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A boeing flight crew received a TCASII RA on departure from lga from a trailing airbus A320 which was ignored.
| Attributes | |
| ACN | 446218 |
| Time | |
| Date | 199908 |
| Day | Wed |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | airport : lga.airport |
| State Reference | NY |
| Altitude | msl single value : 5600 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tracon : n90.tracon tower : jnu.tower |
| Operator | common carrier : air carrier |
| Make Model Name | B727 Undifferentiated or Other Model |
| Operating Under FAR Part | Part 121 |
| Navigation In Use | other vortac |
| Flight Phase | climbout : initial |
| Route In Use | departure sid : lga 9 |
| Flight Plan | IFR |
| Aircraft 2 | |
| Controlling Facilities | tracon : n90.tracon |
| Operator | common carrier : air carrier |
| Make Model Name | A320 |
| Operating Under FAR Part | Part 121 |
| Navigation In Use | other other vortac |
| Flight Phase | climbout : initial |
| Route In Use | departure sid : lga 9 |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : atp pilot : multi engine |
| Experience | flight time last 90 days : 150 flight time total : 7700 |
| ASRS Report | 446218 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Events | |
| Anomaly | conflict : airborne critical other anomaly other |
| Independent Detector | aircraft equipment : tcas other flight crewa |
| Resolutory Action | flight crew : took evasive action |
| Miss Distance | horizontal : 6000 vertical : 500 |
| Supplementary | |
| Problem Areas | ATC Human Performance |
| Primary Problem | ATC Human Performance |
| Air Traffic Incident | Operational Error |
| Situations | |
| Chart | sid : la guardia 9 maspeth climb |
Narrative:
During departure from lga runway 13 maspeth climb, we got an RA from the TCASII. If we had tried to follow the RA, I believe it would have made a collision more likely. After a normal takeoff, we reached 3000 ft and started our turn from 175 degree heading to 340 degree heading at about 5 DME. Immediately after we started our turn, departure called and asked if we had started our turn yet. We replied affirmative and departure called aircraft Y to tell him he was turning inside of us. (An aircraft Y A320 departed after we did also from runway 13 on maspeth climb.) departure told us to expedite our climb through 6000 ft. After we acknowledged he told aircraft Y to stop his climb at 5000 ft. We were already passing 5600 ft and climbing about 2000 FPM. At that time we got a TCASII RA to 'descend' and the red arc on TCASII showed we needed 2500 FPM down. I looked out and saw the aircraft Y A320 at about our 4 O'clock position, below us, on an intercept heading. We disregarded the TCASII, kept aircraft Y in sight until he crossed directly below us. If we had not had him insight and had tried to follow the RA I believe we may have hit the A320. We didn't find out if the aircraft Y A320 got an RA. ATC noticed and corrected the conflict but the TCASII RA worries me.
Original NASA ASRS Text
Title: A BOEING FLC RECEIVED A TCASII RA ON DEP FROM LGA FROM A TRAILING AIRBUS A320 WHICH WAS IGNORED.
Narrative: DURING DEP FROM LGA RWY 13 MASPETH CLB, WE GOT AN RA FROM THE TCASII. IF WE HAD TRIED TO FOLLOW THE RA, I BELIEVE IT WOULD HAVE MADE A COLLISION MORE LIKELY. AFTER A NORMAL TKOF, WE REACHED 3000 FT AND STARTED OUR TURN FROM 175 DEG HDG TO 340 DEG HDG AT ABOUT 5 DME. IMMEDIATELY AFTER WE STARTED OUR TURN, DEP CALLED AND ASKED IF WE HAD STARTED OUR TURN YET. WE REPLIED AFFIRMATIVE AND DEP CALLED ACFT Y TO TELL HIM HE WAS TURNING INSIDE OF US. (AN ACFT Y A320 DEPARTED AFTER WE DID ALSO FROM RWY 13 ON MASPETH CLB.) DEP TOLD US TO EXPEDITE OUR CLB THROUGH 6000 FT. AFTER WE ACKNOWLEDGED HE TOLD ACFT Y TO STOP HIS CLB AT 5000 FT. WE WERE ALREADY PASSING 5600 FT AND CLBING ABOUT 2000 FPM. AT THAT TIME WE GOT A TCASII RA TO 'DSND' AND THE RED ARC ON TCASII SHOWED WE NEEDED 2500 FPM DOWN. I LOOKED OUT AND SAW THE ACFT Y A320 AT ABOUT OUR 4 O'CLOCK POS, BELOW US, ON AN INTERCEPT HDG. WE DISREGARDED THE TCASII, KEPT ACFT Y IN SIGHT UNTIL HE CROSSED DIRECTLY BELOW US. IF WE HAD NOT HAD HIM INSIGHT AND HAD TRIED TO FOLLOW THE RA I BELIEVE WE MAY HAVE HIT THE A320. WE DIDN'T FIND OUT IF THE ACFT Y A320 GOT AN RA. ATC NOTICED AND CORRECTED THE CONFLICT BUT THE TCASII RA WORRIES ME.
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.