Widebody transport aircraft on approach flies through localizer.

Attributes
ACN	305470
Time
Date	199505
Day	Thu
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : atl
State Reference	GA
Altitude	agl bound lower : 4000 agl bound upper : 4000
Environment
Flight Conditions	Mixed
Light	Daylight
Aircraft 1
Controlling Facilities	tower : atl
Operator	common carrier : air carrier
Make Model Name	Commercial Fixed Wing
Operating Under FAR Part	Part 121
Navigation In Use	Other Other
Flight Phase	descent : approach
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : instrument pilot : atp pilot : flight engineer
Experience	flight time last 90 days : 100 flight time total : 18000 flight time type : 1100
ASRS Report	305470
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : commercial pilot : atp pilot : instrument
Events
Anomaly	non adherence : clearance other spatial deviation
Independent Detector	other flight crewa
Resolutory Action	flight crew : returned to intended course or assigned course flight crew : became reoriented
Consequence	Other
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

All prelndg checklists complete. At approximately 4000 ft AGL on a heading of 240 degrees, cleared for approach/landing, armed automatic approach mode within 3-4 mi of localizer intercept. Flew through localizer, approximately 1/2 - 3/4 mi (ILS runway 26R 110.1 I gxz), then attempted to capture localizer with a hard right turn. Disconnected autoplt and manually flew approach to landing. Suspect weak localizer signal, or onboard ILS receiver problem.

Original NASA ASRS Text

Title: WDB ACFT ON APCH FLIES THROUGH LOC.

Narrative: ALL PRELNDG CHKLISTS COMPLETE. AT APPROX 4000 FT AGL ON A HDG OF 240 DEGS, CLRED FOR APCH/LNDG, ARMED AUTO APCH MODE WITHIN 3-4 MI OF LOC INTERCEPT. FLEW THROUGH LOC, APPROX 1/2 - 3/4 MI (ILS RWY 26R 110.1 I GXZ), THEN ATTEMPTED TO CAPTURE LOC WITH A HARD R TURN. DISCONNECTED AUTOPLT AND MANUALLY FLEW APCH TO LNDG. SUSPECT WEAK LOC SIGNAL, OR ONBOARD ILS RECEIVER PROB.

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.