An A320 flight crew have an near midair collision with a B767 that overshoots final approach course.

Attributes
ACN	595120
Time
Date	200310
Day	Wed
Local Time Of Day	0001 To 0600
Place
Locale Reference	airport : ord.airport
State Reference	IL
Altitude	msl single value : 5000
Environment
Flight Conditions	VMC
Light	Night
Aircraft 1
Controlling Facilities	tracon : c90.tracon
Operator	common carrier : air carrier
Make Model Name	A320
Operating Under FAR Part	Part 121
Flight Phase	descent : approach
Flight Plan	IFR
Aircraft 2
Controlling Facilities	tracon : c90.tracon
Operator	common carrier : air carrier
Make Model Name	B767 Undifferentiated or Other Model
Operating Under FAR Part	Part 121
Flight Phase	descent : approach
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : multi engine pilot : commercial pilot : instrument
Experience	flight time last 90 days : 120 flight time total : 10000 flight time type : 1200
ASRS Report	595120
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Experience	flight time last 90 days : 130 flight time total : 18000 flight time type : 1096
ASRS Report	595357
Events
Anomaly	non adherence : clearance non adherence : far other spatial deviation
Independent Detector	aircraft equipment : tcas other flight crewa
Resolutory Action	flight crew : took precautionary avoidance action
Miss Distance	horizontal : 100 vertical : 300
Supplementary
Problem Areas	ATC Human Performance Flight Crew Human Performance
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

As PF turning left final at ord runway 27L, noticed nose on traffic to runway 27R. Looked like he was going to overshoot runway 27R and encroach on our flight path. Stated this to PNF, captain queried approach. Meanwhile approaching aircraft air carrier Y, continued to roll out on our flight path. We level off while the PNF continued to ask ATC about the situation. Air carrier Y rolled out directly behind us and about 300 ft below. I estimate the closest point of approach at 100 ft. The air carrier Y B767 then corrected back to runway 27R and the approachs continued. We received a TA on initial point of approach but did not get an RA. The targets appeared to be merged on the TCASII. Bottom line air carrier Y went for the wrong runway, ATC did not catch it and we almost had a midair.

Original NASA ASRS Text

Title: AN A320 FLT CREW HAVE AN NMAC WITH A B767 THAT OVERSHOOTS FINAL APCH COURSE.

Narrative: AS PF TURNING L FINAL AT ORD RWY 27L, NOTICED NOSE ON TFC TO RWY 27R. LOOKED LIKE HE WAS GOING TO OVERSHOOT RWY 27R AND ENCROACH ON OUR FLT PATH. STATED THIS TO PNF, CAPT QUERIED APCH. MEANWHILE APCHING ACFT ACR Y, CONTINUED TO ROLL OUT ON OUR FLT PATH. WE LEVEL OFF WHILE THE PNF CONTINUED TO ASK ATC ABOUT THE SIT. ACR Y ROLLED OUT DIRECTLY BEHIND US AND ABOUT 300 FT BELOW. I ESTIMATE THE CLOSEST POINT OF APCH AT 100 FT. THE ACR Y B767 THEN CORRECTED BACK TO RWY 27R AND THE APCHS CONTINUED. WE RECEIVED A TA ON INITIAL POINT OF APCH BUT DID NOT GET AN RA. THE TARGETS APPEARED TO BE MERGED ON THE TCASII. BOTTOM LINE ACR Y WENT FOR THE WRONG RWY, ATC DID NOT CATCH IT AND WE ALMOST HAD A MIDAIR.

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.