 |
37000 Feet | Browse and search NASA's Aviation Safety Reporting System |
|
Air carrier Y on visual approach had less than standard separation from air carrier X same runway. System error.
| Attributes | |
| ACN | 245004 |
| Time | |
| Date | 199306 |
| Day | Sun |
| Local Time Of Day | 1801 To 2400 |
| Place | |
| Locale Reference | atc facility : ord |
| State Reference | IL |
| Environment | |
| Flight Conditions | VMC |
| Light | Night |
| Aircraft 1 | |
| Controlling Facilities | tracon : ord tower : ord |
| Operator | common carrier : air carrier |
| Make Model Name | Light Transport, Low Wing, 2 Turboprop Eng |
| Flight Phase | descent : approach |
| Flight Plan | IFR |
| Aircraft 2 | |
| Operator | common carrier : air carrier |
| Make Model Name | Large Transport, Low Wing, 3 Turbojet Eng |
| Navigation In Use | Other |
| Flight Phase | descent : approach |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | government : faa |
| Function | controller : approach |
| Qualification | controller : radar |
| ASRS Report | 245004 |
| Person 2 | |
| Affiliation | government : faa |
| Function | controller : local |
| Qualification | controller : radar |
| Events | |
| Anomaly | conflict : airborne less severe non adherence : published procedure non adherence : required legal separation |
| Independent Detector | other controllera |
| Resolutory Action | controller : issued new clearance flight crew : exited adverse environment other |
| Consequence | Other |
| Miss Distance | horizontal : 3000 vertical : 0 |
| Supplementary | |
| Primary Problem | ATC Human Performance |
| Air Traffic Incident | Operational Error |
Narrative:
Air carrier X cleared for a visual approach to runway 27L 6 NM east of airport. Air carrier Y was cleared for visual approach to runway 27L 8 1/2 NM east of airport. Air carrier Y overtook air carrier X approximately 5 NM east of airport. Ord local control climbed and turned air carrier Y out to the south. I believed this occurred because I did not instruct air carrier Y to follow air carrier X.
Original NASA ASRS Text
Title: ACR Y ON VISUAL APCH HAD LTSS FROM ACR X SAME RWY. SYS ERROR.
Narrative: ACR X CLRED FOR A VISUAL APCH TO RWY 27L 6 NM E OF ARPT. ACR Y WAS CLRED FOR VISUAL APCH TO RWY 27L 8 1/2 NM E OF ARPT. ACR Y OVERTOOK ACR X APPROX 5 NM E OF ARPT. ORD LCL CTL CLBED AND TURNED ACR Y OUT TO THE S. I BELIEVED THIS OCCURRED BECAUSE I DID NOT INSTRUCT ACR Y TO FOLLOW ACR X.
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.