BE20 flies through the localizer back course due to complexity of configuring GPS avionics.

Attributes
ACN	776593
Time
Date	200802
Place
Locale Reference	airport : luk.airport
State Reference	OH
Altitude	msl single value : 2100
Environment
Flight Conditions	Mixed
Weather Elements	Snow
Light	Daylight
Aircraft 1
Controlling Facilities	tracon : cvg.tracon
Operator	common carrier : air taxi
Make Model Name	Super King Air 200 HDC
Operating Under FAR Part	Part 135
Flight Phase	descent : approach
Route In Use	arrival : on vectors
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : cfi pilot : atp
Experience	flight time last 90 days : 50 flight time total : 6100 flight time type : 400
ASRS Report	776593
Events
Anomaly	aircraft equipment problem : less severe non adherence : clearance non adherence : published procedure other spatial deviation
Independent Detector	other flight crewa
Resolutory Action	none taken : unable
Supplementary
Problem Areas	Flight Crew Human Performance Aircraft
Primary Problem	Aircraft
Air Traffic Incident	Pilot Deviation

Narrative:

After being cleared direct to shila; cleared for localizer back-course 3R; we noticed the localizer frequency had not been put in. It couldn't be set in until GPS navigation was complete due to system implications. (It would be overridden by the localizer frequency even if 'GPS' was selected.) poor avionics setup led to lack of ability to properly set aircraft's avionics during approach briefing contributed to error of flying through approach course.

Original NASA ASRS Text

Title: BE20 FLIES THROUGH THE LOC BC DUE TO COMPLEXITY OF CONFIGURING GPS AVIONICS.

Narrative: AFTER BEING CLRED DIRECT TO SHILA; CLRED FOR LOC BACK-COURSE 3R; WE NOTICED THE LOC FREQ HAD NOT BEEN PUT IN. IT COULDN'T BE SET IN UNTIL GPS NAV WAS COMPLETE DUE TO SYS IMPLICATIONS. (IT WOULD BE OVERRIDDEN BY THE LOC FREQ EVEN IF 'GPS' WAS SELECTED.) POOR AVIONICS SETUP LED TO LACK OF ABILITY TO PROPERLY SET ACFT'S AVIONICS DURING APCH BRIEFING CONTRIBUTED TO ERROR OF FLYING THROUGH APCH COURSE.

Data retrieved from NASA's ASRS site as of May 2009 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.