Potential conflict occurs during simultaneous arrival ILS approachs during radar vectoring.

Attributes
ACN	246461
Time
Date	199307
Day	Thu
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : atl
State Reference	GA
Altitude	msl bound lower : 4000 msl bound upper : 4000
Environment
Flight Conditions	Marginal
Light	Daylight
Aircraft 1
Controlling Facilities	tracon : atl
Operator	common carrier : air carrier
Make Model Name	Widebody, Low Wing, 3 Turbojet Eng
Navigation In Use	Other Other
Flight Phase	cruise other descent : approach
Route In Use	enroute : on vectors
Flight Plan	IFR
Aircraft 2
Operator	common carrier : air carrier
Make Model Name	Large Transport, Low Wing, 3 Turbojet Eng
Flight Phase	descent : approach
Route In Use	enroute : on vectors
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : second officer
Qualification	pilot : instrument pilot : flight engineer pilot : atp
Experience	flight time last 90 days : 200 flight time total : 4000 flight time type : 800
ASRS Report	246461
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Events
Anomaly	conflict : airborne less severe non adherence : published procedure other anomaly other other spatial deviation
Independent Detector	aircraft equipment other aircraft equipment : unspecified
Resolutory Action	flight crew : returned to intended course or assigned course flight crew : took evasive action
Consequence	Other
Miss Distance	horizontal : 1000 vertical : 500
Supplementary
Primary Problem	ATC Human Performance
Air Traffic Incident	other

Narrative:

While on radar vectors to runway 27L localizer, we had a TCASII advisory indicating traffic above us and at about the 2 O'clock position. We had the traffic in sight. Other aircraft climbed, and was apparently on localizer for runway 26R. ATC gave us a late turn to intercept 27L localizer, resulting in TCASII advisory and a slight overshoot for us. Prior to this event, ATC had made a number of attempts to contact another aircraft, which could have resulted in them giving us our turn to final later than normal.

Original NASA ASRS Text

Title: POTENTIAL CONFLICT OCCURS DURING SIMULTANEOUS ARR ILS APCHS DURING RADAR VECTORING.

Narrative: WHILE ON RADAR VECTORS TO RWY 27L LOC, WE HAD A TCASII ADVISORY INDICATING TFC ABOVE US AND AT ABOUT THE 2 O'CLOCK POS. WE HAD THE TFC IN SIGHT. OTHER ACFT CLBED, AND WAS APPARENTLY ON LOC FOR RWY 26R. ATC GAVE US A LATE TURN TO INTERCEPT 27L LOC, RESULTING IN TCASII ADVISORY AND A SLIGHT OVERSHOOT FOR US. PRIOR TO THIS EVENT, ATC HAD MADE A NUMBER OF ATTEMPTS TO CONTACT ANOTHER ACFT, WHICH COULD HAVE RESULTED IN THEM GIVING US OUR TURN TO FINAL LATER THAN NORMAL.

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.