H25B had a runway incursion on runway 4 at hou, in the rain, and reduced visibility.

Attributes
ACN	534657
Time
Date	200201
Day	Sat
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : hou.airport
State Reference	TX
Altitude	agl single value : 0
Environment
Flight Conditions	IMC
Weather Elements	Rain Fog
Light	Daylight
Aircraft 1
Operator	general aviation : corporate
Make Model Name	HS 125 Series 700
Operating Under FAR Part	Part 91
Flight Phase	ground : taxi
Flight Plan	IFR
Person 1
Affiliation	company : corporate
Function	flight crew : first officer
Qualification	pilot : private pilot : multi engine pilot : commercial pilot : atp pilot : instrument
Experience	flight time last 90 days : 200 flight time total : 5050 flight time type : 1500
ASRS Report	534657
Person 2
Affiliation	company : corporate
Function	flight crew : captain oversight : pic
Events
Anomaly	incursion : runway inflight encounter : weather inflight encounter other non adherence : company policies non adherence : published procedure non adherence : far other anomaly other
Independent Detector	other controllera other flight crewa other flight crewb
Resolutory Action	controller : issued new clearance none taken : detected after the fact
Consequence	faa : reviewed incident with flight crew
Supplementary
Problem Areas	Flight Crew Human Performance Weather
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

H25B aircraft, 2 crew members aboard as required, operating on an IFR flight plan, was given clearance to taxi from ramp area and execute a right turn onto the taxiway with clearance to runway 4. Visibility was greatly reduced by intermittent rain showers. The right seat pilot was referencing the airport diagram and prompting the left seat pilot. The taxiway was wet, the visibility marginal, which prompted the left seat pilot who was taxiing the aircraft to ask how far down the taxiway do we go. The right seat pilot responded by saying 'all the way down.' the aircraft was taxied a short distance when the left and right seat pilots both realized the aircraft had crossed over the hold short line for runway 4. The line was estimated to be just under the tail. The event was observed by the tower and the aircraft was given clearance to taxi into position on runway 4 and hold. After takeoff, a follow-up call was made to the tower and a brief discussion regarding the matter took place. The follow-up call closed the issue on a positive note. Runway incursions are a major issue. Cockpit vigilance has got to be a first priority. Taxi clrncs must be executed correctly. One pilot must doublechk the taxi route on the airport diagram and monitor aircraft position and prompt the pilot taxiing the aircraft. Cockpit crew members must be vigilant at all times. Strict vigilance must be maintained while other cockpit duties are being accomplished. In this instance as described, better communication between the 2 pilots and a heightened awareness of aircraft position would have avoided the event ever taking place.

Original NASA ASRS Text

Title: H25B HAD A RWY INCURSION ON RWY 4 AT HOU, IN THE RAIN, AND REDUCED VISIBILITY.

Narrative: H25B ACFT, 2 CREW MEMBERS ABOARD AS REQUIRED, OPERATING ON AN IFR FLT PLAN, WAS GIVEN CLRNC TO TAXI FROM RAMP AREA AND EXECUTE A R TURN ONTO THE TXWY WITH CLRNC TO RWY 4. VISIBILITY WAS GREATLY REDUCED BY INTERMITTENT RAIN SHOWERS. THE R SEAT PLT WAS REFING THE ARPT DIAGRAM AND PROMPTING THE L SEAT PLT. THE TXWY WAS WET, THE VISIBILITY MARGINAL, WHICH PROMPTED THE L SEAT PLT WHO WAS TAXIING THE ACFT TO ASK HOW FAR DOWN THE TXWY DO WE GO. THE R SEAT PLT RESPONDED BY SAYING 'ALL THE WAY DOWN.' THE ACFT WAS TAXIED A SHORT DISTANCE WHEN THE L AND R SEAT PLTS BOTH REALIZED THE ACFT HAD CROSSED OVER THE HOLD SHORT LINE FOR RWY 4. THE LINE WAS ESTIMATED TO BE JUST UNDER THE TAIL. THE EVENT WAS OBSERVED BY THE TWR AND THE ACFT WAS GIVEN CLRNC TO TAXI INTO POS ON RWY 4 AND HOLD. AFTER TKOF, A FOLLOW-UP CALL WAS MADE TO THE TWR AND A BRIEF DISCUSSION REGARDING THE MATTER TOOK PLACE. THE FOLLOW-UP CALL CLOSED THE ISSUE ON A POSITIVE NOTE. RWY INCURSIONS ARE A MAJOR ISSUE. COCKPIT VIGILANCE HAS GOT TO BE A FIRST PRIORITY. TAXI CLRNCS MUST BE EXECUTED CORRECTLY. ONE PLT MUST DOUBLECHK THE TAXI RTE ON THE ARPT DIAGRAM AND MONITOR ACFT POS AND PROMPT THE PLT TAXIING THE ACFT. COCKPIT CREW MEMBERS MUST BE VIGILANT AT ALL TIMES. STRICT VIGILANCE MUST BE MAINTAINED WHILE OTHER COCKPIT DUTIES ARE BEING ACCOMPLISHED. IN THIS INSTANCE AS DESCRIBED, BETTER COM BTWN THE 2 PLTS AND A HEIGHTENED AWARENESS OF ACFT POS WOULD HAVE AVOIDED THE EVENT EVER TAKING PLACE.

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.