First Officer Pilot Not Flying
Qualification	Flight Crew Multiengine Flight Crew Air Transport Pilot (ATP) Flight Crew Instrument
Events
Anomaly	Deviation - Altitude Crossing Restriction Not Met Deviation - Altitude Overshoot Deviation - Procedural Clearance

Narrative:

I was PNF (pilot not flying). Descending into dtw via the kkiss arrival; approaching rkcty fix. Originally planned for ILS Y 4L transition; ATC changed runways to 3R. In the midst of reprogramming FMS to 3R transition and approach; ATC asked us to confirm we were descending via; we did and then realized we descended too low (14;000) and am going to miss the rkcty window of 17;000 - FL210. ATC then instructed us to maintain 14;000 until crossing rkcty then continue the arrival. We complied with the instruction and the flight continued and completed successfully without further incident.changing of planned runways/approaches combined with a brand new and unfamiliar STAR.

Original NASA ASRS Text

Title: CRJ-900 First Officer reported missing an altitude restriction due to a late runway change.

Narrative: I was PNF (Pilot Not Flying). Descending into DTW VIA the KKISS arrival; approaching RKCTY fix. Originally planned for ILS Y 4L transition; ATC changed runways to 3R. In the midst of reprogramming FMS to 3R transition and approach; ATC asked us to confirm we were descending via; we did and then realized we descended too low (14;000) and am going to miss the RKCTY window of 17;000 - FL210. ATC then instructed us to maintain 14;000 until crossing RKCTY then continue the arrival. We complied with the instruction and the flight continued and completed successfully without further incident.Changing of planned runways/approaches combined with a brand new and unfamiliar STAR.

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.