<< >> NASA ASRS Report 119525, August 1989

Small aircraft X VFR on radar vector failed to see small transport Y. Pilot filed near midair collision.

Attributes
ACN	119525
Time
Date	198908
Day	Thu
Local Time Of Day	1201 To 1800
Place
Locale Reference	atc facility : mht
State Reference	NH
Altitude	msl bound lower : 4500 msl bound upper : 4500
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tracon : mht
Make Model Name	Small Aircraft, Low Wing, 1 Eng, Retractable Gear
Flight Phase	cruise other
Route In Use	enroute : on vectors
Flight Plan	VFR
Aircraft 2
Make Model Name	Small Transport, Low Wing, 2 Recip Eng
Person 1
Affiliation	government : faa
Function	controller : approach
Qualification	controller : radar
ASRS Report	119525
Person 2
Affiliation	Other
Function	flight crew : single pilot
Events
Anomaly	conflict : nmac non adherence : clearance non adherence : far
Independent Detector	other flight crewa
Resolutory Action	none taken : detected after the fact
Consequence	Other
Miss Distance	horizontal : 6000 vertical : 0
Supplementary
Primary Problem	Flight Crew Human Performance

Narrative:

I was vectoring an small aircraft X for a practice ILS approach (VFR). The aircraft was told to maintain VFR at all times. The aircraft was on a 280 degree heading 2 mi east of manchester airport when the pilot asked if I saw an small transport Y that just past in front of him. I said that I saw a target about 1 mi south of his position southbound (the pilot filed a near miss) and that I did not see it prior.

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Original NASA ASRS Text

Title: SMA X VFR ON RADAR VECTOR FAILED TO SEE SMT Y. PLT FILED NMAC.

Narrative: I WAS VECTORING AN SMA X FOR A PRACTICE ILS APCH (VFR). THE ACFT WAS TOLD TO MAINTAIN VFR AT ALL TIMES. THE ACFT WAS ON A 280 DEG HDG 2 MI E OF MANCHESTER ARPT WHEN THE PLT ASKED IF I SAW AN SMT Y THAT JUST PAST IN FRONT OF HIM. I SAID THAT I SAW A TARGET ABOUT 1 MI S OF HIS POSITION SBND (THE PLT FILED A NEAR MISS) AND THAT I DID NOT SEE IT PRIOR.

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.