 |
37000 Feet | Browse and search NASA's Aviation Safety Reporting System |
|
Small aircraft departed and flew through the final approach course and came in close proximity to an inbound light transport.
| Attributes | |
| ACN | 108783 |
| Time | |
| Date | 198904 |
| Day | Sat |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | atc facility : bfi |
| State Reference | WA |
| Altitude | msl bound lower : 1500 msl bound upper : 1500 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tower : bfi artcc : zoa |
| Operator | general aviation : corporate |
| Make Model Name | Light Transport, Low Wing, 2 Turbojet Eng |
| Flight Phase | descent other |
| Route In Use | arrival other |
| Flight Plan | IFR |
| Aircraft 2 | |
| Operator | general aviation : personal |
| Make Model Name | Small Aircraft, High Wing, 1 Eng, Fixed Gear |
| Flight Phase | cruise other |
| Route In Use | departure other |
| Flight Plan | None |
| Person 1 | |
| Affiliation | government : faa |
| Function | controller : local |
| Qualification | controller : non radar |
| ASRS Report | 108783 |
| Person 2 | |
| Affiliation | Other |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : instrument pilot : commercial |
| Events | |
| Anomaly | conflict : nmac other anomaly other |
| Independent Detector | other flight crewa |
| Resolutory Action | none taken : insufficient time |
| Consequence | Other |
| Miss Distance | horizontal : 0 vertical : 100 |
| Supplementary | |
| Primary Problem | Flight Crew Human Performance |
Narrative:
Small aircraft departed runway 13R on a right downwind departure. Aircraft was about 4 NM northwest of bfi when light transport (inbound on runway 13R ILS approach) reported something to the effect of, '...a (name) just flew under me by a hundred ft, and I object.' he added that, '...I'm just a little above the G/south. If I'd have been on it we'd have hit.' the small aircraft then reported that he was the 'other aircraft.' I asked the small aircraft if he had seen the light transport and he replied, 'just at the last minute.' normally, downwind departures stay well clear of the final approach path and are not a problem. I had been observing aircraft in the pattern out the window and had not seen the traffic on the BRITE.
Original NASA ASRS Text
Title: SMA DEPARTED AND FLEW THROUGH THE FINAL APCH COURSE AND CAME IN CLOSE PROX TO AN INBOUND LTT.
Narrative: SMA DEPARTED RWY 13R ON A RIGHT DOWNWIND DEP. ACFT WAS ABOUT 4 NM NW OF BFI WHEN LTT (INBND ON RWY 13R ILS APCH) RPTED SOMETHING TO THE EFFECT OF, '...A (NAME) JUST FLEW UNDER ME BY A HUNDRED FT, AND I OBJECT.' HE ADDED THAT, '...I'M JUST A LITTLE ABOVE THE G/S. IF I'D HAVE BEEN ON IT WE'D HAVE HIT.' THE SMA THEN RPTED THAT HE WAS THE 'OTHER ACFT.' I ASKED THE SMA IF HE HAD SEEN THE LTT AND HE REPLIED, 'JUST AT THE LAST MINUTE.' NORMALLY, DOWNWIND DEPS STAY WELL CLR OF THE FINAL APCH PATH AND ARE NOT A PROB. I HAD BEEN OBSERVING ACFT IN THE PATTERN OUT THE WINDOW AND HAD NOT SEEN THE TFC ON THE BRITE.
Data retrieved from NASA's ASRS site as of August 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.