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Ord controller experienced operational error at 1000 ft when failing to note separation with released parallel runway traffic; citing tower visibility obstruction.
| Attributes | |
| ACN | 783125 |
| Time | |
| Date | 200804 |
| Local Time Of Day | 1801 To 2400 |
| Place | |
| Locale Reference | airport : ord.airport |
| State Reference | IL |
| Altitude | agl single value : 1000 |
| Environment | |
| Flight Conditions | VMC VMC |
| Aircraft 1 | |
| Controlling Facilities | tower : ord.tower |
| Operator | common carrier : air carrier |
| Make Model Name | DC-9 Undifferentiated or Other Model |
| Operating Under FAR Part | Part 121 |
| Flight Phase | climbout : takeoff |
| Flight Plan | IFR |
| Aircraft 2 | |
| Controlling Facilities | tower : ord.tower |
| Operator | common carrier : air carrier |
| Make Model Name | A330 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | climbout : takeoff |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | government : faa |
| Function | controller : local |
| Qualification | controller : radar |
| Experience | controller military : 9 controller radar : 8 controller time certified in position1 : 12 |
| ASRS Report | 783125 |
| Events | |
| Anomaly | conflict : airborne less severe non adherence : required legal separation |
| Independent Detector | other controllera |
| Resolutory Action | none taken : detected after the fact |
| Consequence | faa : investigated |
| Supplementary | |
| Problem Areas | Environmental Factor ATC Facility ATC Human Performance |
| Primary Problem | ATC Human Performance |
| Air Traffic Incident | Operational Error |
Narrative:
I was departing runway 32L at T10 intersection which is a departure only runway; north local coordination a northbound departure on runway 32R which I released. Several mins had passed since I heard 'rolling 32R' so I assumed the aircraft was long gone. We noticed they were side-by-side after switching them to departure then called the departure controller. The tower is under construction; therefore; I was unable to see runway 32R. 32L T10 is directly in front of me but my equipment (d-brite; asde-X) had been repositioned behind me for construction. They built a center elevated work area in the tower which blocks the view of the entire north side of the airport and it is very hard to hear what is going on and most coordination is verbal. Normally I would have looked at the d-brite prior to switching to departure but it was behind me and my work was in front of me.
Original NASA ASRS Text
Title: ORD CTLR EXPERIENCED OPERROR AT 1000 FT WHEN FAILING TO NOTE SEPARATION WITH RELEASED PARALLEL RWY TFC; CITING TWR VISIBILITY OBSTRUCTION.
Narrative: I WAS DEPARTING RWY 32L AT T10 INTXN WHICH IS A DEP ONLY RWY; N LCL COORD A NBOUND DEP ON RWY 32R WHICH I RELEASED. SEVERAL MINS HAD PASSED SINCE I HEARD 'ROLLING 32R' SO I ASSUMED THE ACFT WAS LONG GONE. WE NOTICED THEY WERE SIDE-BY-SIDE AFTER SWITCHING THEM TO DEP THEN CALLED THE DEP CTLR. THE TWR IS UNDER CONSTRUCTION; THEREFORE; I WAS UNABLE TO SEE RWY 32R. 32L T10 IS DIRECTLY IN FRONT OF ME BUT MY EQUIP (D-BRITE; ASDE-X) HAD BEEN REPOSITIONED BEHIND ME FOR CONSTRUCTION. THEY BUILT A CTR ELEVATED WORK AREA IN THE TWR WHICH BLOCKS THE VIEW OF THE ENTIRE N SIDE OF THE ARPT AND IT IS VERY HARD TO HEAR WHAT IS GOING ON AND MOST COORD IS VERBAL. NORMALLY I WOULD HAVE LOOKED AT THE D-BRITE PRIOR TO SWITCHING TO DEP BUT IT WAS BEHIND ME AND MY WORK WAS IN FRONT OF ME.
Data retrieved from NASA's ASRS site as of May 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.