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Departure F100 has to perform evasive action when in conflict at 5000 ft with a VFR aircraft in proximity to the departure route from ord, il.
| Attributes | |
| ACN | 594433 |
| Time | |
| Date | 200309 |
| Day | Thu |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | airport : ord.airport |
| State Reference | IL |
| Altitude | msl bound lower : 4500 msl bound upper : 5000 |
| Environment | |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tracon : c90.tracon |
| Operator | common carrier : air carrier |
| Make Model Name | Fokker 100 |
| Operating Under FAR Part | Part 121 |
| Navigation In Use | other |
| Flight Phase | climbout : intermediate altitude |
| Flight Plan | IFR |
| Aircraft 2 | |
| Controlling Facilities | tracon : c90.tracon |
| Make Model Name | Any Unknown or Unlisted Aircraft Manufacturer |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| ASRS Report | 594433 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : multi engine pilot : instrument pilot : commercial |
| ASRS Report | 594432 |
| Events | |
| Anomaly | altitude deviation : excursion from assigned altitude conflict : airborne critical non adherence : published procedure non adherence : required legal separation other anomaly other |
| Independent Detector | other controllera |
| Resolutory Action | flight crew : returned to assigned altitude flight crew : took evasive action other |
| Miss Distance | horizontal : 3000 vertical : 500 |
| Supplementary | |
| Problem Areas | Airspace Structure ATC Human Performance |
| Primary Problem | ATC Human Performance |
| Air Traffic Incident | Operational Error Intra Facility Coordination Failure |
Narrative:
ATC facility: ord departure. Location: ord, 170 degree radial 15 DME departure. On departure from ord at 5000 ft level, departure control advised VFR traffic at 5500 ft. Idented traffic at 10 O'clock position. As traffic approached to 9 O'clock position and 1/2 mi received an RA on cockpit TCASII to 'descend, descend now.' copilot followed advisory to clear of conflict down to 4500 ft. Returned to previous altitude of 5000 ft. Informed ATC we were following RA and were returning to altitude. No comment from ATC.
Original NASA ASRS Text
Title: DEP F100 HAS TO PERFORM EVASIVE ACTION WHEN IN CONFLICT AT 5000 FT WITH A VFR ACFT IN PROX TO THE DEP RTE FROM ORD, IL.
Narrative: ATC FACILITY: ORD DEP. LOCATION: ORD, 170 DEG RADIAL 15 DME DEP. ON DEP FROM ORD AT 5000 FT LEVEL, DEP CTL ADVISED VFR TFC AT 5500 FT. IDENTED TFC AT 10 O'CLOCK POS. AS TFC APCHED TO 9 O'CLOCK POS AND 1/2 MI RECEIVED AN RA ON COCKPIT TCASII TO 'DSND, DSND NOW.' COPLT FOLLOWED ADVISORY TO CLR OF CONFLICT DOWN TO 4500 FT. RETURNED TO PREVIOUS ALT OF 5000 FT. INFORMED ATC WE WERE FOLLOWING RA AND WERE RETURNING TO ALT. NO COMMENT FROM ATC.
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.