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Air carrier X TCASII TA RA evasive action taken had less than standard separation from air carrier Y same altitude assigned. System error.
| Attributes | |
| ACN | 225223 |
| Time | |
| Date | 199210 |
| Day | Sat |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | atc facility : lga |
| State Reference | NY |
| Altitude | msl bound lower : 12000 msl bound upper : 12000 |
| Environment | |
| Flight Conditions | Mixed |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tracon : n90 |
| Operator | common carrier : air carrier |
| Make Model Name | Large Transport, Low Wing, 2 Turbojet Eng |
| Navigation In Use | Other Other |
| Flight Phase | cruise other |
| Route In Use | enroute : on vectors |
| Flight Plan | IFR |
| Aircraft 2 | |
| Operator | common carrier : air carrier |
| Make Model Name | Light Transport, Low Wing, 2 Turboprop Eng |
| Flight Phase | cruise other |
| Route In Use | enroute : direct |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 310 flight time total : 16400 flight time type : 480 |
| ASRS Report | 225223 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : atp |
| Events | |
| Anomaly | conflict : airborne less severe non adherence : published procedure non adherence : required legal separation |
| Independent Detector | aircraft equipment other aircraft equipment : unspecified |
| Resolutory Action | flight crew : took evasive action |
| Consequence | Other |
| Miss Distance | horizontal : 3000 vertical : 500 |
| Supplementary | |
| Primary Problem | ATC Human Performance |
| Air Traffic Incident | Operational Error |
Narrative:
Departing lga, wbound at 12000 ft, we received a TA and RA on our TCASII. Our command was to descend. Air carrier Y was spotted by the first officer above and to the right. Departure control gave us a turn to the left, but after we had responded to the RA. Departure control stated they were busy and said sorry about the late turn.
Original NASA ASRS Text
Title: ACR X TCASII TA RA EVASIVE ACTION TAKEN HAD LTSS FROM ACR Y SAME ALT ASSIGNED. SYS ERROR.
Narrative: DEPARTING LGA, WBOUND AT 12000 FT, WE RECEIVED A TA AND RA ON OUR TCASII. OUR COMMAND WAS TO DSND. ACR Y WAS SPOTTED BY THE FO ABOVE AND TO THE R. DEP CTL GAVE US A TURN TO THE L, BUT AFTER WE HAD RESPONDED TO THE RA. DEP CTL STATED THEY WERE BUSY AND SAID SORRY ABOUT THE LATE TURN.
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.