B737NG first officer reported track and altitude deviations occurred on arrival into den when the FM...

Attributes
ACN	1646768
Time
Date	201905
Local Time Of Day	1801-2400
Place
Locale Reference	DEN.Airport
State Reference	CO
Environment
Flight Conditions	VMC
Aircraft 1
Make Model Name	B737 Next Generation Undifferentiated
Operating Under FAR Part	Part 121
Flight Phase	Final Approach
Route In Use	STAR ZPLYN
Flight Plan	IFR
Person 1
Function	First Officer Pilot Not Flying
Qualification	Flight Crew Instrument Flight Crew Multiengine Flight Crew Air Transport Pilot (ATP)
Experience	Flight Crew Last 90 Days 132 Flight Crew Type 794
Events
Anomaly	Deviation - Altitude Excursion From Assigned Altitude Deviation - Altitude Undershoot Deviation - Procedural Clearance Deviation - Procedural Published Material / Policy Deviation - Track / Heading All Types

Narrative:

On decent into denver we were on the bosss arrival; however den was landing south. We anticipated that we would be given a different arrival. Den center informed us of a change to the zplyn arrival. We briefed the zplyn arrival and the ILS to 17R. [The captain] put the new arrival and approach into the FMC. We verified it. There were reports of moderate precipitation and icing on the arrival; but we didn't experience any deviations or icing. Upon contacting approach; they informed us we were to expect the rnp Z to 17R. We had mentioned it being a possibility since it linked up to the arrival. [The captain] put into the FMC; and I verified the approach. However; I failed to realize (and didn't fully verify) that part of the ILS was still in the box creating a discontinuity. [The captain] briefed the rnp; and we set up for rnp Z; and were cleared for the approach. At qwike; the airplane didn't initiate the approach. At staam when the aircraft didn't initiate the turn and we were not in a descent; [the captain] started to initiate the turn and descent. At that time; ATC queried us if we were going to make the altitude. We informed ATC that we were not. ATC gave us a vector to the north and a subsequent visual approach to 16L. We briefed the approach for 16L and landed without further incident.

Original NASA ASRS Text

Title: B737NG First Officer reported track and altitude deviations occurred on arrival into DEN when the FMC was mis-programmed following a late clearance change.

Narrative: On Decent into Denver we were on the BOSSS arrival; however DEN was landing south. We anticipated that we would be given a different arrival. DEN Center informed us of a change to the ZPLYN arrival. We briefed the ZPLYN arrival and the ILS to 17R. [The Captain] put the new arrival and approach into the FMC. We verified it. There were reports of moderate precipitation and icing on the arrival; but we didn't experience any deviations or icing. Upon contacting approach; they informed us we were to expect the RNP Z to 17R. We had mentioned it being a possibility since it linked up to the arrival. [The Captain] put into the FMC; and I verified the approach. However; I failed to realize (and didn't fully verify) that part of the ILS was still in the box creating a discontinuity. [The Captain] briefed the RNP; and we set up for RNP Z; and were cleared for the approach. At QWIKE; the airplane didn't initiate the approach. At STAAM when the aircraft didn't initiate the turn and we were not in a descent; [the Captain] started to initiate the turn and descent. At that time; ATC queried us if we were going to make the altitude. We informed ATC that we were not. ATC gave us a vector to the north and a subsequent visual approach to 16L. We briefed the approach for 16L and landed without further incident.

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.

B737NG first officer reported track and altitude deviations occurred on arrival into den when the FMC was mis-programmed following a late clearance change.