C172 instructor and trainee had incursion of the ILS critical zone in IMC conditions at btl.

Attributes
ACN	518425
Time
Date	200107
Day	Wed
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : btl.airport
State Reference	MI
Altitude	agl single value : 0
Environment
Flight Conditions	IMC
Light	Daylight
Aircraft 1
Operator	general aviation : instructional
Make Model Name	Skyhawk 172/Cutlass 172
Operating Under FAR Part	Part 91
Navigation In Use	other vortac
Flight Phase	ground : holding ground : taxi
Flight Plan	IFR
Person 1
Affiliation	other
Function	instruction : instructor oversight : pic
Qualification	pilot : multi engine pilot : instrument pilot : commercial pilot : cfi
Experience	flight time last 90 days : 185 flight time total : 1030 flight time type : 795
ASRS Report	518425
Person 2
Affiliation	other
Function	instruction : trainee
Events
Anomaly	incursion : runway inflight encounter : weather inflight encounter other non adherence : clearance non adherence : published procedure non adherence : far other anomaly other
Independent Detector	other controllera other flight crewa
Resolutory Action	controller : issued alert controller : issued new clearance other
Supplementary
Problem Areas	Flight Crew Human Performance Weather
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

Upon engine run-up, I realized that my student and I had taxied beyond the ILS critical area with less than 2 mi visibility. Shortly after, ground control politely asked us to make a 180 degree turn and hold short of the critical area for runway 23. At the time of our ILS incursion, there was no aircraft on the ILS approach. The cause of this incursion was due to complacency with ground IFR procedures.

Original NASA ASRS Text

Title: C172 INSTRUCTOR AND TRAINEE HAD INCURSION OF THE ILS CRITICAL ZONE IN IMC CONDITIONS AT BTL.

Narrative: UPON ENG RUN-UP, I REALIZED THAT MY STUDENT AND I HAD TAXIED BEYOND THE ILS CRITICAL AREA WITH LESS THAN 2 MI VISIBILITY. SHORTLY AFTER, GND CTL POLITELY ASKED US TO MAKE A 180 DEG TURN AND HOLD SHORT OF THE CRITICAL AREA FOR RWY 23. AT THE TIME OF OUR ILS INCURSION, THERE WAS NO ACFT ON THE ILS APCH. THE CAUSE OF THIS INCURSION WAS DUE TO COMPLACENCY WITH GND IFR PROCS.

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.