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An air carrier medium large transport crew selected the wrong VOR radial. This caused a TCASII alert and a potential conflict less than standard separation.
| Attributes | |
| ACN | 360012 |
| Time | |
| Date | 199702 |
| Day | Thu |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | atc facility : lax |
| State Reference | CA |
| Altitude | msl bound lower : 24000 msl bound upper : 31000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : zla tower : anc |
| Operator | common carrier : air carrier |
| Make Model Name | Commercial Fixed Wing |
| Operating Under FAR Part | Part 121 |
| Flight Phase | cruise other descent other |
| Route In Use | arrival star : star |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 240 flight time total : 9500 flight time type : 240 |
| ASRS Report | 360012 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Events | |
| Anomaly | non adherence : clearance non adherence : published procedure other anomaly other other spatial deviation |
| Independent Detector | aircraft equipment other aircraft equipment : unspecified other controllera other flight crewa |
| Resolutory Action | flight crew : returned to intended course or assigned course flight crew : became reoriented |
| Consequence | Other |
| Supplementary | |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | Pilot Deviation |
Narrative:
Flight was proceeding to san on cardi 2 arrival. Approximately over lax VOR, aircraft cleared to about FL240. Arrival proceeds on lax 118 degree radial to cardi intersection, then on mzb 320 degree radial inbound. Crossing VOR, chart was misread and, instead of 118 degrees being selected, 140 degrees was put in omni bearing selector. Captain missed the error because he was copying san ATIS during descent, a TCASII RA sounded. At this point we both made visual contact with traffic and realized mistake. Turn was begun to reintercept correct radial but were close enough to get RA. ATC questioned us on our position. Aircraft were never in threat of collision but close enough to get RA. Incident occurred due to inattn on PF and distraction on PNF's part. To correct situation, have both pilots monitoring operations during altitude and course changes and only make extra duties (ATIS, company call) when established on course.
Original NASA ASRS Text
Title: AN ACR MLG CREW SELECTED THE WRONG VOR RADIAL. THIS CAUSED A TCASII ALERT AND A POTENTIAL CONFLICT LTSS.
Narrative: FLT WAS PROCEEDING TO SAN ON CARDI 2 ARR. APPROX OVER LAX VOR, ACFT CLRED TO ABOUT FL240. ARR PROCEEDS ON LAX 118 DEG RADIAL TO CARDI INTXN, THEN ON MZB 320 DEG RADIAL INBOUND. XING VOR, CHART WAS MISREAD AND, INSTEAD OF 118 DEGS BEING SELECTED, 140 DEGS WAS PUT IN OMNI BEARING SELECTOR. CAPT MISSED THE ERROR BECAUSE HE WAS COPYING SAN ATIS DURING DSCNT, A TCASII RA SOUNDED. AT THIS POINT WE BOTH MADE VISUAL CONTACT WITH TFC AND REALIZED MISTAKE. TURN WAS BEGUN TO REINTERCEPT CORRECT RADIAL BUT WERE CLOSE ENOUGH TO GET RA. ATC QUESTIONED US ON OUR POS. ACFT WERE NEVER IN THREAT OF COLLISION BUT CLOSE ENOUGH TO GET RA. INCIDENT OCCURRED DUE TO INATTN ON PF AND DISTR ON PNF'S PART. TO CORRECT SIT, HAVE BOTH PLTS MONITORING OPS DURING ALT AND COURSE CHANGES AND ONLY MAKE EXTRA DUTIES (ATIS, COMPANY CALL) WHEN ESTABLISHED ON COURSE.
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.