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Air carrier captain reported his aircraft had difficulty tracking the orcka 3 SID out of lax and questioned the design of the procedure.
| Attributes | |
| ACN | 1547608 |
| Time | |
| Date | 201806 |
| Local Time Of Day | 1801-2400 |
| Place | |
| Locale Reference | LAX.Airport |
| State Reference | CA |
| Environment | |
| Flight Conditions | VMC |
| Aircraft 1 | |
| Make Model Name | Medium Transport |
| Operating Under FAR Part | Part 121 |
| Flight Phase | Climb |
| Route In Use | SID ORCKA 3 RNAV |
| Flight Plan | IFR |
| Person 1 | |
| Function | Captain Pilot Not Flying |
| Qualification | Flight Crew Air Transport Pilot (ATP) Flight Crew Instrument Flight Crew Multiengine |
| Events | |
| Anomaly | Deviation - Procedural Clearance Deviation - Procedural Published Material / Policy Deviation - Track / Heading All Types |
Narrative:
The new lax orcka 3 RNAV departure is problematic with the current aircraft FMS programming. After initial climbout; socal gave us direct klipr which was almost 180 degree left turn and put us on a 90 degree intercept to the outbound course. Since we were well above the 10;000 foot klipr altitude restriction; the aircraft had already accelerated to climb speed of 355 KIAS. The FMS did not compute a lead turn for the outbound track. The first officer made as tight a turn as he could but with that setup we ended up almost 3 miles left of track while completing the turn.new lax departure procedure that may not be properly designed. FMS not computing a lead turn at the first out bound point klipr.FMS programming should be changed so that it computes a lead turn at the first outbound point klipr; if possible. Consider having a speed restriction at klipr; or until established on outbound course.
Original NASA ASRS Text
Title: Air carrier Captain reported his aircraft had difficulty tracking the ORCKA 3 SID out of LAX and questioned the design of the procedure.
Narrative: The new LAX ORCKA 3 RNAV departure is problematic with the current aircraft FMS programming. After initial climbout; SoCal gave us direct KLIPR which was almost 180 degree left turn and put us on a 90 degree intercept to the outbound course. Since we were well above the 10;000 foot KLIPR altitude restriction; the aircraft had already accelerated to climb speed of 355 KIAS. The FMS did not compute a lead turn for the outbound track. The First Officer made as tight a turn as he could but with that setup we ended up almost 3 miles left of track while completing the turn.New LAX departure procedure that may not be properly designed. FMS not computing a lead turn at the first out bound point KLIPR.FMS programming should be changed so that it computes a lead turn at the first outbound point KLIPR; if possible. Consider having a speed restriction at KLIPR; or until established on outbound course.
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.