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B737 and E145 departures from ord are spaced too closely and require departure controller spacing via vector within ord tower radius of control.
| Attributes | |
| ACN | 709708 |
| Time | |
| Date | 200609 |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | airport : ord.airport |
| State Reference | IL |
| Altitude | msl single value : 5000 |
| Environment | |
| Flight Conditions | IMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tracon : c90.tracon |
| Operator | common carrier : air carrier |
| Make Model Name | B737 Undifferentiated or Other Model |
| Operating Under FAR Part | Part 121 |
| Flight Phase | climbout : initial |
| Route In Use | departure : on vectors |
| Flight Plan | IFR |
| Aircraft 2 | |
| Controlling Facilities | tracon : c90.tracon |
| Operator | common carrier : air carrier |
| Make Model Name | EMB ERJ 145 ER&LR |
| Operating Under FAR Part | Part 121 |
| Flight Phase | climbout : initial |
| Route In Use | departure : on vectors |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | government : faa |
| Function | controller : departure |
| Qualification | controller : radar |
| Experience | controller military : 3 controller radar : 18 controller time certified in position1 : 9 |
| ASRS Report | 709708 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Events | |
| Anomaly | conflict : airborne less severe non adherence : required legal separation non adherence : published procedure |
| Independent Detector | other controllera |
| Resolutory Action | controller : issued new clearance |
| Supplementary | |
| Problem Areas | Airspace Structure ATC Human Performance |
| Primary Problem | ATC Human Performance |
| Air Traffic Incident | Operational Deviation |
Narrative:
Ord tower airspace is a 5 mi radius of ord up to and including 5000 ft. Departure control cannot turn an aircraft off initial tower assigned heading until 5 mi from the airport or out of 6000 ft. Air carrier X was assigned a 040 degree heading by ord tower; routing over elx. When air carrier X reached 5 mi; I turned it to a 090 degree heading. Air carrier Y was assigned a 060 degree heading by ord tower; routing over gij. This aircraft was on a heading to intercept air carrier X. As a result; I was forced to turn air carrier Y 1 mi inside of ord tower airspace to achieve separation. Ord tower needs to give more room on departure.
Original NASA ASRS Text
Title: B737 AND E145 DEPS FROM ORD ARE SPACED TOO CLOSELY AND REQUIRE DEP CTLR SPACING VIA VECTOR WITHIN ORD TWR RADIUS OF CTL.
Narrative: ORD TWR AIRSPACE IS A 5 MI RADIUS OF ORD UP TO AND INCLUDING 5000 FT. DEP CTL CANNOT TURN AN ACFT OFF INITIAL TWR ASSIGNED HDG UNTIL 5 MI FROM THE ARPT OR OUT OF 6000 FT. ACR X WAS ASSIGNED A 040 DEG HDG BY ORD TWR; ROUTING OVER ELX. WHEN ACR X REACHED 5 MI; I TURNED IT TO A 090 DEG HDG. ACR Y WAS ASSIGNED A 060 DEG HDG BY ORD TWR; ROUTING OVER GIJ. THIS ACFT WAS ON A HDG TO INTERCEPT ACR X. AS A RESULT; I WAS FORCED TO TURN ACR Y 1 MI INSIDE OF ORD TWR AIRSPACE TO ACHIEVE SEPARATION. ORD TWR NEEDS TO GIVE MORE ROOM ON DEP.
Data retrieved from NASA's ASRS site as of January 2009 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.