An MD80 flight crew overshoot the ILS localizer at oak due to the PF looking for traffic.

Attributes
ACN	595550
Time
Date	200310
Day	Sat
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : oak.airport
State Reference	CA
Altitude	msl single value : 3000
Environment
Flight Conditions	VMC
Weather Elements	Fog
Light	Daylight
Aircraft 1
Controlling Facilities	tracon : nct.tracon
Operator	common carrier : air carrier
Make Model Name	MD-80 Super 80
Operating Under FAR Part	Part 121
Navigation In Use	ils localizer only : 29 other vortac
Flight Phase	descent : approach
Route In Use	approach : instrument precision
Flight Plan	IFR
Aircraft 2
Controlling Facilities	tracon : nct.tracon
Operator	common carrier : air carrier
Make Model Name	Commercial Fixed Wing
Operating Under FAR Part	Part 121
Flight Phase	descent : approach
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
ASRS Report	595550
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Events
Anomaly	non adherence : clearance non adherence : far other anomaly other spatial deviation
Independent Detector	other flight crewa
Resolutory Action	controller : issued advisory flight crew : returned to intended or assigned course
Consequence	faa : reviewed incident with flight crew
Supplementary
Problem Areas	Flight Crew Human Performance
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

Oakland WX was VFR with a 1200 ft broken layer of coastal fog extending to the final approach fix. East of the final approach fix the WX was clear. The first officer was hand flying as we were cleared to intercept the localizer. The approach had been briefed and navaids idented. Navigation #1 was tuned to oak VOR with navigation #2 tuned to the localizer. The first officer missed the localizer crossing while looking for VFR traffic at hayward. I called out the localizer and he corrected for a reintercept. Approach also noticed our deviation and issued a heading for the intercept. The approach continued uneventfully. There was traffic parallel to our approach for sfo. This traffic was in sight during the overshoot and approach.

Original NASA ASRS Text

Title: AN MD80 FLT CREW OVERSHOOT THE ILS LOC AT OAK DUE TO THE PF LOOKING FOR TFC.

Narrative: OAKLAND WX WAS VFR WITH A 1200 FT BROKEN LAYER OF COASTAL FOG EXTENDING TO THE FINAL APCH FIX. E OF THE FINAL APCH FIX THE WX WAS CLR. THE FO WAS HAND FLYING AS WE WERE CLRED TO INTERCEPT THE LOC. THE APCH HAD BEEN BRIEFED AND NAVAIDS IDENTED. NAV #1 WAS TUNED TO OAK VOR WITH NAV #2 TUNED TO THE LOC. THE FO MISSED THE LOC XING WHILE LOOKING FOR VFR TFC AT HAYWARD. I CALLED OUT THE LOC AND HE CORRECTED FOR A REINTERCEPT. APCH ALSO NOTICED OUR DEV AND ISSUED A HEADING FOR THE INTERCEPT. THE APCH CONTINUED UNEVENTFULLY. THERE WAS TFC PARALLEL TO OUR APCH FOR SFO. THIS TFC WAS IN SIGHT DURING THE OVERSHOOT AND APCH.

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.