A320 crew had multiple TCASII TA's and requested a pattern extension at tus.

Attributes
ACN	468680
Time
Date	200004
Day	Wed
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : tus.airport
State Reference	AZ
Altitude	msl single value : 3000
Environment
Flight Conditions	VMC
Weather Elements	other
Light	Daylight
Aircraft 1
Operator	common carrier : air carrier
Make Model Name	A320
Operating Under FAR Part	Part 121
Navigation In Use	other
Flight Phase	descent : approach
Route In Use	approach : visual
Flight Plan	IFR
Aircraft 2
Make Model Name	Small Aircraft
Operating Under FAR Part	Part 91
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : flight engineer pilot : atp
Experience	flight time last 90 days : 230 flight time total : 14000 flight time type : 1100
ASRS Report	468680
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : multi engine pilot : instrument pilot : commercial
Events
Anomaly	conflict : airborne less severe other spatial deviation
Independent Detector	other flight crewa other flight crewb
Resolutory Action	flight crew : became reoriented other
Supplementary
Problem Areas	ATC Human Performance Airport Flight Crew Human Performance
Primary Problem	Flight Crew Human Performance

Narrative:

First trip to tus for both cockpit crew members. WX was not a factor (day VFR). Approached tus from the southeast over sso. Downwind 8000 ft for runway 11L tus. Responded to tus tower we had runway in sight. Tus tower cleared us for visual runway 11L. Seeing that we were a little high, asked tower if we could extend downwind. Approval was given, but not to extend too far because of additional inbound traffic. Turning base received a TCASII TA. While looking for traffic continued to turn base. Spotted traffic (civilian single engine) no factor. Having turned further on base than I realized and looking over my shoulder for the runway I picked up runway at davis monthan. Then received another TA (TCASII). Traffic spotted (civilian single engine) no factor. With angling approach and xchking EFIS map, realized it was not tus runway 11L. Instead of making a sharp right turn to line up with tus runway 11L, I asked for a left turn back downwind. Made visual approach and landing at tus runway 11L. Contributing factors: first time to airport, multiple TA's and tunnel vision. One possible solution would be on initial check-in with approach control and tower, stating first time to airport. This would be for cockpit crews landing at new airports for the first time, whereby keying controllers to allow a little more spacing, preventing slam dunks and providing a third set of eyes to first timers.

Original NASA ASRS Text

Title: A320 CREW HAD MULTIPLE TCASII TA'S AND REQUESTED A PATTERN EXTENSION AT TUS.

Narrative: FIRST TRIP TO TUS FOR BOTH COCKPIT CREW MEMBERS. WX WAS NOT A FACTOR (DAY VFR). APCHED TUS FROM THE SE OVER SSO. DOWNWIND 8000 FT FOR RWY 11L TUS. RESPONDED TO TUS TWR WE HAD RWY IN SIGHT. TUS TWR CLRED US FOR VISUAL RWY 11L. SEEING THAT WE WERE A LITTLE HIGH, ASKED TWR IF WE COULD EXTEND DOWNWIND. APPROVAL WAS GIVEN, BUT NOT TO EXTEND TOO FAR BECAUSE OF ADDITIONAL INBOUND TFC. TURNING BASE RECEIVED A TCASII TA. WHILE LOOKING FOR TFC CONTINUED TO TURN BASE. SPOTTED TFC (CIVILIAN SINGLE ENG) NO FACTOR. HAVING TURNED FURTHER ON BASE THAN I REALIZED AND LOOKING OVER MY SHOULDER FOR THE RWY I PICKED UP RWY AT DAVIS MONTHAN. THEN RECEIVED ANOTHER TA (TCASII). TFC SPOTTED (CIVILIAN SINGLE ENG) NO FACTOR. WITH ANGLING APCH AND XCHKING EFIS MAP, REALIZED IT WAS NOT TUS RWY 11L. INSTEAD OF MAKING A SHARP R TURN TO LINE UP WITH TUS RWY 11L, I ASKED FOR A L TURN BACK DOWNWIND. MADE VISUAL APCH AND LNDG AT TUS RWY 11L. CONTRIBUTING FACTORS: FIRST TIME TO ARPT, MULTIPLE TA'S AND TUNNEL VISION. ONE POSSIBLE SOLUTION WOULD BE ON INITIAL CHK-IN WITH APCH CTL AND TWR, STATING FIRST TIME TO ARPT. THIS WOULD BE FOR COCKPIT CREWS LNDG AT NEW ARPTS FOR THE FIRST TIME, WHEREBY KEYING CTLRS TO ALLOW A LITTLE MORE SPACING, PREVENTING SLAM DUNKS AND PROVIDING A THIRD SET OF EYES TO FIRST TIMERS.

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.