Narrative:

We diverted to hou because of thunderstorms over iah. After refueling we were dispatched to iah upon taxi out to runway 04 thunderstorms were in the vicinity of hou, other traffic was requesting thru ground control specific headings on departure to avoid the WX. We had our radar tuned up as we were taxiing. I thought I had a good handle on the route and I was monitoring the radio traffic and radar to map our departure strategy. Between glancing at the radar, trying to figure the best departure, and thinking runway 04 was further ahead I found us on the departure end of runway 04 and radioed us to clear the runway and tower sent an aircraft on final around. I believe the causes are clear. My sole attention should have been on taxiing the aircraft to the runway. I'm sure its and old story: your sure you know where you're going so you let your attention slip to other planning factors. Only its obvious now that I wasn't that familiar. I have been to hou before but it was during the day, not on a dark rainy night. Although this was clearly my fault one mitigation factor should be examined. The hold short line at runway 04 is identified with a painted standard line and sign. Since it intersected a taxiway to runway 35 I believe it should have the elevated flashing guard lights. Supplemental information from acn 538888: as the first officer, I could have been more careful, looking outside as the captain taxied to aircraft. I have been to hou many times and found one thing that concerned me. Runway 04/22 red sign was marked 04/35 and they had no flashers. I find the yellow sequential flashers the best insurance in preventing a runway incursion. Another factor was fatigue. Diverting from iah we had to go around WX and turbulence that really exercised all my airmanship abilities.

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Original NASA ASRS Text

Title: POTENTIAL GND CONFLICT WITH AN ACFT ON FINAL TO RWY 04 AFTER A RWY INCURSION BY A CL-65 AT HOU, TX.

Narrative: WE DIVERTED TO HOU BECAUSE OF THUNDERSTORMS OVER IAH. AFTER REFUELING WE WERE DISPATCHED TO IAH UPON TAXI OUT TO RWY 04 THUNDERSTORMS WERE IN THE VICINITY OF HOU, OTHER TFC WAS REQUESTING THRU GND CTL SPECIFIC HEADINGS ON DEP TO AVOID THE WX. WE HAD OUR RADAR TUNED UP AS WE WERE TAXIING. I THOUGHT I HAD A GOOD HANDLE ON THE RTE AND I WAS MONITORING THE RADIO TFC AND RADAR TO MAP OUR DEP STRATEGY. BETWEEN GLANCING AT THE RADAR, TRYING TO FIGURE THE BEST DEP, AND THINKING RWY 04 WAS FURTHER AHEAD I FOUND US ON THE DEP END OF RWY 04 AND RADIOED US TO CLR THE RWY AND TWR SENT AN ACFT ON FINAL AROUND. I BELIEVE THE CAUSES ARE CLR. MY SOLE ATTENTION SHOULD HAVE BEEN ON TAXIING THE ACFT TO THE RWY. I'M SURE ITS AND OLD STORY: YOUR SURE YOU KNOW WHERE YOU'RE GOING SO YOU LET YOUR ATTENTION SLIP TO OTHER PLANNING FACTORS. ONLY ITS OBVIOUS NOW THAT I WASN'T THAT FAMILIAR. I HAVE BEEN TO HOU BEFORE BUT IT WAS DURING THE DAY, NOT ON A DARK RAINY NIGHT. ALTHOUGH THIS WAS CLRLY MY FAULT ONE MITIGATION FACTOR SHOULD BE EXAMINED. THE HOLD SHORT LINE AT RWY 04 IS IDENTIFIED WITH A PAINTED STANDARD LINE AND SIGN. SINCE IT INTERSECTED A TXWY TO RWY 35 I BELIEVE IT SHOULD HAVE THE ELEVATED FLASHING GUARD LIGHTS. SUPPLEMENTAL INFO FROM ACN 538888: AS THE FO, I COULD HAVE BEEN MORE CAREFUL, LOOKING OUTSIDE AS THE CAPT TAXIED TO ACFT. I HAVE BEEN TO HOU MANY TIMES AND FOUND ONE THING THAT CONCERNED ME. RWY 04/22 RED SIGN WAS MARKED 04/35 AND THEY HAD NO FLASHERS. I FIND THE YELLOW SEQUENTIAL FLASHERS THE BEST INSURANCE IN PREVENTING A RWY INCURSION. ANOTHER FACTOR WAS FATIGUE. DIVERTING FROM IAH WE HAD TO GAR WX AND TURB THAT REALLY EXERCISED ALL MY AIRMANSHIP ABILITIES.

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.