Flight crew controller confusion over 'expect' clearance.

Attributes
ACN	154591
Time
Date	199008
Day	Wed
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : ord
State Reference	IL
Altitude	msl bound lower : 8000 msl bound upper : 8000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tracon : ord
Operator	common carrier : air carrier
Make Model Name	Medium Large Transport, Low Wing, 2 Turbojet Eng
Navigation In Use	Other Other
Flight Phase	descent : approach
Route In Use	enroute : on vectors
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : atp pilot : flight engineer
Experience	flight time last 90 days : 180 flight time total : 7000
ASRS Report	154591
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Experience	flight time last 90 days : 200 flight time total : 8000
ASRS Report	154589
Events
Anomaly	non adherence : clearance other spatial deviation
Independent Detector	other controllera
Resolutory Action	controller : issued new clearance other
Consequence	Other
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

En route to ord. Approach control gave a heading of 270 degree and speed 170 KTS and what was thought to be to intercept the 22R localizer at ord. This was read back to the controller. Immediately we intercepted the runway 22R localizer at ord maintaining last assigned altitude. The controller noted our turn on to the localizer and indicated we were to expect the 22R localizer. He broke us out to a new heading and then resequenced us onto the 22R localizer. Supplemental information from acn 154589. Moral, all participants should listen up.

Original NASA ASRS Text

Title: FLT CREW CTLR CONFUSION OVER 'EXPECT' CLRNC.

Narrative: ENRTE TO ORD. APCH CTL GAVE A HDG OF 270 DEG AND SPD 170 KTS AND WHAT WAS THOUGHT TO BE TO INTERCEPT THE 22R LOC AT ORD. THIS WAS READ BACK TO THE CTLR. IMMEDIATELY WE INTERCEPTED THE RWY 22R LOC AT ORD MAINTAINING LAST ASSIGNED ALT. THE CTLR NOTED OUR TURN ON TO THE LOC AND INDICATED WE WERE TO EXPECT THE 22R LOC. HE BROKE US OUT TO A NEW HDG AND THEN RESEQUENCED US ONTO THE 22R LOC. SUPPLEMENTAL INFO FROM ACN 154589. MORAL, ALL PARTICIPANTS SHOULD LISTEN UP.

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.