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Reported situation of an air carrier A320 flight crew claiming a near midair with a B767 on which they were maintaining visual separation while both aircraft were on approach to the same airport.
| Attributes | |
| ACN | 396339 |
| Time | |
| Date | 199803 |
| Day | Thu |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | airport : lax |
| State Reference | CA |
| Altitude | msl bound lower : 10000 msl bound upper : 10300 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tracon : lax tower : atl |
| Operator | common carrier : air carrier |
| Make Model Name | A320 |
| Operating Under FAR Part | Part 121 |
| Navigation In Use | Other Other |
| Flight Phase | descent : approach descent other |
| Route In Use | arrival other enroute : on vectors |
| Flight Plan | IFR |
| Aircraft 2 | |
| Operator | common carrier : air carrier |
| Make Model Name | B767 Undifferentiated or Other Model |
| Operating Under FAR Part | Part 121 |
| 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 | government : faa |
| Function | controller : approach |
| Qualification | controller : radar |
| Experience | controller radar : 15 |
| ASRS Report | 396339 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Events | |
| Anomaly | conflict : airborne less severe other anomaly other |
| Independent Detector | aircraft equipment other aircraft equipment : unspecified other flight crewa |
| Resolutory Action | flight crew : took evasive action |
| Consequence | Other |
| Miss Distance | horizontal : 2500 vertical : 300 |
| Supplementary | |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | Pilot Deviation other |
Narrative:
An A320 was leading a B767 on civet STAR. The A320 was vectored off course and paralleled south of the B767 until visual separation was issued -- A320 visual on B767. The A320 checked on my frequency with less than 2 mi lateral separation and converging on the same STAR. The A320 stopped his descent at 10300 ft and initiated a climb and turned approximately 50 degrees north to avoid the B767. The A320 announced on the frequency that he was responding to TCASII and he wanted to report a near midair. Callback conversation with reporter revealed the following information: reporter alleges controllers were not properly trained for operations in new sector feeding aircraft from different routes to a single final. Reporter stated the previous approach controller that while using visual separation by the A320 on the widebody transport, both aircraft were inbound to the same fix. Reporter claims the controllers have learned to control the situation by setting up parallel approachs to different runways using vectors and visual separation with one aircraft on the approach procedure to the runway specified.
Original NASA ASRS Text
Title: RPTED SIT OF AN ACR A320 FLC CLAIMING A NEAR MIDAIR WITH A B767 ON WHICH THEY WERE MAINTAINING VISUAL SEPARATION WHILE BOTH ACFT WERE ON APCH TO THE SAME ARPT.
Narrative: AN A320 WAS LEADING A B767 ON CIVET STAR. THE A320 WAS VECTORED OFF COURSE AND PARALLELED S OF THE B767 UNTIL VISUAL SEPARATION WAS ISSUED -- A320 VISUAL ON B767. THE A320 CHKED ON MY FREQ WITH LESS THAN 2 MI LATERAL SEPARATION AND CONVERGING ON THE SAME STAR. THE A320 STOPPED HIS DSCNT AT 10300 FT AND INITIATED A CLB AND TURNED APPROX 50 DEGS N TO AVOID THE B767. THE A320 ANNOUNCED ON THE FREQ THAT HE WAS RESPONDING TO TCASII AND HE WANTED TO RPT A NEAR MIDAIR. CALLBACK CONVERSATION WITH RPTR REVEALED THE FOLLOWING INFO: RPTR ALLEGES CTLRS WERE NOT PROPERLY TRAINED FOR OPS IN NEW SECTOR FEEDING ACFT FROM DIFFERENT ROUTES TO A SINGLE FINAL. RPTR STATED THE PREVIOUS APCH CTLR THAT WHILE USING VISUAL SEPARATION BY THE A320 ON THE WDB, BOTH ACFT WERE INBOUND TO THE SAME FIX. RPTR CLAIMS THE CTLRS HAVE LEARNED TO CTL THE SIT BY SETTING UP PARALLEL APCHS TO DIFFERENT RWYS USING VECTORS AND VISUAL SEPARATION WITH ONE ACFT ON THE APCH PROC TO THE RWY SPECIFIED.
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.