B737 Next Generation Undifferentiated
Flight Crew Air Transport Pilot (ATP)
Human-Machine Interface; Situational Awareness; Workload
Deviation / Discrepancy - Procedural Published Material / Policy
Air Traffic Control Provided Assistance; Flight Crew FLC complied w / Automation / Advisory; Flight Crew Requested ATC Assistance / Clarification
Environment - Non Weather Related; Procedure; Chart Or Publication; Company Policy; Airspace Structure
We used the DSNEE 1 arrival into SNA for the first time on this date. The aircraft used was a B737. Several issues were noted.  1. After the DSNEE 1 arrival was programmed into the FMC; it warned of 'steep descent after ROADE'. After passing BRCKK waypoint; nose pitched down significantly to maintain VNAV path. Use of full speed brake was necessary to maintain the 280 knot restriction. After passing ROADE waypoint; nose pitched down even further; and the path indicator showed us 900 plus feet above the VNAV path. Full speed brake use continued. After passing PHIYA waypoint; airspeed immediately slowed to 220 knots in preparation for the DSNEE waypoint restriction 220 knots at 8000 feet; but we were still 23 miles from DSNEE. We informed SoCal approach that the aircraft was slowing; and we asked her if this would cause a problem. She responded that we should just fly the arrival as published and that he would file a [safety] report and requested that we file a report. We responded that we would file a report about the issues encountered with the DSNEE 1 star. This report is for informational purposes only; as we exceeded no limits during the arrival.
B737 First Officer reported several unusual maneuvers the FMC commanded to comply with restrictions for the SNA DSNEE1 Arrival.