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Pilot of air carrier received TCASII RA during climb and took evasive action. Traffic was apparently an uncontrolled small aircraft.
| Attributes | |
| ACN | 403903 |
| Time | |
| Date | 199804 |
| Day | Thu |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | airport : sea |
| State Reference | WA |
| Altitude | msl bound lower : 11000 msl bound upper : 11000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tracon : sea tower : cdg |
| Operator | common carrier : air carrier |
| Make Model Name | B737-400 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | climbout : intermediate altitude |
| Route In Use | departure other |
| Flight Plan | IFR |
| Aircraft 2 | |
| Operator | general aviation : personal |
| Make Model Name | Any Unknown or Unlisted Aircraft Manufacturer |
| Operating Under FAR Part | Part 91 |
| Flight Phase | descent other |
| Flight Plan | VFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : commercial pilot : cfi pilot : atp pilot : instrument |
| Experience | flight time last 90 days : 170 flight time total : 6800 flight time type : 3000 |
| ASRS Report | 403903 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : instrument pilot : commercial |
| Events | |
| Anomaly | conflict : airborne less severe other anomaly other |
| Independent Detector | atc equipment other atc equipment : unspecified aircraft equipment other aircraft equipment : unspecified other controllera |
| Resolutory Action | flight crew : took evasive action |
| Consequence | Other |
| Miss Distance | horizontal : 300 vertical : 700 |
| Supplementary | |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | other |
Narrative:
Got TCASII TA, ATC called traffic at 12 O'clock. While transmitting, we got an RA, started evasive descent and turn, then saw visually a small high wing aircraft. TCASII worked as advertised, map presentation excellent.
Original NASA ASRS Text
Title: PLT OF ACR RECEIVED TCASII RA DURING CLB AND TOOK EVASIVE ACTION. TFC WAS APPARENTLY AN UNCTLED SMALL ACFT.
Narrative: GOT TCASII TA, ATC CALLED TFC AT 12 O'CLOCK. WHILE XMITTING, WE GOT AN RA, STARTED EVASIVE DSCNT AND TURN, THEN SAW VISUALLY A SMALL HIGH WING ACFT. TCASII WORKED AS ADVERTISED, MAP PRESENTATION EXCELLENT.
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.