Instructor pilot of C172 reports near midair collision with lear jet on approach to bfi.

Attributes
ACN	577352
Time
Date	200303
Day	Mon
Local Time Of Day	1801 To 2400
Place
Locale Reference	airport : bfi.airport
State Reference	WA
Altitude	msl single value : 1800
Environment
Flight Conditions	VMC
Light	Night
Aircraft 1
Operator	general aviation : personal
Make Model Name	Skyhawk 172/Cutlass 172
Operating Under FAR Part	Part 91
Flight Phase	cruise : level
Flight Plan	None
Aircraft 2
Controlling Facilities	tower : bfi.tower
Operator	general aviation : personal
Make Model Name	Gates Learjet Corp Undifferentiated or Other Model
Operating Under FAR Part	Part 91
Flight Phase	descent : approach
Flight Plan	IFR
Person 1
Affiliation	other
Function	instruction : instructor oversight : pic
Qualification	pilot : instrument pilot : cfi pilot : commercial pilot : multi engine
Experience	flight time last 90 days : 90 flight time total : 1200 flight time type : 630
ASRS Report	577357
Person 2
Affiliation	other
Function	instruction : trainee
Events
Anomaly	conflict : nmac non adherence : far
Independent Detector	other flight crewa other flight crewb
Resolutory Action	flight crew : took evasive action
Miss Distance	horizontal : 200 vertical : 100
Supplementary
Problem Areas	Flight Crew Human Performance Chart Or Publication Airspace Structure
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

Student was under the hood. We were crossing west to east up near the space needle. I knew we were about to cross the localizer (runs north to south) for ILS runway 13R at bfi. I kept looking north, watching for any traffic that may be on the ILS. Unfortunately, this other plane must have been in the blind spot just above the left wing. He passed immediately in front of us, left to right. He took evasive action, climbing, banking, and we did a rapid descent. We were monitoring bfi tower (120.6) at the time, but were not talking to them, as we were north of class D airspace.

Original NASA ASRS Text

Title: INSTRUCTOR PLT OF C172 RPTS NMAC WITH LEAR JET ON APCH TO BFI.

Narrative: STUDENT WAS UNDER THE HOOD. WE WERE XING W TO E UP NEAR THE SPACE NEEDLE. I KNEW WE WERE ABOUT TO CROSS THE LOC (RUNS N TO S) FOR ILS RWY 13R AT BFI. I KEPT LOOKING N, WATCHING FOR ANY TFC THAT MAY BE ON THE ILS. UNFORTUNATELY, THIS OTHER PLANE MUST HAVE BEEN IN THE BLIND SPOT JUST ABOVE THE L WING. HE PASSED IMMEDIATELY IN FRONT OF US, L TO R. HE TOOK EVASIVE ACTION, CLBING, BANKING, AND WE DID A RAPID DSCNT. WE WERE MONITORING BFI TWR (120.6) AT THE TIME, BUT WERE NOT TALKING TO THEM, AS WE WERE N OF CLASS D AIRSPACE.

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.