Reported less than standard separation between DH8 and BE58. Incomplete application of procedures for DH8 to maintain visual separation with BE58. Reporter stated poor judgement on reporter's part. Operational error.

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Attributes
ACN	332305
Time
Date	199604
Day	Tue
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : orf
State Reference	VA
Altitude	msl bound lower : 2000 msl bound upper : 2000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tracon : orf
Operator	general aviation : personal
Make Model Name	Baron 58/58TC
Operating Under FAR Part	Part 91
Flight Phase	descent : approach
Route In Use	approach : visual
Flight Plan	IFR
Aircraft 2
Operator	common carrier : air carrier
Make Model Name	Dash 8 Series Undifferentiated or Other Model
Operating Under FAR Part	Part 121
Flight Phase	descent : approach
Route In Use	approach : visual
Flight Plan	IFR
Person 1
Affiliation	government : faa
Function	controller : approach
Qualification	controller : radar
Experience	controller military : 4 controller radar : 8
ASRS Report	332305
Person 2
Affiliation	Other
Function	flight crew : single pilot
Qualification	pilot : private pilot : instrument
Events
Anomaly	conflict : airborne less severe non adherence : required legal separation non adherence : published procedure
Independent Detector	other controllera
Resolutory Action	none taken : detected after the fact
Consequence	Other
Miss Distance	horizontal : 2000 vertical : 300
Supplementary
Primary Problem	ATC Human Performance
Air Traffic Incident	Operational Error

Narrative:

Busy traffic at 2 airports both under my control. I saw opportunity to fit BE58 in arrival sequence and tried to squeeze him in front of DH8. DH8 reported BE58 in sight but I never told DH8 to maintain visual separation. It was poor judgement on my part and incomplete application of procedures.

Original NASA ASRS Text

Title: RPTED LTSS BTWN DH8 AND BE58. INCOMPLETE APPLICATION OF PROCS FOR DH8 TO MAINTAIN VISUAL SEPARATION WITH BE58. RPTR STATED POOR JUDGEMENT ON RPTR'S PART. OPERROR.

Narrative: BUSY TFC AT 2 ARPTS BOTH UNDER MY CTL. I SAW OPPORTUNITY TO FIT BE58 IN ARR SEQUENCE AND TRIED TO SQUEEZE HIM IN FRONT OF DH8. DH8 RPTED BE58 IN SIGHT BUT I NEVER TOLD DH8 TO MAINTAIN VISUAL SEPARATION. IT WAS POOR JUDGEMENT ON MY PART AND INCOMPLETE APPLICATION OF PROCS.

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.