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Flight crew of a B767-300 climbed and turned, during an arrival STAR, in response to a TCASII RA from another aircraft climbing toward their position and altitude.
| Attributes | |
| ACN | 461848 |
| Time | |
| Date | 200002 |
| Day | Wed |
| Local Time Of Day | 1801 To 2400 |
| Place | |
| Locale Reference | navaid : sea.vortac |
| State Reference | WA |
| Altitude | msl bound lower : 10000 msl bound upper : 11200 |
| Environment | |
| Flight Conditions | IMC |
| Light | Night |
| Aircraft 1 | |
| Controlling Facilities | tower : arb.tower |
| Operator | common carrier : air carrier |
| Make Model Name | B767-300 and 300 ER |
| Operating Under FAR Part | Part 121 |
| Navigation In Use | other vortac |
| Flight Phase | descent : intermediate altitude |
| Route In Use | arrival star : chins.chins 2 |
| Flight Plan | IFR |
| Aircraft 2 | |
| Controlling Facilities | tracon : s46.tracon |
| Operator | common carrier : air carrier |
| Make Model Name | Commercial Fixed Wing |
| Operating Under FAR Part | Part 121 |
| Flight Phase | climbout : vacating altitude |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : atp pilot : commercial |
| Experience | flight time last 90 days : 200 flight time total : 10000 flight time type : 1200 |
| ASRS Report | 461848 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 215 flight time total : 19830 flight time type : 1500 |
| ASRS Report | 462411 |
| Events | |
| Anomaly | altitude deviation : excursion from assigned altitude conflict : airborne less severe |
| Independent Detector | aircraft equipment : tcas other flight crewa other flight crewb |
| Resolutory Action | flight crew : took precautionary avoidance action |
| Consequence | faa : reviewed incident with flight crew |
| Miss Distance | horizontal : 15000 vertical : 0 |
| Supplementary | |
| Problem Areas | Flight Crew Human Performance ATC Human Performance |
| Primary Problem | ATC Human Performance |
Narrative:
Approaching aubrn fix on chins 2 arrival into seattle (tacoma international) airport, got TCASII TA, followed shortly after by an RA and noted an aircraft climbing slowly towards our altitude at our 11 O'clock position within 5 mi and within 500 ft of our altitude. When TCASII RA occurred, we took evasive action by climbing 1200 ft (to 11200 ft MSL) and turning right approximately 45 degrees. During our climbing turn, we advised ATC of our actions. During climb the RA/conflict ceased (as the other aircraft passed behind us) and we descended back down to 10000 ft MSL and turned back towards aubrn fix to resume the chins 2 arrival -- notifying ATC again of our current actions. When queried by us, the controller told us the conflicting aircraft was an air carrier Y flight. No other information was offered.
Original NASA ASRS Text
Title: FLC OF A B767-300 CLBED AND TURNED, DURING AN ARR STAR, IN RESPONSE TO A TCASII RA FROM ANOTHER ACFT CLBING TOWARD THEIR POS AND ALT.
Narrative: APCHING AUBRN FIX ON CHINS 2 ARR INTO SEATTLE (TACOMA INTL) ARPT, GOT TCASII TA, FOLLOWED SHORTLY AFTER BY AN RA AND NOTED AN ACFT CLBING SLOWLY TOWARDS OUR ALT AT OUR 11 O'CLOCK POS WITHIN 5 MI AND WITHIN 500 FT OF OUR ALT. WHEN TCASII RA OCCURRED, WE TOOK EVASIVE ACTION BY CLBING 1200 FT (TO 11200 FT MSL) AND TURNING R APPROX 45 DEGS. DURING OUR CLBING TURN, WE ADVISED ATC OF OUR ACTIONS. DURING CLB THE RA/CONFLICT CEASED (AS THE OTHER ACFT PASSED BEHIND US) AND WE DSNDED BACK DOWN TO 10000 FT MSL AND TURNED BACK TOWARDS AUBRN FIX TO RESUME THE CHINS 2 ARR -- NOTIFYING ATC AGAIN OF OUR CURRENT ACTIONS. WHEN QUERIED BY US, THE CTLR TOLD US THE CONFLICTING ACFT WAS AN ACR Y FLT. NO OTHER INFO WAS OFFERED.
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.