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Air carrier medium large transport aircraft was turned late by ATC to intercept the localizer course inbound and subsequently adjusted the turn to avoid another air carrier medium large transport aircraft also turning on final but to the parallel runway.
| Attributes | |
| ACN | 205212 |
| Time | |
| Date | 199203 |
| Day | Thu |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | airport : pit |
| State Reference | PA |
| Altitude | msl bound lower : 4500 msl bound upper : 5000 |
| Environment | |
| Flight Conditions | Mixed |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tracon : pit |
| Operator | common carrier : air carrier |
| Make Model Name | Medium Large Transport, Low Wing, 2 Turbojet Eng |
| Flight Phase | descent : approach |
| Route In Use | enroute : on vectors |
| Flight Plan | IFR |
| Aircraft 2 | |
| Operator | common carrier : air carrier |
| Make Model Name | Medium Large Transport, Low Wing, 2 Turbojet Eng |
| Flight Phase | descent : approach |
| Route In Use | enroute : on vectors |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : instrument pilot : flight engineer pilot : commercial |
| Experience | flight time last 90 days : 180 flight time total : 4000 flight time type : 850 |
| ASRS Report | 205212 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Events | |
| Anomaly | other anomaly other other spatial deviation |
| Independent Detector | other controllera other flight crewa |
| Resolutory Action | flight crew : took evasive action |
| Consequence | Other |
| Miss Distance | vertical : 500 |
| Supplementary | |
| Primary Problem | ATC Human Performance |
| Air Traffic Incident | Operational Error |
Narrative:
At 5000 ft on downwind for ILS 28L, the controller slowed us to 180 KTS and indicated that we were a 'little close to the localizer' and that he would be turning us 'tighter than he normally would like.' we were given a turn to approximately 350 degree and a descent to 4000 ft which we initiated immediately simultaneously. As we turned, we saw another aircraft (medium large transport aircraft) at 12 O'clock. We altered our heading slightly right and were expediting our descent. We inquired about the traffic but got no reply (he was busy and uncertain). We were a little overshot in relation to our final approach course and it appeared the other aircraft was overshot by quite a bit. We approximate that we had 500 ft vertical separation when we crossed. We then continued our approach as normal.
Original NASA ASRS Text
Title: ACR MLG ACFT WAS TURNED LATE BY ATC TO INTERCEPT THE LOC COURSE INBOUND AND SUBSEQUENTLY ADJUSTED THE TURN TO AVOID ANOTHER ACR MLG ACFT ALSO TURNING ON FINAL BUT TO THE PARALLEL RWY.
Narrative: AT 5000 FT ON DOWNWIND FOR ILS 28L, THE CTLR SLOWED US TO 180 KTS AND INDICATED THAT WE WERE A 'LITTLE CLOSE TO THE LOC' AND THAT HE WOULD BE TURNING US 'TIGHTER THAN HE NORMALLY WOULD LIKE.' WE WERE GIVEN A TURN TO APPROX 350 DEG AND A DSCNT TO 4000 FT WHICH WE INITIATED IMMEDIATELY SIMULTANEOUSLY. AS WE TURNED, WE SAW ANOTHER ACFT (MLG ACFT) AT 12 O'CLOCK. WE ALTERED OUR HDG SLIGHTLY R AND WERE EXPEDITING OUR DSCNT. WE INQUIRED ABOUT THE TFC BUT GOT NO REPLY (HE WAS BUSY AND UNCERTAIN). WE WERE A LITTLE OVERSHOT IN RELATION TO OUR FINAL APCH COURSE AND IT APPEARED THE OTHER ACFT WAS OVERSHOT BY QUITE A BIT. WE APPROXIMATE THAT WE HAD 500 FT VERT SEPARATION WHEN WE CROSSED. WE THEN CONTINUED OUR APCH AS NORMAL.
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.