B737 first officer reported an altitude deviation due to a waypoint altitude setting in the FMS that...

Attributes
ACN	1716661
Time
Date	202001
Local Time Of Day	1801-2400
Place
Locale Reference	ZZZ.Airport
State Reference	US
Environment
Flight Conditions	Mixed
Light	Night
Aircraft 1
Make Model Name	B737-700
Operating Under FAR Part	Part 121
Flight Phase	Descent
Route In Use	Direct
Flight Plan	IFR
Component
Aircraft Component	FMS/FMC
Person 1
Function	First Officer Pilot Not Flying
Qualification	Flight Crew Commercial Flight Crew Instrument Flight Crew Multiengine Flight Crew Private
Experience	Flight Crew Last 90 Days 369
Events
Anomaly	Deviation - Altitude Crossing Restriction Not Met Deviation - Altitude Excursion From Assigned Altitude Deviation - Procedural Clearance Deviation - Procedural Published Material / Policy Inflight Event / Encounter Weather / Turbulence

Narrative:

On the ground in ZZZ we had a planned cruise altitude of fl 240; on the zzzzz [arrival] into ZZZ1. When we received our weight and balance calculation it was incomplete due to our cruise altitude of 240; and a crossing restriction on the [arrival] at ZZZZZ1 at or above fl 290. I; [the] first officer (first officer) went back into the flight plan to correct ZZZZZ1 to match our cruise altitude of 240 so we could complete the weight and balance/performance. Once we reached our cruise altitude of 240; we encountered turbulence; so we requested a higher altitude of fl 300. I first officer forgot about what I changed in the box when I was on the ground in ZZZ. We received a clearance to descend via the [arrival]. We as a crew had not yet briefed or reviewed the arrival. What didn't help was encountering a pocket of moderate turbulence; and before I knew it; the PF was trying to capture 240. We realized our mistake and asked ZZZ1 center for lower. ZZZ1 center never gave us a lower altitude; except he argued with me about my turbulence report.

Original NASA ASRS Text

Title: B737 First Officer reported an altitude deviation due to a waypoint altitude setting in the FMS that was never changed.

Narrative: On the ground in ZZZ we had a planned cruise altitude of FL 240; on the ZZZZZ [arrival] into ZZZ1. When we received our Weight and Balance calculation it was incomplete due to our cruise altitude of 240; and a crossing restriction on the [arrival] at ZZZZZ1 at or above FL 290. I; [the] FO (First Officer) went back into the flight plan to correct ZZZZZ1 to match our cruise altitude of 240 so we could complete the weight and balance/performance. Once we reached our cruise altitude of 240; we encountered turbulence; so we requested a higher altitude of FL 300. I FO forgot about what I changed in the box when I was on the ground in ZZZ. We received a clearance to descend via the [arrival]. We as a Crew had not yet briefed or reviewed the arrival. What didn't help was encountering a pocket of moderate turbulence; and before I knew it; the PF was trying to capture 240. We realized our mistake and asked ZZZ1 Center for lower. ZZZ1 Center never gave us a lower altitude; except he argued with me about my turbulence report.

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.

B737 first officer reported an altitude deviation due to a waypoint altitude setting in the FMS that was never changed.