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Flight crew of a cpr jet turned early onto the final approach course causing penetration of other airspace not assigned.
| Attributes | |
| ACN | 308422 |
| Time | |
| Date | 199506 |
| Day | Tue |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | airport : smo |
| State Reference | CA |
| Altitude | msl bound lower : 5000 msl bound upper : 5000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tracon : lax |
| Operator | general aviation : corporate |
| Make Model Name | Any Unknown or Unlisted Aircraft Manufacturer |
| Operating Under FAR Part | other : unknown |
| Navigation In Use | Other Other |
| Flight Phase | descent : approach descent other |
| Route In Use | arrival other arrival star : star |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | Other |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp pilot : cfi |
| Experience | flight time last 90 days : 75 flight time total : 14000 flight time type : 2500 |
| ASRS Report | 308422 |
| Person 2 | |
| Affiliation | Other |
| Function | flight crew : first officer |
| Qualification | pilot : commercial pilot : instrument |
| Events | |
| Anomaly | non adherence : published procedure other anomaly other other anomaly other other spatial deviation |
| Independent Detector | other controllera |
| Resolutory Action | other |
| Consequence | faa : reviewed incident with flight crew |
| Supplementary | |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | Pilot Deviation |
Narrative:
Corp jet flight from sfo to smo. Fernando 5 arrival at smo with avenal transition. I was letting the FMS and autoplt fly the arrival. Cleared to smo. Fernando 5 says to expect VOR-a approach at darts. Darts is also the first fix on the VOR-a approach. The turn from darts to the final approach course is more than 90 degrees (117 degrees to be exact). Socal approach had not issued an approach clearance. As usual the radios were very busy. The FMS started the turn from darts to final approach approximately 2 mi prior to darts. The FMS is designed to do this so that the aircraft will not overshoot the new course. The controller called about 1/2 way through the turn and asked what we were doing. We responded that we were proceeding to the smo airport. The controller asked that we call by phone when on the ground. I complied and was told by a very courteous person at socal approach that we had intruded into another controller's airspace by starting the turn early and advised that we not let the FMS fly the airplane in los angeles basin. I intend to be very careful of this in the future but believe the aim directs pilots to start turns early in these sits to avoid overshooting the new course. (Aim en route procedures paragraph 5-34.)
Original NASA ASRS Text
Title: FLC OF A CPR JET TURNED EARLY ONTO THE FINAL APCH COURSE CAUSING PENETRATION OF OTHER AIRSPACE NOT ASSIGNED.
Narrative: CORP JET FLT FROM SFO TO SMO. FERNANDO 5 ARR AT SMO WITH AVENAL TRANSITION. I WAS LETTING THE FMS AND AUTOPLT FLY THE ARR. CLRED TO SMO. FERNANDO 5 SAYS TO EXPECT VOR-A APCH AT DARTS. DARTS IS ALSO THE FIRST FIX ON THE VOR-A APCH. THE TURN FROM DARTS TO THE FINAL APCH COURSE IS MORE THAN 90 DEGS (117 DEGS TO BE EXACT). SOCAL APCH HAD NOT ISSUED AN APCH CLRNC. AS USUAL THE RADIOS WERE VERY BUSY. THE FMS STARTED THE TURN FROM DARTS TO FINAL APCH APPROX 2 MI PRIOR TO DARTS. THE FMS IS DESIGNED TO DO THIS SO THAT THE ACFT WILL NOT OVERSHOOT THE NEW COURSE. THE CTLR CALLED ABOUT 1/2 WAY THROUGH THE TURN AND ASKED WHAT WE WERE DOING. WE RESPONDED THAT WE WERE PROCEEDING TO THE SMO ARPT. THE CTLR ASKED THAT WE CALL BY PHONE WHEN ON THE GND. I COMPLIED AND WAS TOLD BY A VERY COURTEOUS PERSON AT SOCAL APCH THAT WE HAD INTRUDED INTO ANOTHER CTLR'S AIRSPACE BY STARTING THE TURN EARLY AND ADVISED THAT WE NOT LET THE FMS FLY THE AIRPLANE IN LOS ANGELES BASIN. I INTEND TO BE VERY CAREFUL OF THIS IN THE FUTURE BUT BELIEVE THE AIM DIRECTS PLTS TO START TURNS EARLY IN THESE SITS TO AVOID OVERSHOOTING THE NEW COURSE. (AIM ENRTE PROCS PARAGRAPH 5-34.)
Data retrieved from NASA's ASRS site as of July 2007 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.