C172 taxiing for departure at sch enters runway without ATC clearance.

Attributes
ACN	574360
Time
Date	200302
Day	Sun
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : sch.airport
State Reference	NY
Altitude	agl single value : 0
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Operator	Other
Make Model Name	Skyhawk 172/Cutlass 172
Operating Under FAR Part	Part 91
Flight Phase	ground : taxi
Flight Plan	None
Person 1
Affiliation	Other
Function	flight crew : single pilot
Qualification	pilot : commercial pilot : instrument
Experience	flight time last 90 days : 5.5 flight time total : 688 flight time type : 500
ASRS Report	574360
Person 2
Function	observation : passenger
Events
Anomaly	incursion : runway
Independent Detector	other controllera other flight crewa
Resolutory Action	none taken : anomaly accepted
Supplementary
Problem Areas	Flight Crew Human Performance Weather
Primary Problem	Flight Crew Human Performance

Narrative:

The purpose of the flight was an orientation flight in a cap plane. The PIC (me) explained the various phases of flight to the cadets. On this day, there was just 1 cadet and me. Our syllabus included demonstrations of aircraft stability and control. After finishing the run-up, the cadet asked me a question, which I was in the process of answering while moving to the hold short line. During this distraction, I realized I had taxied past the hold short lines and was almost on the runway numbers. I had not yet informed sch tower I was ready, so I stopped quickly and called tower. He mentioned my position, which I acknowledged and he wrote it off to snow obscuring the hold short line. I know my distraction with the cadet was the root cause and will not let it happen again.

Original NASA ASRS Text

Title: C172 TAXIING FOR DEP AT SCH ENTERS RWY WITHOUT ATC CLRNC.

Narrative: THE PURPOSE OF THE FLT WAS AN ORIENTATION FLT IN A CAP PLANE. THE PIC (ME) EXPLAINED THE VARIOUS PHASES OF FLT TO THE CADETS. ON THIS DAY, THERE WAS JUST 1 CADET AND ME. OUR SYLLABUS INCLUDED DEMONSTRATIONS OF ACFT STABILITY AND CTL. AFTER FINISHING THE RUN-UP, THE CADET ASKED ME A QUESTION, WHICH I WAS IN THE PROCESS OF ANSWERING WHILE MOVING TO THE HOLD SHORT LINE. DURING THIS DISTR, I REALIZED I HAD TAXIED PAST THE HOLD SHORT LINES AND WAS ALMOST ON THE RWY NUMBERS. I HAD NOT YET INFORMED SCH TWR I WAS READY, SO I STOPPED QUICKLY AND CALLED TWR. HE MENTIONED MY POS, WHICH I ACKNOWLEDGED AND HE WROTE IT OFF TO SNOW OBSCURING THE HOLD SHORT LINE. I KNOW MY DISTR WITH THE CADET WAS THE ROOT CAUSE AND WILL NOT LET IT HAPPEN AGAIN.

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.