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B737 captain reported the dsnee 1 arrival into sna with a 4;000 ft descent over 11.3 NM is not well designed.
| Attributes | |
| ACN | 1441373 |
| Time | |
| Date | 201704 |
| Local Time Of Day | 0601-1200 |
| Place | |
| Locale Reference | SNA.Airport |
| State Reference | CA |
| Aircraft 1 | |
| Make Model Name | B737-800 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | Descent |
| Route In Use | STAR DSNEE 1 |
| Flight Plan | IFR |
| Person 1 | |
| Function | Pilot Not Flying Captain |
| Qualification | Flight Crew Air Transport Pilot (ATP) |
| Events | |
| Anomaly | ATC Issue All Types Deviation - Altitude Crossing Restriction Not Met Deviation - Procedural Clearance |
Narrative:
This RNAV arrival has a descent from roade intersection between FL190 and 17000 ft to phiya intersection which had a restriction at or below 13000. 11.3 miles between fixes. Even if roade is selected as a hard 17000 foot altitude; you can't make it to phiya at 13000 feet. If ATC slows you down; problem is worse. Who designs these things; anyway? Certainly not someone who flies a 737. Told ATC unable to descend via. Gave alternative instructions. Told us they've also reported this arrival as unsatisfactory; no fix.
Original NASA ASRS Text
Title: B737 Captain reported the DSNEE 1 Arrival into SNA with a 4;000 ft descent over 11.3 NM is not well designed.
Narrative: This RNAV arrival has a descent from ROADE intersection between FL190 and 17000 ft to PHIYA intersection which had a restriction at or below 13000. 11.3 miles between fixes. Even if ROADE is selected as a hard 17000 foot altitude; you can't make it to PHIYA at 13000 feet. If ATC slows you down; problem is worse. Who designs these things; anyway? Certainly not someone who flies a 737. Told ATC unable to descend via. Gave alternative instructions. Told us they've also reported this arrival as unsatisfactory; no fix.
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.