Aircraft on visual approach was not issued his IFR traffic until after radar separation was lost.

Attributes
ACN	109750
Time
Date	198904
Day	Wed
Local Time Of Day	1201 To 1800
Place
Locale Reference	atc facility : chd
State Reference	AZ
Altitude	msl bound lower : 6000 msl bound upper : 6800
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tracon : phx
Operator	other
Make Model Name	Military Transport
Flight Phase	descent other
Route In Use	approach : visual
Flight Plan	IFR
Aircraft 2
Operator	other
Make Model Name	Military Transport
Flight Phase	cruise other
Route In Use	arrival other
Flight Plan	IFR
Person 1
Affiliation	government : faa
Function	controller : approach
Qualification	controller : radar
Experience	controller military : 4 controller radar : 4
ASRS Report	109750
Person 2
Affiliation	government : faa
Function	controller : approach
Qualification	controller : developmental
Events
Anomaly	non adherence : published procedure non adherence : required legal separation
Independent Detector	other controllera
Resolutory Action	controller : issued new clearance none taken : insufficient time
Consequence	Other
Miss Distance	horizontal : 9000 vertical : 500
Supplementary
Primary Problem	ATC Human Performance
Air Traffic Incident	Operational Error

Narrative:

MTR Y was inbound for xray (the overhead approach). My trnee issued MTR Y an altitude of 6000'. MTR X was inbound on a TACAN approach waiting for a visibility approach clearance. MTR Y and MTR X closed to 3 mi when I issued traffic and told MTR X to hold his altitude. (He had reported at 6800'.) he leveled at 6500'.

Original NASA ASRS Text

Title: ACFT ON VISUAL APCH WAS NOT ISSUED HIS IFR TRAFFIC UNTIL AFTER RADAR SEPARATION WAS LOST.

Narrative: MTR Y WAS INBND FOR XRAY (THE OVERHEAD APCH). MY TRNEE ISSUED MTR Y AN ALT OF 6000'. MTR X WAS INBND ON A TACAN APCH WAITING FOR A VIS APCH CLRNC. MTR Y AND MTR X CLOSED TO 3 MI WHEN I ISSUED TFC AND TOLD MTR X TO HOLD HIS ALT. (HE HAD RPTED AT 6800'.) HE LEVELED AT 6500'.

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.