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Widebody transport received TCASII alert on medium large transport, then approach controller called traffic. Aircraft passed with less than standard separation.
| Attributes | |
| ACN | 184382 |
| Time | |
| Date | 199107 |
| Day | Thu |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | atc facility : ckh airport : hnl |
| State Reference | HI |
| Altitude | msl bound lower : 7600 msl bound upper : 8000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tracon : hnl |
| Operator | common carrier : air carrier |
| Make Model Name | Widebody, Low Wing, 3 Turbojet Eng |
| Navigation In Use | Other |
| Flight Phase | descent other |
| Route In Use | enroute : on vectors |
| Flight Plan | IFR |
| Aircraft 2 | |
| Operator | common carrier : air carrier |
| Make Model Name | Medium Large Transport, Low Wing, 2 Turbojet Eng |
| Flight Phase | climbout : intermediate altitude |
| Route In Use | departure other |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : flight engineer pilot : commercial pilot : instrument |
| Experience | flight time last 90 days : 200 flight time total : 10000 flight time type : 2500 |
| ASRS Report | 184382 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | oversight : pic |
| Qualification | pilot : atp |
| Experience | flight time total : 17000 |
| ASRS Report | 184534 |
| Events | |
| Anomaly | conflict : airborne less severe non adherence : required legal separation |
| Independent Detector | aircraft equipment other aircraft equipment : unspecified other controllera other flight crewa |
| Resolutory Action | flight crew : took evasive action other |
| Consequence | Other |
| Miss Distance | horizontal : 9000 vertical : 400 |
| Supplementary | |
| Primary Problem | ATC Human Performance |
| Air Traffic Incident | Operational Error |
Narrative:
While copilot, we were descending as directed by honolulu approach just west of ckh VOR on a 260 heading. TA was received via our TCASII and soon thereafter approach also gave us an advisory. Medium large transport Y was at 1 O'clock moving to left and climbing (an medium large transport Y which we had visually). We soon received a TCASII RA to reduce our rate of descent, then 1 to initiate a climb. We passed a few hundred ft above the medium large transport Y altitude as it crossed our nose at 1-2 mi. We followed the TCASII directives even though the medium large transport Y was in sight the entire time. Had we not done so the separation would have been less. Approach control never gave us any further TA. We acknowledged their initial advisory with a 'have traffic in sight' but were still on our assigned heading and descent. Supplemental information from acn 184534: approach never gave either of us instructions to avoid each other. Supplemental information from acn 184729: TCAS was great. Worked as designed and kept us safe. I feel approach control should have alerted us sooner and given instructions for avoidance.
Original NASA ASRS Text
Title: WDB RECEIVED TCASII ALERT ON MLG, THEN APCH CTLR CALLED TFC. ACFT PASSED WITH LTSS.
Narrative: WHILE COPLT, WE WERE DSNDING AS DIRECTED BY HONOLULU APCH JUST W OF CKH VOR ON A 260 HDG. TA WAS RECEIVED VIA OUR TCASII AND SOON THEREAFTER APCH ALSO GAVE US AN ADVISORY. MLG Y WAS AT 1 O'CLOCK MOVING TO L AND CLBING (AN MLG Y WHICH WE HAD VISUALLY). WE SOON RECEIVED A TCASII RA TO REDUCE OUR RATE OF DSCNT, THEN 1 TO INITIATE A CLB. WE PASSED A FEW HUNDRED FT ABOVE THE MLG Y ALT AS IT CROSSED OUR NOSE AT 1-2 MI. WE FOLLOWED THE TCASII DIRECTIVES EVEN THOUGH THE MLG Y WAS IN SIGHT THE ENTIRE TIME. HAD WE NOT DONE SO THE SEPARATION WOULD HAVE BEEN LESS. APCH CTL NEVER GAVE US ANY FURTHER TA. WE ACKNOWLEDGED THEIR INITIAL ADVISORY WITH A 'HAVE TFC IN SIGHT' BUT WERE STILL ON OUR ASSIGNED HDG AND DSCNT. SUPPLEMENTAL INFO FROM ACN 184534: APCH NEVER GAVE EITHER OF US INSTRUCTIONS TO AVOID EACH OTHER. SUPPLEMENTAL INFO FROM ACN 184729: TCAS WAS GREAT. WORKED AS DESIGNED AND KEPT US SAFE. I FEEL APCH CTL SHOULD HAVE ALERTED US SOONER AND GIVEN INSTRUCTIONS FOR AVOIDANCE.
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.