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37000 Feet | Browse and search NASA's Aviation Safety Reporting System |
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Air carrier on downwind vector runway 24R ILS given left turn to 060 degrees thought should be 160 degrees. Start right turn and the first officer questioned the turn. Controller issued immediate left turn at the same time had TCASII TA alert. Controller was very busy and overloaded. Replaced about 1 min after the incident.
| Attributes | |
| ACN | 350880 |
| Time | |
| Date | 199610 |
| Day | Thu |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | atc facility : smo airport : lax |
| State Reference | CA |
| Altitude | msl bound lower : 2500 msl bound upper : 2500 |
| Environment | |
| Flight Conditions | VMC |
| Light | Dusk |
| Aircraft 1 | |
| Controlling Facilities | tracon : lax |
| Operator | common carrier : air carrier |
| Make Model Name | Commercial Fixed Wing |
| Operating Under FAR Part | Part 121 |
| Flight Phase | descent : approach |
| Route In Use | enroute : on vectors |
| Flight Plan | IFR |
| Aircraft 2 | |
| Make Model Name | Commercial Fixed Wing |
| Operating Under FAR Part | Part 121 |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : cfi pilot : atp |
| Experience | flight time last 90 days : 150 flight time total : 4500 flight time type : 450 |
| ASRS Report | 350880 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 240 flight time total : 2100 flight time type : 350 |
| ASRS Report | 350133 |
| Events | |
| Anomaly | conflict : airborne less severe non adherence : clearance non adherence : required legal separation non adherence : far |
| Independent Detector | other controllera |
| Resolutory Action | other |
| Consequence | Other |
| Miss Distance | horizontal : 5000 vertical : 1000 |
| Supplementary | |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | Pilot Deviation |
Narrative:
As we were on the right downwind for the runway 24R ILS at lax, approach was vectoring us initially on a 070 degree heading. The frequency was very busy as the controller issued us a 060 degree heading. I understood 160 degrees as this is the normal heading for the base leg. I started the turn to the right. As the first officer questioned my actions the controller gave us an immediate turn to the left. As we were in the left turn we got a TCASII TA. That was the end of the incident. The problem arose with the frequency being so busy we could not question the heading. Also the controller was so busy he seemed frustrated and was replaced about a min after the occurrence.
Original NASA ASRS Text
Title: ACR ON DOWNWIND VECTOR RWY 24R ILS GIVEN L TURN TO 060 DEGS THOUGHT SHOULD BE 160 DEGS. START R TURN AND THE FO QUESTIONED THE TURN. CTLR ISSUED IMMEDIATE L TURN AT THE SAME TIME HAD TCASII TA ALERT. CTLR WAS VERY BUSY AND OVERLOADED. REPLACED ABOUT 1 MIN AFTER THE INCIDENT.
Narrative: AS WE WERE ON THE R DOWNWIND FOR THE RWY 24R ILS AT LAX, APCH WAS VECTORING US INITIALLY ON A 070 DEG HDG. THE FREQ WAS VERY BUSY AS THE CTLR ISSUED US A 060 DEG HDG. I UNDERSTOOD 160 DEGS AS THIS IS THE NORMAL HEADING FOR THE BASE LEG. I STARTED THE TURN TO THE R. AS THE FO QUESTIONED MY ACTIONS THE CTLR GAVE US AN IMMEDIATE TURN TO THE L. AS WE WERE IN THE L TURN WE GOT A TCASII TA. THAT WAS THE END OF THE INCIDENT. THE PROB AROSE WITH THE FREQ BEING SO BUSY WE COULD NOT QUESTION THE HEADING. ALSO THE CTLR WAS SO BUSY HE SEEMED FRUSTRATED AND WAS REPLACED ABOUT A MIN AFTER THE OCCURRENCE.
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.