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Flight crew of a british jetstream, 41, climbed in response to a TCASII RA when observing an air carrier B777 climbing on a collision course. Departure controller had issued advisory to both aircraft and the B777 crew advised that the reporter's aircraft was in sight.
| Attributes | |
| ACN | 467014 |
| Time | |
| Date | 200003 |
| Day | Fri |
| Local Time Of Day | 1801 To 2400 |
| Place | |
| Locale Reference | navaid : dpk.vor |
| State Reference | NY |
| Altitude | msl bound lower : 14000 msl bound upper : 14700 |
| Environment | |
| Flight Conditions | VMC |
| Light | Night |
| Aircraft 1 | |
| Controlling Facilities | tracon : n90.tracon |
| Operator | common carrier : air carrier |
| Make Model Name | Jetstream 41 |
| Operating Under FAR Part | Part 119 |
| Navigation In Use | other vortac |
| Flight Phase | cruise : level |
| Flight Plan | IFR |
| Aircraft 2 | |
| Controlling Facilities | tracon : n90.tracon |
| Operator | common carrier : air carrier |
| Make Model Name | B777 Undifferentiated or Other Model |
| Operating Under FAR Part | Part 121 |
| Navigation In Use | other |
| Flight Phase | climbout : vacating altitude |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp pilot : multi engine |
| Experience | flight time last 90 days : 180 flight time total : 3750 flight time type : 1825 |
| ASRS Report | 467014 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : commercial pilot : instrument pilot : multi engine |
| Events | |
| Anomaly | altitude deviation : excursion from assigned altitude conflict : airborne less severe |
| Independent Detector | aircraft equipment : tcas other flight crewa |
| Resolutory Action | flight crew : took precautionary avoidance action |
| Miss Distance | horizontal : 0 vertical : 500 |
| Supplementary | |
| Problem Areas | Flight Crew Human Performance |
| Primary Problem | Flight Crew Human Performance |
Narrative:
We were level at 14000 ft on new york approach (126.8). New york cleared an air carrier Y B777 to climb from below us to 17000 ft in reference to us. Air carrier Y heavy said they had us in sight and on TCASII. We were flying northwest on the dpk 320 degree radial, air carrier Y was flying northeast. As they got closer, it was obvious they were on a collision course with us. I queried new york. In the meantime, our TCASII showed air carrier Y a mi or two to our left, within 1000 ft and closing. We got an RA to 'climb,' which we did at 2500 FPM. When air carrier Y passed under us, I believe they were around 600 ft below us. We climbed 700 ft above our assigned altitude before leveling. When I told new york what happened, he said 'he had you in sight, it was a triple seven, it probably just looked big.' air carrier Y never responded. I'm not sure what the air carrier Y pilots were thinking, they couldn't have been paying much attention. I believe if we hadn't taken evasive procedures, this would have been a midair collision.
Original NASA ASRS Text
Title: FLC OF A BRITISH JETSTREAM, 41, CLBED IN RESPONSE TO A TCASII RA WHEN OBSERVING AN ACR B777 CLBING ON A COLLISION COURSE. DEP CTLR HAD ISSUED ADVISORY TO BOTH ACFT AND THE B777 CREW ADVISED THAT THE RPTR'S ACFT WAS IN SIGHT.
Narrative: WE WERE LEVEL AT 14000 FT ON NEW YORK APCH (126.8). NEW YORK CLRED AN ACR Y B777 TO CLB FROM BELOW US TO 17000 FT IN REF TO US. ACR Y HVY SAID THEY HAD US IN SIGHT AND ON TCASII. WE WERE FLYING NW ON THE DPK 320 DEG RADIAL, ACR Y WAS FLYING NE. AS THEY GOT CLOSER, IT WAS OBVIOUS THEY WERE ON A COLLISION COURSE WITH US. I QUERIED NEW YORK. IN THE MEANTIME, OUR TCASII SHOWED ACR Y A MI OR TWO TO OUR LEFT, WITHIN 1000 FT AND CLOSING. WE GOT AN RA TO 'CLB,' WHICH WE DID AT 2500 FPM. WHEN ACR Y PASSED UNDER US, I BELIEVE THEY WERE AROUND 600 FT BELOW US. WE CLBED 700 FT ABOVE OUR ASSIGNED ALT BEFORE LEVELING. WHEN I TOLD NEW YORK WHAT HAPPENED, HE SAID 'HE HAD YOU IN SIGHT, IT WAS A TRIPLE SEVEN, IT PROBABLY JUST LOOKED BIG.' ACR Y NEVER RESPONDED. I'M NOT SURE WHAT THE ACR Y PLTS WERE THINKING, THEY COULDN'T HAVE BEEN PAYING MUCH ATTN. I BELIEVE IF WE HADN'T TAKEN EVASIVE PROCS, THIS WOULD HAVE BEEN A MIDAIR COLLISION.
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.