C310 pilot had runway incursion on runway 7 at vgt.

Attributes
ACN	496003
Time
Date	200012
Day	Sun
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : vgt.airport
State Reference	NV
Altitude	agl single value : 0
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tower : vgt.tower
Operator	general aviation : personal
Make Model Name	Cessna 310/T310C
Operating Under FAR Part	Part 91
Flight Phase	ground : taxi
Flight Plan	VFR
Aircraft 2
Controlling Facilities	tower : vgt.tower
Make Model Name	Any Unknown or Unlisted Aircraft Manufacturer
Flight Phase	descent : approach landing : go around
Person 1
Affiliation	other
Function	flight crew : single pilot
Qualification	pilot : multi engine pilot : instrument pilot : commercial
Experience	flight time last 90 days : 25 flight time total : 1050 flight time type : 400
ASRS Report	496003
Person 2
Function	observation : passenger
Events
Anomaly	ground encounters other incursion : runway non adherence : clearance non adherence : far non adherence : published procedure 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 FAA Airport ATC Human Performance
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation
Situations
ATC Facility	procedure or policy : vgt.tower

Narrative:

Told to hold short of runway 7 for takeoff at A1 awaiting several arrs. After some time, I heard 'taxi onto position and hold' -- I thought I heard 'position and hold runway 7,' which I did. Evidently, he had said 'cross runway 7, position and hold runway 12,' because another aircraft on final to runway 7 had to go around. I really did not hear the controller say to cross runway 7 and go to runway 12. Though the controller's instruction did seem garbled. My passenger (also a pilot) was also unclr as to what was said. I deeply regret having misunderstood this instruction. To correct problem: 1) ask for clarification -- though garbled, I thought I had correctly understood. 2) look more carefully for aircraft on final. 3) controller be clrer -- add phrase such as 'new runway assignment' or 'can you take runway 12?' note: the airport was busy and breaking in was difficult, but should have done it. Operations were being conducted on runway 7, runway 12 and runway 30. Tours were landing on runway 30 which added to confusion regarding runway 12 use.

Original NASA ASRS Text

Title: C310 PLT HAD RWY INCURSION ON RWY 7 AT VGT.

Narrative: TOLD TO HOLD SHORT OF RWY 7 FOR TKOF AT A1 AWAITING SEVERAL ARRS. AFTER SOME TIME, I HEARD 'TAXI ONTO POS AND HOLD' -- I THOUGHT I HEARD 'POS AND HOLD RWY 7,' WHICH I DID. EVIDENTLY, HE HAD SAID 'CROSS RWY 7, POS AND HOLD RWY 12,' BECAUSE ANOTHER ACFT ON FINAL TO RWY 7 HAD TO GO AROUND. I REALLY DID NOT HEAR THE CTLR SAY TO CROSS RWY 7 AND GO TO RWY 12. THOUGH THE CTLR'S INSTRUCTION DID SEEM GARBLED. MY PAX (ALSO A PLT) WAS ALSO UNCLR AS TO WHAT WAS SAID. I DEEPLY REGRET HAVING MISUNDERSTOOD THIS INSTRUCTION. TO CORRECT PROB: 1) ASK FOR CLARIFICATION -- THOUGH GARBLED, I THOUGHT I HAD CORRECTLY UNDERSTOOD. 2) LOOK MORE CAREFULLY FOR ACFT ON FINAL. 3) CTLR BE CLRER -- ADD PHRASE SUCH AS 'NEW RWY ASSIGNMENT' OR 'CAN YOU TAKE RWY 12?' NOTE: THE ARPT WAS BUSY AND BREAKING IN WAS DIFFICULT, BUT SHOULD HAVE DONE IT. OPS WERE BEING CONDUCTED ON RWY 7, RWY 12 AND RWY 30. TOURS WERE LNDG ON RWY 30 WHICH ADDED TO CONFUSION REGARDING RWY 12 USE.

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.