Reporter aircraft taxied onto active runway and into the path of small aircraft on takeoff roll.

Attributes
ACN	116674
Time
Date	198907
Day	Sun
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : pvf
State Reference	CA
Altitude	agl bound lower : 0 agl bound upper : 0
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Operator	general aviation : personal
Make Model Name	Small Aircraft, High Wing, 1 Eng, Fixed Gear
Flight Phase	ground other : taxi
Flight Plan	None
Aircraft 2
Operator	general aviation : personal
Make Model Name	Small Aircraft
Flight Phase	climbout : takeoff
Person 1
Affiliation	Other
Function	flight crew : single pilot
Qualification	pilot : private
Experience	flight time last 90 days : 57 flight time total : 353 flight time type : 340
ASRS Report	116674
Person 2
Affiliation	Other
Function	flight crew : single pilot
Events
Anomaly	conflict : ground critical incursion : runway other anomaly other
Independent Detector	other flight crewa
Resolutory Action	flight crew : took evasive action none taken : insufficient time
Consequence	Other
Miss Distance	horizontal : 100 vertical : 50
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

On a clear morning, I was at placerville airport and, as an small aircraft began its takeoff roll, I inadvertently allowed the nose of my aircraft to enter the runway. The pilot of the small aircraft saw what had happened and got his aircraft off the runway before a collision took place. I simply had not taken the time to properly familiarize myself with the airport and blindly followed a yellow taxiway line, believing it to be the route to the runup area. The problem arose because I was not paying attention to what I was doing. I discovered my mistake when I saw one of the broken white lines indicating the runway centerline. I immediately stopped my aircraft and shut down, the pilot of the small aircraft issued an epithet on the radio appropriate for the situation. The human performance consideration is easy to analyze, I was following a line on some pavement rather than to the entire situation surrounding me. My inaction was simply to follow that line, rather than look to see where it went. If there was any factor affecting my performance it was thinking about where I would be going once airborne rather than thinking about where I was going on the ground.

Original NASA ASRS Text

Title: REPORTER ACFT TAXIED ONTO ACTIVE RWY AND INTO THE PATH OF SMA ON TKOF ROLL.

Narrative: ON A CLEAR MORNING, I WAS AT PLACERVILLE ARPT AND, AS AN SMA BEGAN ITS TKOF ROLL, I INADVERTENTLY ALLOWED THE NOSE OF MY ACFT TO ENTER THE RWY. THE PLT OF THE SMA SAW WHAT HAD HAPPENED AND GOT HIS ACFT OFF THE RWY BEFORE A COLLISION TOOK PLACE. I SIMPLY HAD NOT TAKEN THE TIME TO PROPERLY FAMILIARIZE MYSELF WITH THE ARPT AND BLINDLY FOLLOWED A YELLOW TXWY LINE, BELIEVING IT TO BE THE ROUTE TO THE RUNUP AREA. THE PROBLEM AROSE BECAUSE I WAS NOT PAYING ATTN TO WHAT I WAS DOING. I DISCOVERED MY MISTAKE WHEN I SAW ONE OF THE BROKEN WHITE LINES INDICATING THE RWY CENTERLINE. I IMMEDIATELY STOPPED MY ACFT AND SHUT DOWN, THE PLT OF THE SMA ISSUED AN EPITHET ON THE RADIO APPROPRIATE FOR THE SITUATION. THE HUMAN PERFORMANCE CONSIDERATION IS EASY TO ANALYZE, I WAS FOLLOWING A LINE ON SOME PAVEMENT RATHER THAN TO THE ENTIRE SITUATION SURROUNDING ME. MY INACTION WAS SIMPLY TO FOLLOW THAT LINE, RATHER THAN LOOK TO SEE WHERE IT WENT. IF THERE WAS ANY FACTOR AFFECTING MY PERFORMANCE IT WAS THINKING ABOUT WHERE I WOULD BE GOING ONCE AIRBORNE RATHER THAN THINKING ABOUT WHERE I WAS GOING ON THE GND.

Data retrieved from NASA's ASRS site as of August 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.