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While on fossl arrival to phx, DHC8 flight crew initiates evasive maneuver to avoid a twin turboprop aircraft.
| Attributes | |
| ACN | 495725 |
| Time | |
| Date | 200012 |
| Day | Fri |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | navaid : pxr.vortac |
| State Reference | AZ |
| Altitude | msl bound lower : 8000 msl bound upper : 9000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tracon : p50.tracon tracon : fat.tracon |
| Operator | common carrier : air carrier |
| Make Model Name | Dash 8-200 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | cruise : level |
| Route In Use | arrival star : fossil |
| Flight Plan | IFR |
| Aircraft 2 | |
| Controlling Facilities | tracon : p50.tracon |
| Make Model Name | Any Unknown or Unlisted Aircraft Manufacturer |
| Flight Phase | cruise : level |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : cfi pilot : commercial pilot : multi engine |
| Experience | flight time last 90 days : 150 flight time total : 3200 flight time type : 1100 |
| ASRS Report | 495725 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : multi engine pilot : instrument pilot : commercial |
| Events | |
| Anomaly | altitude deviation : excursion from assigned altitude conflict : airborne less severe non adherence : published procedure non adherence : required legal separation |
| Independent Detector | aircraft equipment : tcas |
| Resolutory Action | controller : issued new clearance controller : issued advisory flight crew : took evasive action |
| Miss Distance | horizontal : 6000 vertical : 700 |
| Supplementary | |
| Problem Areas | ATC Human Performance |
| Primary Problem | ATC Human Performance |
| Air Traffic Incident | Operational Error |
Narrative:
Level at 9000 ft assigned by ATC on fossil 5 approach arrival, noted traffic on TCASII at 12 O'clock position, at same altitude, approximately 5 mi out, opposite direction. At approximately 2 mi. We initiated descent. TCASII gave advisory -- 2000 FPM descent. We advised ATC of descent, who cleared us to 8000 ft and then advised of opposite traffic. Opposite traffic was spotted on descent. Traffic passed 700 ft above and approximately 1 mi off.
Original NASA ASRS Text
Title: WHILE ON FOSSL ARR TO PHX, DHC8 FLC INITIATES EVASIVE MANEUVER TO AVOID A TWIN TURBOPROP ACFT.
Narrative: LEVEL AT 9000 FT ASSIGNED BY ATC ON FOSSIL 5 APCH ARR, NOTED TFC ON TCASII AT 12 O'CLOCK POS, AT SAME ALT, APPROX 5 MI OUT, OPPOSITE DIRECTION. AT APPROX 2 MI. WE INITIATED DSCNT. TCASII GAVE ADVISORY -- 2000 FPM DSCNT. WE ADVISED ATC OF DSCNT, WHO CLRED US TO 8000 FT AND THEN ADVISED OF OPPOSITE TFC. OPPOSITE TFC WAS SPOTTED ON DSCNT. TFC PASSED 700 FT ABOVE AND APPROX 1 MI OFF.
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.