Flight crew of an medium large transport air carrier aircraft stopped the descent momentarily due to a TCASII RA and the visual sighting of the other aircraft on a visual approach to parallel runways.

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Attributes
ACN	243748
Time
Date	199305
Day	Mon
Local Time Of Day	1801 To 2400
Place
Locale Reference	airport : atl
State Reference	GA
Altitude	msl bound lower : 3850 msl bound upper : 3850
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tracon : atl
Operator	common carrier : air carrier
Make Model Name	Medium Large Transport, Low Wing, 2 Turbojet Eng
Navigation In Use	Other
Flight Phase	descent other
Route In Use	approach : visual arrival other
Flight Plan	IFR
Aircraft 2
Operator	common carrier : air carrier
Make Model Name	Widebody, Low Wing, 2 Turbojet Eng
Navigation In Use	Other Other
Flight Phase	descent other
Route In Use	approach : visual arrival other
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : atp
Experience	flight time last 90 days : 180 flight time total : 4300 flight time type : 850
ASRS Report	243748
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Events
Anomaly	conflict : airborne less severe other anomaly other
Independent Detector	aircraft equipment other aircraft equipment : unspecified other flight crewa
Resolutory Action	flight crew : returned to intended course or assigned course flight crew : took evasive action
Consequence	Other
Miss Distance	horizontal : 6000 vertical : 350
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation other

Narrative:

We were intercepting the final approach localizer 26R course from the north side on a shallow intercept angle, from above glidepath. Captain noticed aircraft adjacent to, lower, and south of us, obviously flying a visual parallel approach to atl 27L. Captain asked approach control about that aircraft status since he was slightly converging with us. Approach control stated that was okay because the aircraft was going to a different runway. We monitored the aircraft visually and on TCASII while continuing our descent on the glidepath, slightly north of course. Descending through 4000 ft MSL, the other aircraft remained close to us and (on TCASII) appeared to be at 3500 ft MSL. I arrested descent rate and leveled at 3850 ft MSL upon captain's request. Tower also called to level off and TCASII alerted RA.

Original NASA ASRS Text

Title: FLC OF AN MLG ACR ACFT STOPPED THE DSCNT MOMENTARILY DUE TO A TCASII RA AND THE VISUAL SIGHTING OF THE OTHER ACFT ON A VISUAL APCH TO PARALLEL RWYS.

Narrative: WE WERE INTERCEPTING THE FINAL APCH LOC 26R COURSE FROM THE N SIDE ON A SHALLOW INTERCEPT ANGLE, FROM ABOVE GLIDEPATH. CAPT NOTICED ACFT ADJACENT TO, LOWER, AND S OF US, OBVIOUSLY FLYING A VISUAL PARALLEL APCH TO ATL 27L. CAPT ASKED APCH CTL ABOUT THAT ACFT STATUS SINCE HE WAS SLIGHTLY CONVERGING WITH US. APCH CTL STATED THAT WAS OKAY BECAUSE THE ACFT WAS GOING TO A DIFFERENT RWY. WE MONITORED THE ACFT VISUALLY AND ON TCASII WHILE CONTINUING OUR DSCNT ON THE GLIDEPATH, SLIGHTLY N OF COURSE. DSNDING THROUGH 4000 FT MSL, THE OTHER ACFT REMAINED CLOSE TO US AND (ON TCASII) APPEARED TO BE AT 3500 FT MSL. I ARRESTED DSCNT RATE AND LEVELED AT 3850 FT MSL UPON CAPT'S REQUEST. TWR ALSO CALLED TO LEVEL OFF AND TCASII ALERTED RA.

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.