Flight crew of B757 on approach has TCASII RA. The second aircraft is sighted at 12 O'clock position...

Attributes
ACN	391485
Time
Date	199801
Day	Wed
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : msp
State Reference	MN
Altitude	msl bound lower : 2000 msl bound upper : 2000
Environment
Flight Conditions	IMC
Light	Daylight
Aircraft 1
Controlling Facilities	tower : msp
Operator	common carrier : air carrier
Make Model Name	B757 Undifferentiated or Other Model
Operating Under FAR Part	Part 121
Navigation In Use	Other Other
Flight Phase	descent : approach
Flight Plan	IFR
Aircraft 2
Make Model Name	Any Unknown or Unlisted Aircraft Manufacturer
Operating Under FAR Part	other : unknown
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Experience	flight time last 90 days : 240 flight time total : 20000 flight time type : 1200
ASRS Report	391485
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : instrument pilot : commercial
Events
Anomaly	conflict : nmac non adherence : far other anomaly other
Independent Detector	aircraft equipment other aircraft equipment : unspecified
Resolutory Action	flight crew : took evasive action
Consequence	faa : reviewed incident with flight crew
Miss Distance	horizontal : 0 vertical : 200

Narrative:

During approach to runway 12R at approximately 2000 ft MSL we received an RA on our TCASII with a target approximately 1 mi at our 12 O'clock position 400 ft below us. The first officer was flying and immediately disconnected the autoplt and commenced a climb. The target went 200 ft below us and we continued our approach to runway 12R and landed without incident. We asked the tower if they saw any traffic on the final behind us and they said they did not. We informed them of our RA and they said they would file a report.

Original NASA ASRS Text

Title: FLC OF B757 ON APCH HAS TCASII RA. THE SECOND ACFT IS SIGHTED AT 12 O'CLOCK POS AND 400 FT BELOW.

Narrative: DURING APCH TO RWY 12R AT APPROX 2000 FT MSL WE RECEIVED AN RA ON OUR TCASII WITH A TARGET APPROX 1 MI AT OUR 12 O'CLOCK POS 400 FT BELOW US. THE FO WAS FLYING AND IMMEDIATELY DISCONNECTED THE AUTOPLT AND COMMENCED A CLB. THE TARGET WENT 200 FT BELOW US AND WE CONTINUED OUR APCH TO RWY 12R AND LANDED WITHOUT INCIDENT. WE ASKED THE TWR IF THEY SAW ANY TFC ON THE FINAL BEHIND US AND THEY SAID THEY DID NOT. WE INFORMED THEM OF OUR RA AND THEY SAID THEY WOULD FILE A RPT.

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.

Flight crew of B757 on approach has TCASII RA. The second aircraft is sighted at 12 O'clock position and 400 ft below.