B737 Undifferentiated or Other Model
Flight Crew Air Transport Pilot (ATP); Flight Crew Multiengine; Flight Crew Instrument
Flight Crew Last 90 Days 240; Flight Crew Type 12500
Workload; Distraction; Situational Awareness
Deviation - Altitude Crossing Restriction Not Met; Deviation / Discrepancy - Procedural Clearance
Flight Crew Returned To Clearance; Flight Crew Became Reoriented
Human Factors; Procedure
As we were flying through Kansas City's airspace we were using the CPDLC (Controller Pilot Datalink Communications). We were flying the JHAWK 6 Arrival into MCI. The airport was landing south so we briefed and setup to cross RUGBB at 12;000 feet. for the airport landing south. ATC sent us a message on the ACARS CPDLC to cross JHAWK at 12;000 feet. We acknowledged the clearance and with all the other CPDLC messages we were receiving we missed changing the altitude restriction over RUGBB to crossing 12;000 feet. over JHAWK. After crossing JHAWK I realized the mistake and continued our descent to 12;000 feet without any other conflicts.This was a valuable lesson learned. I need to verify my clearance and fly the aircraft first. It was a little overwhelming with all of the ATC messages we were receiving on the CPDLC.
ATC was controlling using CPDLC (Controller Pilot Datalink Communications). We had been receiving one CPDLC message every five to ten seconds for over a minute. Captain was PF (Pilot Flying) and also answering all CPDLC messages. As PM (Pilot Monitoring); it was difficult to read all messages and keep up with PF as he zipped through the messages trying to comply. On the JHAWK it says landing south expect RUGBB at 12;000 feet and this is how the FMC was set up. After passing JHAWK; we noticed the message said cross JHAWK at 12;000 feet (which is the clearance landing north; but MCI was landing south. We complied with SID and crossed RUGBB at 12;000 feet. But; we did not comply with the CPDLC instruction to cross JHAWK at 12;000 feet. Looking back; there is no way we could have crossed JHAWK at 12;000 feet regardless. ATC never said a word to us about any of this.
B737 flight crew reported missing an altitude restriction on descent into MCI; citing the high volume of CPDLC messages as contributing.