<< >> NASA ASRS Report 441233, June 1999

Flight crew experienced difficulty determining the aircraft's position on las runway 7L and runway 1L junction and lined up on the red runway edge lights.

Attributes
ACN	441233
Time
Date	199906
Day	Wed
Local Time Of Day	1801 To 2400
Place
Locale Reference	airport : las.airport
State Reference	NV
Altitude	agl single value : 0
Environment
Light	Night
Aircraft 1
Controlling Facilities	tower : las.tower
Operator	common carrier : air carrier
Make Model Name	Commercial Fixed Wing
Operating Under FAR Part	Part 121
Flight Phase	climbout : takeoff
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : multi engine pilot : instrument pilot : commercial pilot : atp
Experience	flight time last 90 days : 270 flight time total : 6000 flight time type : 270
ASRS Report	441235
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Events
Anomaly	other anomaly other
Independent Detector	other flight crewa other flight crewb
Resolutory Action	flight crew : returned to intended or assigned course
Supplementary
Problem Areas	Flight Crew Human Performance
Primary Problem	Flight Crew Human Performance

Narrative:

Where runway 7L and runway 1L intersect is very confusing at night. We were cleared for takeoff on runway 7L after sitting in position for several mins. I asked the captain if this picture out the window looked right because I could see red lights that looked like centerline lights and some red stop bars, maybe 4 lights wide, embedded in the concrete. It seemed fine to him and I thought we were lined up. When cleared for takeoff, it appeared to me something wasn't right with the way we were traveling. After calling 'set power' and I could see lights moving, I could tell we were well to the right of the runway 7L centerline. In fact, the captain initially had lined up with the runway edge lights because there are no centerline lights for that runway. I added left rudder as it became clear what the situation was. The captain initially queried my left rudder input then realized afterwards what the situation was. Fortunately, the area of that runway intersection is all concrete and we took off without incident.

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Original NASA ASRS Text

Title: FLC EXPERIENCED DIFFICULTY DETERMINING THE ACFT'S POS ON LAS RWY 7L AND RWY 1L JUNCTION AND LINED UP ON THE RED RWY EDGE LIGHTS.

Narrative: WHERE RWY 7L AND RWY 1L INTERSECT IS VERY CONFUSING AT NIGHT. WE WERE CLRED FOR TKOF ON RWY 7L AFTER SITTING IN POS FOR SEVERAL MINS. I ASKED THE CAPT IF THIS PICTURE OUT THE WINDOW LOOKED RIGHT BECAUSE I COULD SEE RED LIGHTS THAT LOOKED LIKE CTRLINE LIGHTS AND SOME RED STOP BARS, MAYBE 4 LIGHTS WIDE, EMBEDDED IN THE CONCRETE. IT SEEMED FINE TO HIM AND I THOUGHT WE WERE LINED UP. WHEN CLRED FOR TKOF, IT APPEARED TO ME SOMETHING WASN'T RIGHT WITH THE WAY WE WERE TRAVELING. AFTER CALLING 'SET PWR' AND I COULD SEE LIGHTS MOVING, I COULD TELL WE WERE WELL TO THE R OF THE RWY 7L CTRLINE. IN FACT, THE CAPT INITIALLY HAD LINED UP WITH THE RWY EDGE LIGHTS BECAUSE THERE ARE NO CTRLINE LIGHTS FOR THAT RWY. I ADDED L RUDDER AS IT BECAME CLR WHAT THE SIT WAS. THE CAPT INITIALLY QUERIED MY L RUDDER INPUT THEN REALIZED AFTERWARDS WHAT THE SIT WAS. FORTUNATELY, THE AREA OF THAT RWY INTXN IS ALL CONCRETE AND WE TOOK OFF WITHOUT INCIDENT.

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.