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Multiple runway operation intersecting runways air carrier X had less than standard separation from air carrier Y after takeoff. System error.
| Attributes | |
| ACN | 298469 |
| Time | |
| Date | 199502 |
| Day | Sat |
| Local Time Of Day | 1801 To 2400 |
| Place | |
| Locale Reference | atc facility : ord |
| State Reference | IL |
| Altitude | msl bound lower : 1000 msl bound upper : 1000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Night |
| Aircraft 1 | |
| Controlling Facilities | tower : ord |
| Operator | common carrier : air carrier |
| Make Model Name | Commercial Fixed Wing |
| Operating Under FAR Part | Part 121 |
| Flight Phase | climbout : initial |
| Route In Use | enroute : on vectors |
| Flight Plan | IFR |
| Aircraft 2 | |
| Operator | common carrier : air carrier |
| Make Model Name | B747 Undifferentiated or Other Model |
| Operating Under FAR Part | Part 121 |
| Navigation In Use | Other |
| Flight Phase | climbout : initial |
| Route In Use | enroute : on vectors |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 175 flight time total : 17000 flight time type : 4000 |
| ASRS Report | 298469 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : instrument pilot : commercial |
| Events | |
| Anomaly | conflict : airborne less severe non adherence : required legal separation non adherence : published procedure |
| Independent Detector | aircraft equipment other aircraft equipment : unspecified other controllera |
| Resolutory Action | controller : issued new clearance other |
| Consequence | Other |
| Miss Distance | horizontal : 6000 vertical : 300 |
| Supplementary | |
| Primary Problem | ATC Human Performance |
| Air Traffic Incident | Operational Error |
Narrative:
Cleared for takeoff runway 4L with a left turn to 320 degrees. After takeoff and in the left turn tower instructed us to come back to runway heading and level at 2000 ft. Coincident with a TCASII alert was further instructed to come back left to 270 degrees and climb to 5000 ft. Conflict was an eastbound air carrier Y B747 on an east heading.
Original NASA ASRS Text
Title: MULTIPLE RWY OP INTERSECTING RWYS ACR X HAD LTSS FROM ACR Y AFTER TKOF. SYS ERROR.
Narrative: CLRED FOR TKOF RWY 4L WITH A L TURN TO 320 DEGS. AFTER TKOF AND IN THE L TURN TWR INSTRUCTED US TO COME BACK TO RWY HDG AND LEVEL AT 2000 FT. COINCIDENT WITH A TCASII ALERT WAS FURTHER INSTRUCTED TO COME BACK L TO 270 DEGS AND CLB TO 5000 FT. CONFLICT WAS AN EBOUND ACR Y B747 ON AN E HDG.
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.