<< >> NASA ASRS Report 246381, July 1993

Hazy day with air carrier widebody transport cleared for visual, airport in sight, overshoots localizer and creates a potential conflict with simultaneous arrival. Flight crew deviation in heading track deviation.

Attributes
ACN	246381
Time
Date	199307
Day	Thu
Local Time Of Day	1801 To 2400
Place
Locale Reference	airport : atl
State Reference	GA
Altitude	msl bound lower : 4000 msl bound upper : 4600
Environment
Flight Conditions	Marginal
Light	Daylight
Aircraft 1
Controlling Facilities	tracon : atl tower : tul
Operator	common carrier : air carrier
Make Model Name	Widebody, Low Wing, 3 Turbojet Eng
Navigation In Use	Other
Flight Phase	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 : first officer
Qualification	pilot : atp
Experience	flight time last 90 days : 100 flight time total : 9000 flight time type : 800
ASRS Report	246381
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Events
Anomaly	conflict : airborne less severe non adherence : clearance non adherence : required legal separation other anomaly other other spatial deviation
Independent Detector	aircraft equipment other aircraft equipment : unspecified
Resolutory Action	flight crew : took evasive action flight crew : returned to intended course or assigned course flight crew : became reoriented
Consequence	Other
Miss Distance	horizontal : 4500 vertical : 600
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation
Situations
ATC Facility	procedure or policy : unspecified

Narrative:

We were cleared to intercept the localizer at atl approaching from the north in a descent to 4000 ft. At about 4000 ft controller told us to maintain 500 ft. At that time, I stated that we were cleared to 4000 ft but started to climb to 5000 and noticed we had gone through the localizer as the controller kept asking us if we had the filed. We never stated the field was in sight as we were looking into the sun and it was very hazy. Almost simultaneously we received an RA on TCASII stating traffic below us and the controller stated that he realized that he had cleared us to 4000 ft. At this time, we were at 4600 ft. I wrapped up the airplane in a turn toward the runway and observed an large transport approximately 200 ft below us on a parallel approach to 27 at atl. The controller kept on us to call the field in sight during this only incident. I feel the controller got wrapped up in trying to reduce separation and initiate a visual approach in less than ideal VMC, and, as a result, got behind in the control of the aircraft approach to atl.

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Original NASA ASRS Text

Title: HAZY DAY WITH ACR WDB CLRED FOR VISUAL, ARPT IN SIGHT, OVERSHOOTS LOC AND CREATES A POTENTIAL CONFLICT WITH SIMULTANEOUS ARR. FLC DEV IN HDG TRACK DEV.

Narrative: WE WERE CLRED TO INTERCEPT THE LOC AT ATL APCHING FROM THE N IN A DSCNT TO 4000 FT. AT ABOUT 4000 FT CTLR TOLD US TO MAINTAIN 500 FT. AT THAT TIME, I STATED THAT WE WERE CLRED TO 4000 FT BUT STARTED TO CLB TO 5000 AND NOTICED WE HAD GONE THROUGH THE LOC AS THE CTLR KEPT ASKING US IF WE HAD THE FILED. WE NEVER STATED THE FIELD WAS IN SIGHT AS WE WERE LOOKING INTO THE SUN AND IT WAS VERY HAZY. ALMOST SIMULTANEOUSLY WE RECEIVED AN RA ON TCASII STATING TFC BELOW US AND THE CTLR STATED THAT HE REALIZED THAT HE HAD CLRED US TO 4000 FT. AT THIS TIME, WE WERE AT 4600 FT. I WRAPPED UP THE AIRPLANE IN A TURN TOWARD THE RWY AND OBSERVED AN LGT APPROX 200 FT BELOW US ON A PARALLEL APCH TO 27 AT ATL. THE CTLR KEPT ON US TO CALL THE FIELD IN SIGHT DURING THIS ONLY INCIDENT. I FEEL THE CTLR GOT WRAPPED UP IN TRYING TO REDUCE SEPARATION AND INITIATE A VISUAL APCH IN LESS THAN IDEAL VMC, AND, AS A RESULT, GOT BEHIND IN THE CTL OF THE ACFT APCH TO ATL.

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.