An A319 first officer has concerns about not hearing the assigned runway.

Attributes
ACN	525990
Time
Date	200110
Day	Mon
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : boi.airport
State Reference	ID
Altitude	agl single value : 0
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Operator	common carrier : air carrier
Make Model Name	A319
Flight Phase	landing : roll
Route In Use	approach : visual approach : straight in
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : atp
Experience	flight time last 90 days : 140 flight time total : 7000 flight time type : 20
ASRS Report	525990
Events
Anomaly	other anomaly other
Resolutory Action	none taken : detected after the fact
Supplementary
Problem Areas	Flight Crew Human Performance
Primary Problem	Ambiguous

Narrative:

We were cleared straight-in visual at boi. I had briefed the captain on runway 28R, which he suggested would be the landing runway. I am new to the aircraft and this was my first trip into boi. As I turned a 10 mi final, I realized I had not specifically heard the runway assignment. I asked the captain and he confidently said runway 28R. I continued for runway 28R. At our final landing check, the captain mentioned runway 28L. I again said 'runway 28R?' he said 'that wasn't a test, you're correct runway 28R.' we made an uneventful landing. Tower requested we make the next right and contact ground. There was a small jet holding short of our runway to our left between the runways. Ground cleared us to the gate. I'm fairly confident this was a normal operation, but I still didn't hear the clearance runway. I should have requested the captain confirm with tower so I could have heard the clearance and not just taken his word. This would prevent second guessing and these reports after the fact.

Original NASA ASRS Text

Title: AN A319 FO HAS CONCERNS ABOUT NOT HEARING THE ASSIGNED RWY.

Narrative: WE WERE CLRED STRAIGHT-IN VISUAL AT BOI. I HAD BRIEFED THE CAPT ON RWY 28R, WHICH HE SUGGESTED WOULD BE THE LNDG RWY. I AM NEW TO THE ACFT AND THIS WAS MY FIRST TRIP INTO BOI. AS I TURNED A 10 MI FINAL, I REALIZED I HAD NOT SPECIFICALLY HEARD THE RWY ASSIGNMENT. I ASKED THE CAPT AND HE CONFIDENTLY SAID RWY 28R. I CONTINUED FOR RWY 28R. AT OUR FINAL LNDG CHK, THE CAPT MENTIONED RWY 28L. I AGAIN SAID 'RWY 28R?' HE SAID 'THAT WASN'T A TEST, YOU'RE CORRECT RWY 28R.' WE MADE AN UNEVENTFUL LNDG. TWR REQUESTED WE MAKE THE NEXT R AND CONTACT GND. THERE WAS A SMALL JET HOLDING SHORT OF OUR RWY TO OUR L BTWN THE RWYS. GND CLRED US TO THE GATE. I'M FAIRLY CONFIDENT THIS WAS A NORMAL OP, BUT I STILL DIDN'T HEAR THE CLRNC RWY. I SHOULD HAVE REQUESTED THE CAPT CONFIRM WITH TWR SO I COULD HAVE HEARD THE CLRNC AND NOT JUST TAKEN HIS WORD. THIS WOULD PREVENT SECOND GUESSING AND THESE RPTS AFTER THE FACT.

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.