<< >> NASA ASRS Report 157803, September 1990

Small aircraft on ILS approach takes evasive action to avoid light transport approaching from 6 O'clock position on ILS also.

Attributes
ACN	157803
Time
Date	199009
Day	Fri
Local Time Of Day	0601 To 1200
Place
Locale Reference	atc facility : edf
State Reference	AK
Altitude	msl bound lower : 1500 msl bound upper : 1500
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tracon : anc
Operator	general aviation : instructional
Make Model Name	Small Aircraft, High Wing, 1 Eng, Fixed Gear
Flight Phase	descent : approach
Flight Plan	None
Aircraft 2
Operator	other
Make Model Name	Light Transport, Low Wing, 2 Turbojet Eng
Navigation In Use	Other
Flight Phase	descent : approach
Flight Plan	None
Person 1
Affiliation	Other
Function	instruction : instructor
Qualification	pilot : cfi pilot : instrument pilot : commercial
Experience	flight time last 90 days : 250 flight time total : 1070 flight time type : 150
ASRS Report	157805
Person 2
Affiliation	Other
Function	instruction : trainee
Qualification	pilot : private
Events
Anomaly	conflict : airborne less severe
Independent Detector	other controllera other flight crewa
Resolutory Action	flight crew : took evasive action
Consequence	faa : reviewed incident with flight crew
Miss Distance	horizontal : 2500 vertical : 200
Supplementary
Primary Problem	ATC Human Performance
Air Traffic Incident	Inter Facility Coordination Failure
Situations
ATC Facility	procedure or policy : unspecified

Narrative:

I was giving instrument instruction to an ATP candidate in an small aircraft. We were on the ILS approach to runway 5 edf when the final controller called traffic at 6 O'clock 1 mi converging. I looked behind us and called no contact. The controller called traffic less then 1 mi 6 O'clock still converging. At this point I took control of the plane and turned right off the final approach course. We returned to merrill field for landing. The frequency of the final controller was 134.9. My student called for edf after landing and was told that the plane behind us was an FAA light transport doing flight checks on the ILS system. He was not in radio contact with the edf controller.

Related reports:

• EMS helicopter aircraft pilot took evasive action to avoid a...

	Enter your search terms Submit search form
	Web www.37000feet.com

Original NASA ASRS Text

Title: SMA ON ILS APCH TAKES EVASIVE ACTION TO AVOID LTT APCHING FROM 6 O'CLOCK POSITION ON ILS ALSO.

Narrative: I WAS GIVING INSTRUMENT INSTRUCTION TO AN ATP CANDIDATE IN AN SMA. WE WERE ON THE ILS APCH TO RWY 5 EDF WHEN THE FINAL CTLR CALLED TFC AT 6 O'CLOCK 1 MI CONVERGING. I LOOKED BEHIND US AND CALLED NO CONTACT. THE CTLR CALLED TFC LESS THEN 1 MI 6 O'CLOCK STILL CONVERGING. AT THIS POINT I TOOK CTL OF THE PLANE AND TURNED R OFF THE FINAL APCH COURSE. WE RETURNED TO MERRILL FIELD FOR LNDG. THE FREQ OF THE FINAL CTLR WAS 134.9. MY STUDENT CALLED FOR EDF AFTER LNDG AND WAS TOLD THAT THE PLANE BEHIND US WAS AN FAA LTT DOING FLT CHKS ON THE ILS SYS. HE WAS NOT IN RADIO CONTACT WITH THE EDF CTLR.

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.