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Atx X had near midair collision with aircraft Y. See and avoid concept. Aircraft Y flying at night without lights. Pilot deviation.
| Attributes | |
| ACN | 163004 |
| Time | |
| Date | 199010 |
| Day | Tue |
| Local Time Of Day | 1801 To 2400 |
| Place | |
| Locale Reference | atc facility : alw |
| State Reference | WA |
| Altitude | msl bound lower : 6500 msl bound upper : 6500 |
| Environment | |
| Flight Conditions | VMC |
| Light | Night |
| Aircraft 1 | |
| Controlling Facilities | tracon : alw tower : sdm |
| Operator | common carrier : air taxi |
| Make Model Name | Medium Transport |
| Flight Phase | descent : approach |
| Flight Plan | VFR |
| Aircraft 2 | |
| Operator | general aviation : personal |
| Make Model Name | Small Aircraft, High Wing, 1 Eng, Fixed Gear |
| Flight Phase | cruise other |
| Flight Plan | VFR |
| Person 1 | |
| Affiliation | government : faa |
| Function | controller : approach |
| Qualification | controller : radar |
| Experience | controller military : 8 controller radar : 2 |
| ASRS Report | 163004 |
| Person 2 | |
| Affiliation | company : air taxi |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Events | |
| Anomaly | conflict : nmac |
| Independent Detector | other flight crewa |
| Resolutory Action | flight crew : took evasive action |
| Consequence | Other |
| Miss Distance | horizontal : 0 vertical : 200 |
| Supplementary | |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | Pilot Deviation |
| Situations | |
| Navigational Aid | Unspecified |
Narrative:
Atx X took evasive action from aircraft Y. The ASR-9 at pasco (tricities approach) has intermittent and erratic primary radar. I saw no primary correlated target at the acfts position. The aircraft Y had no lights on and I feel this also was a cause. The region is cognizant of the problem and is currently working on it trying to get it to correct specifications. Callback conversation with reporter revealed the following information. Reporter experience, 2 yrs radar, 8 yrs military. Miss distance 200' vertical, 0 horizontal. Atx X took evasive action. Situation; ASR-9 poor primary target coverage. Notamed for beacon only sep. FAA is replacing the ASR-9 with an ASR-8 in 30 days.
Original NASA ASRS Text
Title: ATX X HAD NMAC WITH ACFT Y. SEE AND AVOID CONCEPT. ACFT Y FLYING AT NIGHT WITHOUT LIGHTS. PLTDEV.
Narrative: ATX X TOOK EVASIVE ACTION FROM ACFT Y. THE ASR-9 AT PASCO (TRICITIES APCH) HAS INTERMITTENT AND ERRATIC PRIMARY RADAR. I SAW NO PRIMARY CORRELATED TARGET AT THE ACFTS POS. THE ACFT Y HAD NO LIGHTS ON AND I FEEL THIS ALSO WAS A CAUSE. THE REGION IS COGNIZANT OF THE PROB AND IS CURRENTLY WORKING ON IT TRYING TO GET IT TO CORRECT SPECS. CALLBACK CONVERSATION WITH RPTR REVEALED THE FOLLOWING INFO. RPTR EXPERIENCE, 2 YRS RADAR, 8 YRS MIL. MISS DISTANCE 200' VERT, 0 HORIZ. ATX X TOOK EVASIVE ACTION. SITUATION; ASR-9 POOR PRIMARY TARGET COVERAGE. NOTAMED FOR BEACON ONLY SEP. FAA IS REPLACING THE ASR-9 WITH AN ASR-8 IN 30 DAYS.
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.