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Flight crew of medium large transport on approach to atl had near midair collision with small aircraft.
| Attributes | |
| ACN | 136301 |
| Time | |
| Date | 199002 |
| Day | Thu |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | atc facility : atl |
| State Reference | GA |
| Altitude | msl bound lower : 3500 msl bound upper : 4000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Dusk |
| Aircraft 1 | |
| Controlling Facilities | tracon : atl |
| Operator | common carrier : air carrier |
| Make Model Name | Medium Large Transport, Low Wing, 2 Turbojet Eng |
| 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 | other |
| Make Model Name | Small Transport, Low Wing, 2 Recip Eng |
| Flight Phase | other |
| Flight Plan | None |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : instrument pilot : atp pilot : commercial |
| Experience | flight time last 90 days : 200 flight time total : 16000 flight time type : 1000 |
| ASRS Report | 136301 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : cfi pilot : instrument pilot : flight engineer pilot : commercial pilot : atp |
| Experience | flight time last 90 days : 150 flight time total : 9500 flight time type : 600 |
| ASRS Report | 136089 |
| Events | |
| Anomaly | conflict : nmac other anomaly other |
| Independent Detector | other flight crewa |
| Resolutory Action | flight crew : took evasive action |
| Consequence | Other |
| Miss Distance | horizontal : 175 vertical : 175 |
| Supplementary | |
| Primary Problem | Flight Crew Human Performance |
Narrative:
While inbound on approach to 27L at atl, approximately 2 mi from intercepting the final approach course, we observed a small twin engine aircraft at our altitude at 10-11 O'clock, less than 1 mi, heading toward us on an angle from left to right. Upon determining no change in bearing, but a rapid closure rate, I disengaged the autoplt and rapidly banked to the left to pass behind him and climbed slightly. We had no traffic advisory from ATC approach. The remainder of the flight was uneventful. I feel that had we not sighted the aircraft, we would have hit him. A timely traffic advisory from approach would have been an enormous help. West/O it, it was pure luck that we spotted him in time to take evasive action.
Original NASA ASRS Text
Title: FLT CREW OF MLG ON APCH TO ATL HAD NMAC WITH SMA.
Narrative: WHILE INBND ON APCH TO 27L AT ATL, APPROX 2 MI FROM INTERCEPTING THE FINAL APCH COURSE, WE OBSERVED A SMALL TWIN ENG ACFT AT OUR ALT AT 10-11 O'CLOCK, LESS THAN 1 MI, HDG TOWARD US ON AN ANGLE FROM LEFT TO RIGHT. UPON DETERMINING NO CHANGE IN BEARING, BUT A RAPID CLOSURE RATE, I DISENGAGED THE AUTOPLT AND RAPIDLY BANKED TO THE LEFT TO PASS BEHIND HIM AND CLBED SLIGHTLY. WE HAD NO TFC ADVISORY FROM ATC APCH. THE REMAINDER OF THE FLT WAS UNEVENTFUL. I FEEL THAT HAD WE NOT SIGHTED THE ACFT, WE WOULD HAVE HIT HIM. A TIMELY TFC ADVISORY FROM APCH WOULD HAVE BEEN AN ENORMOUS HELP. W/O IT, IT WAS PURE LUCK THAT WE SPOTTED HIM IN TIME TO TAKE EVASIVE ACTION.
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.