C414 pilot has runway incursion at ida.

Attributes
ACN	566203
Time
Date	200211
Day	Thu
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : ida.airport
State Reference	ID
Altitude	agl single value : 0
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Operator	other
Make Model Name	Chancellor 414A & C414
Operating Under FAR Part	Part 91
Flight Phase	ground : taxi
Flight Plan	IFR
Person 1
Function	flight crew : single pilot
Qualification	pilot : atp pilot : cfi
Experience	flight time last 90 days : 24 flight time total : 15000 flight time type : 600
ASRS Report	566203
Person 2
Function	observation : passenger
Events
Anomaly	incursion : runway non adherence : far
Independent Detector	other flight crewa
Resolutory Action	none taken : detected after the fact other
Consequence	faa : reviewed incident with flight crew
Supplementary
Problem Areas	Flight Crew Human Performance Passenger Human Performance
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

I called idaho falls ground for IFR clearance for a flight to boise, identification. After receiving clearance, I was cleared to taxi to active runway. I allowed myself to be distraction explaining run-up procedures to a non pilot passenger that was sitting in the copilot's seat. He asked if we were waiting for an aircraft that was on base to land. I said that we were. After that aircraft landed and after our pre takeoff checklist was completed, I looked for any other traffic in the pattern and began taxi onto the runway as there was no traffic. When approximately 1/2 of the aircraft was on the runway, I realized that I had forgotten to request takeoff clearance from the tower. I immediately stopped my movement and called tower for clearance! They issued me a position and hold clearance followed by a cleared for takeoff clearance. I called the tower on the radio and again by telephone following the flight to apologize. It was very embarrassing! I had been operating from a lot of uncontrolled fields and just had momentary lapse in my thought process. We did not create any traffic conflict, but potentially could have.

Original NASA ASRS Text

Title: C414 PLT HAS RWY INCURSION AT IDA.

Narrative: I CALLED IDAHO FALLS GND FOR IFR CLRNC FOR A FLT TO BOISE, ID. AFTER RECEIVING CLRNC, I WAS CLRED TO TAXI TO ACTIVE RWY. I ALLOWED MYSELF TO BE DISTR EXPLAINING RUN-UP PROCS TO A NON PLT PAX THAT WAS SITTING IN THE COPLT'S SEAT. HE ASKED IF WE WERE WAITING FOR AN ACFT THAT WAS ON BASE TO LAND. I SAID THAT WE WERE. AFTER THAT ACFT LANDED AND AFTER OUR PRE TKOF CHKLIST WAS COMPLETED, I LOOKED FOR ANY OTHER TFC IN THE PATTERN AND BEGAN TAXI ONTO THE RWY AS THERE WAS NO TFC. WHEN APPROX 1/2 OF THE ACFT WAS ON THE RWY, I REALIZED THAT I HAD FORGOTTEN TO REQUEST TKOF CLRNC FROM THE TWR. I IMMEDIATELY STOPPED MY MOVEMENT AND CALLED TWR FOR CLRNC! THEY ISSUED ME A POS AND HOLD CLRNC FOLLOWED BY A CLRED FOR TKOF CLRNC. I CALLED THE TWR ON THE RADIO AND AGAIN BY TELEPHONE FOLLOWING THE FLT TO APOLOGIZE. IT WAS VERY EMBARRASSING! I HAD BEEN OPERATING FROM A LOT OF UNCTLED FIELDS AND JUST HAD MOMENTARY LAPSE IN MY THOUGHT PROCESS. WE DID NOT CREATE ANY TFC CONFLICT, BUT POTENTIALLY COULD HAVE.

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.