An F-100 flight crew has concern with a last min runway change and not being informed about it.

Attributes
ACN	525790
Time
Date	200109
Day	Mon
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : dtw.airport
State Reference	MI
Altitude	msl single value : 1500
Environment
Flight Conditions	Mixed
Light	Daylight
Aircraft 1
Operator	common carrier : air carrier
Make Model Name	Fokker 100
Flight Phase	descent : approach descent : intermediate altitude
Route In Use	arrival : on vectors
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp pilot : cfi pilot : commercial pilot : flight engineer
Experience	flight time last 90 days : 160 flight time total : 14000 flight time type : 600
ASRS Report	525790
Events
Anomaly	other anomaly other
Resolutory Action	controller : issued advisory
Consequence	faa : reviewed incident with flight crew
Supplementary
Problem Areas	Flight Crew Human Performance ATC Human Performance
Primary Problem	Ambiguous

Narrative:

On the initial call-up we were told to expect runway 4R at detroit. We are positive of this because neither of us knew dtw ever had a runway 4. After being cleared for the approach we figured out we had set up for runway 4 and they expected us to land runway 3. I asked him to clarify and we were given a visual approach. I don't know which approach the final controller cleared us for. But if there is a change from what we were given to expect I think they should make it very clear that this did change runways on you and make sure that you are aware of the change.

Original NASA ASRS Text

Title: AN F-100 FLT CREW HAS CONCERN WITH A LAST MIN RWY CHANGE AND NOT BEING INFORMED ABOUT IT.

Narrative: ON THE INITIAL CALL-UP WE WERE TOLD TO EXPECT RWY 4R AT DETROIT. WE ARE POSITIVE OF THIS BECAUSE NEITHER OF US KNEW DTW EVER HAD A RWY 4. AFTER BEING CLRED FOR THE APCH WE FIGURED OUT WE HAD SET UP FOR RWY 4 AND THEY EXPECTED US TO LAND RWY 3. I ASKED HIM TO CLARIFY AND WE WERE GIVEN A VISUAL APCH. I DON'T KNOW WHICH APCH THE FINAL CTLR CLRED US FOR. BUT IF THERE IS A CHANGE FROM WHAT WE WERE GIVEN TO EXPECT I THINK THEY SHOULD MAKE IT VERY CLR THAT THIS DID CHANGE RWYS ON YOU AND MAKE SURE THAT YOU ARE AWARE OF THE CHANGE.

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.