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Phl approach controller observed one aircraft off course, issued a corrective heading to another aircraft but too late to maintain separation.
| Attributes | |
| ACN | 638210 |
| Time | |
| Date | 200411 |
| Day | Thu |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | airport : phl.airport |
| State Reference | PA |
| Altitude | msl bound lower : 2500 msl bound upper : 3500 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tracon : phl.tracon |
| Operator | common carrier : air carrier |
| Make Model Name | Dash 8 Series Undifferentiated or Other Model |
| Operating Under FAR Part | Part 121 |
| Flight Phase | descent : intermediate altitude |
| Route In Use | arrival : on vectors |
| Flight Plan | IFR |
| Aircraft 2 | |
| Controlling Facilities | tracon : phl.tracon |
| Operator | common carrier : air carrier |
| Make Model Name | Regional Jet 200 ER&LR |
| Operating Under FAR Part | Part 121 |
| Flight Phase | descent : approach |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | government : faa |
| Function | controller : approach |
| Qualification | controller : radar controller : non radar controller : military |
| Experience | controller military : 10 controller non radar : 15 controller radar : 15 |
| ASRS Report | 638210 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Events | |
| Anomaly | conflict : airborne less severe non adherence : required legal separation |
| Independent Detector | atc equipment : conflict alert other controllera |
| Resolutory Action | controller : issued new clearance flight crew : took evasive action |
| Consequence | faa : investigated |
| Miss Distance | horizontal : 12000 vertical : 800 |
| Supplementary | |
| Problem Areas | Flight Crew Human Performance ATC Human Performance |
| Primary Problem | ATC Human Performance |
| Air Traffic Incident | Operational Error |
Narrative:
I was working the woodstown sector on a 27/35 operation. I issued a heading (left turn) to 300 degrees to air carrier X. I observed air carrier X off course and then issued traffic, climb, and turn to separate from other traffic.
Original NASA ASRS Text
Title: PHL APCH CTLR OBSERVED ONE ACFT OFF COURSE, ISSUED A CORRECTIVE HDG TO ANOTHER ACFT BUT TOO LATE TO MAINTAIN SEPARATION.
Narrative: I WAS WORKING THE WOODSTOWN SECTOR ON A 27/35 OP. I ISSUED A HDG (L TURN) TO 300 DEGS TO ACR X. I OBSERVED ACR X OFF COURSE AND THEN ISSUED TFC, CLB, AND TURN TO SEPARATE FROM OTHER TFC.
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.