Small transport's unauthorized taxi creates a runway incursion.

Attributes
ACN	221758
Time
Date	199209
Day	Wed
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : bet
State Reference	AK
Altitude	agl bound lower : 0 agl bound upper : 0
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	artcc : zoa
Operator	general aviation : personal
Make Model Name	Small Transport, Low Wing, 2 Recip Eng
Flight Phase	ground : preflight ground : holding ground other : taxi
Flight Plan	None
Aircraft 2
Operator	common carrier : air taxi
Make Model Name	Small Transport, Low Wing, 2 Recip Eng
Flight Phase	climbout : takeoff ground : holding
Flight Plan	IFR
Person 1
Affiliation	Other
Function	flight crew : single pilot
Qualification	pilot : commercial pilot : instrument pilot : cfi
Experience	flight time last 90 days : 200 flight time total : 1500 flight time type : 700
ASRS Report	221758
Person 2
Affiliation	company : air taxi
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Events
Anomaly	incursion : runway non adherence : published procedure non adherence : far non adherence : clearance
Independent Detector	other controllera other flight crewa
Resolutory Action	controller : issued new clearance other
Consequence	Other
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

I misinterpreted taxi instructions on the ATIS. Proceeded from fuel service to runway without taxi clearance. I was monitoring tower frequency and was proceeding to runway 36, which was active runway. I began to taxi onto runway 29 (approach end stems off of 36) ready to advise tower, 'ready for departure 36.' apparently the aircraft, which looked to be holding for 36, decided to depart 29. I saw him start to do a 180 degree turn. I knew I had a problem. At no time were persons or property in danger of injury or damage. Tower instructed me to proceed across and clear 29 for departing aircraft. I have never had any problems with ATC before and feel I am fairly well versed in ground and air procedures. The problem was caused by poor cockpit and priority management. I had 5 aerial recon missions to fly and was organizing flight maps while listening to ATIS. For this situation never to happen again I must prioritize much more efficiently. In other words, when it's time to fly, in this case taxi, concentrate on the task at hand. Take care of the plane and follow procedures. If I want to organize something do it prior, not during the receiving of important information.

Original NASA ASRS Text

Title: SMT'S UNAUTHORIZED TAXI CREATES A RWY INCURSION.

Narrative: I MISINTERPRETED TAXI INSTRUCTIONS ON THE ATIS. PROCEEDED FROM FUEL SVC TO RWY WITHOUT TAXI CLRNC. I WAS MONITORING TWR FREQ AND WAS PROCEEDING TO RWY 36, WHICH WAS ACTIVE RWY. I BEGAN TO TAXI ONTO RWY 29 (APCH END STEMS OFF OF 36) READY TO ADVISE TWR, 'READY FOR DEP 36.' APPARENTLY THE ACFT, WHICH LOOKED TO BE HOLDING FOR 36, DECIDED TO DEPART 29. I SAW HIM START TO DO A 180 DEG TURN. I KNEW I HAD A PROBLEM. AT NO TIME WERE PERSONS OR PROPERTY IN DANGER OF INJURY OR DAMAGE. TWR INSTRUCTED ME TO PROCEED ACROSS AND CLR 29 FOR DEPARTING ACFT. I HAVE NEVER HAD ANY PROBLEMS WITH ATC BEFORE AND FEEL I AM FAIRLY WELL VERSED IN GND AND AIR PROCS. THE PROBLEM WAS CAUSED BY POOR COCKPIT AND PRIORITY MGMNT. I HAD 5 AERIAL RECON MISSIONS TO FLY AND WAS ORGANIZING FLT MAPS WHILE LISTENING TO ATIS. FOR THIS SITUATION NEVER TO HAPPEN AGAIN I MUST PRIORITIZE MUCH MORE EFFICIENTLY. IN OTHER WORDS, WHEN IT'S TIME TO FLY, IN THIS CASE TAXI, CONCENTRATE ON THE TASK AT HAND. TAKE CARE OF THE PLANE AND FOLLOW PROCS. IF I WANT TO ORGANIZE SOMETHING DO IT PRIOR, NOT DURING THE RECEIVING OF IMPORTANT INFO.

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.