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B757 makes TCASII evasive maneuver when turning base to final runway 16R from an MD80 on the opposite side for runway 16L under S46 control.
| Attributes | |
| ACN | 519863 |
| Time | |
| Date | 200108 |
| Day | Wed |
| Local Time Of Day | 1801 To 2400 |
| Place | |
| Locale Reference | navaid : sea.vortac |
| State Reference | WA |
| Altitude | msl single value : 4200 |
| Environment | |
| Flight Conditions | Mixed |
| Light | Dusk |
| Aircraft 1 | |
| Controlling Facilities | tracon : s46.tracon artcc : zau.artcc |
| Operator | common carrier : air carrier |
| Make Model Name | B757-200 |
| Operating Under FAR Part | Part 121 |
| Navigation In Use | other |
| Flight Phase | descent : approach |
| Route In Use | arrival : on vectors |
| Flight Plan | IFR |
| Aircraft 2 | |
| Controlling Facilities | tracon : s46.tracon |
| Operator | common carrier : air carrier |
| Make Model Name | MD-80 Series (DC-9-80) Undifferentiated or Other Model |
| Operating Under FAR Part | Part 121 |
| Flight Phase | descent : approach |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 150 flight time total : 19600 flight time type : 800 |
| ASRS Report | 519863 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Events | |
| Anomaly | conflict : airborne critical inflight encounter : weather non adherence : published procedure non adherence : required legal separation |
| Independent Detector | aircraft equipment : tcas other flight crewa |
| Resolutory Action | flight crew : took evasive action |
| Miss Distance | horizontal : 5000 vertical : 0 |
| Supplementary | |
| Problem Areas | Airspace Structure ATC Human Performance Weather |
| Primary Problem | ATC Human Performance |
| Air Traffic Incident | Operational Error |
Narrative:
TCASII RA. RA given as we descended to 4000 ft, talking to approach control. Head-to-head closure with MD80, landing runway 16R. Aircraft were both turning south to join final approach, my aircraft runway 16L. Controller was unnecessarily rushing the procedure. We were in clouds just prior to point of closest contact.
Original NASA ASRS Text
Title: B757 MAKES TCASII EVASIVE MANEUVER WHEN TURNING BASE TO FINAL RWY 16R FROM AN MD80 ON THE OPPOSITE SIDE FOR RWY 16L UNDER S46 CTL.
Narrative: TCASII RA. RA GIVEN AS WE DSNDED TO 4000 FT, TALKING TO APCH CTL. HEAD-TO-HEAD CLOSURE WITH MD80, LNDG RWY 16R. ACFT WERE BOTH TURNING S TO JOIN FINAL APCH, MY ACFT RWY 16L. CTLR WAS UNNECESSARILY RUSHING THE PROC. WE WERE IN CLOUDS JUST PRIOR TO POINT OF CLOSEST CONTACT.
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.