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During climb out from cvg, a B757 crew received a TCASII alert for traffic that apparently was not noticed by the radar departure controller.
| Attributes | |
| ACN | 568914 |
| Time | |
| Date | 200212 |
| Day | Sun |
| Local Time Of Day | 1801 To 2400 |
| Place | |
| Locale Reference | atc facility : cvg.tracon |
| State Reference | OH |
| Altitude | msl bound lower : 5000 msl bound upper : 7000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Night |
| Aircraft 1 | |
| Controlling Facilities | tracon : cvg.tracon |
| Operator | common carrier : air carrier |
| Make Model Name | B757 Undifferentiated or Other Model |
| Operating Under FAR Part | Part 121 |
| Navigation In Use | other |
| Flight Phase | climbout : intermediate altitude |
| Flight Plan | IFR |
| Aircraft 2 | |
| Make Model Name | Any Unknown or Unlisted Aircraft Manufacturer |
| Flight Phase | cruise : enroute altitude change |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : flight engineer pilot : atp |
| Experience | flight time last 90 days : 100 flight time total : 6000 flight time type : 300 |
| ASRS Report | 568914 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain |
| Qualification | pilot : atp |
| Events | |
| Anomaly | airspace violation : entry conflict : airborne critical non adherence : required legal separation |
| Independent Detector | atc equipment other atc equipment : radar/mode c aircraft equipment : tcas other controllera other flight crewa other flight crewb |
| Resolutory Action | controller : issued advisory flight crew : took evasive action |
| Supplementary | |
| Problem Areas | Flight Crew Human Performance ATC Human Performance |
| Primary Problem | Ambiguous |
Narrative:
Normal takeoff from cvg runway 27 runway heading leveloff altitude 6000 ft. At approximately 5300 ft, TCASII audio goes 'traffic descend,' then immediately 'climb, climb' with guidance. I followed guidance and leveled at 7000 ft MSL. Aircraft causing conflict was at the center of TCASII and then TCASII audio went 'clear of conflict.' we notified controller of TCASII altitude deviation and asked where the conflict aircraft came from and if he was aware of the aircraft. He was just as surprised as we were. He didn't know who it was or where it came from. (Sounds like a TCA violation to me.) then the controller said he had the conflict aircraft at 7000 ft MSL, our altitude, now clear heading south. Neither the captain nor I saw the aircraft and we were doing exactly what the TCASII told us to do in regards to the RA guidance. This was way too close for comfort! Also unnerving was the initial audio 'descend' immediately followed by 'climb, climb.' there was never a yellow TA -- just right to red with aircraft center screen. The remainder of flight was normal.
Original NASA ASRS Text
Title: DURING CLBOUT FROM CVG, A B757 CREW RECEIVED A TCASII ALERT FOR TFC THAT APPARENTLY WAS NOT NOTICED BY THE RADAR DEP CTLR.
Narrative: NORMAL TKOF FROM CVG RWY 27 RWY HDG LEVELOFF ALT 6000 FT. AT APPROX 5300 FT, TCASII AUDIO GOES 'TFC DSND,' THEN IMMEDIATELY 'CLB, CLB' WITH GUIDANCE. I FOLLOWED GUIDANCE AND LEVELED AT 7000 FT MSL. ACFT CAUSING CONFLICT WAS AT THE CTR OF TCASII AND THEN TCASII AUDIO WENT 'CLR OF CONFLICT.' WE NOTIFIED CTLR OF TCASII ALTDEV AND ASKED WHERE THE CONFLICT ACFT CAME FROM AND IF HE WAS AWARE OF THE ACFT. HE WAS JUST AS SURPRISED AS WE WERE. HE DIDN'T KNOW WHO IT WAS OR WHERE IT CAME FROM. (SOUNDS LIKE A TCA VIOLATION TO ME.) THEN THE CTLR SAID HE HAD THE CONFLICT ACFT AT 7000 FT MSL, OUR ALT, NOW CLR HDG S. NEITHER THE CAPT NOR I SAW THE ACFT AND WE WERE DOING EXACTLY WHAT THE TCASII TOLD US TO DO IN REGARDS TO THE RA GUIDANCE. THIS WAS WAY TOO CLOSE FOR COMFORT! ALSO UNNERVING WAS THE INITIAL AUDIO 'DSND' IMMEDIATELY FOLLOWED BY 'CLB, CLB.' THERE WAS NEVER A YELLOW TA -- JUST RIGHT TO RED WITH ACFT CTR SCREEN. THE REMAINDER OF FLT WAS NORMAL.
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.