<< >> NASA ASRS Report 145632, May 1990

Potential conflict between air carrier light transport and ground vehicle on runway at non tower airport.

Attributes
ACN	145632
Time
Date	199005
Day	Thu
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : fca
State Reference	MT
Altitude	agl bound lower : 0 agl bound upper : 0
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Operator	common carrier : air taxi
Make Model Name	Light Transport, Low Wing, 2 Turboprop Eng
Flight Phase	climbout : takeoff
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Experience	flight time last 90 days : 200
ASRS Report	145632
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : instrument pilot : commercial
Events
Anomaly	conflict : ground critical incursion : runway other anomaly other
Independent Detector	other flight crewa
Resolutory Action	none taken : anomaly accepted
Consequence	Other
Supplementary
Primary Problem	Ambiguous
Air Traffic Incident	other

Narrative:

Prior to takeoff we announced our intentions for departures on unicom and we received a response from a truck that hadn't cleared the runway. As we watched the truck clear we announced intentions again to depart and there was no response, so we advanced power for takeoff and began rolling. During the takeoff roll I looked up and noticed a veh was still on the runway. We were at vr when we noticed the truck and it appeared to be still quite a ways down the runway, so we continued and there was no conflict. There appeared to be no light beacon on the veh and there was no response on unicom when we announced our intentions. We figure from the approach end he was 5000-6000' down the runway, so we had room to abort if need be, but it was a tense situation due to lack of communication and the restriction visibility due to heat waves. Also it was a dark colored veh and blended in well with the runway. Even after we flew over him, there was no response on the radio.

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Original NASA ASRS Text

Title: POTENTIAL CONFLICT BETWEEN ACR LTT AND GND VEHICLE ON RWY AT NON TWR ARPT.

Narrative: PRIOR TO TKOF WE ANNOUNCED OUR INTENTIONS FOR DEPS ON UNICOM AND WE RECEIVED A RESPONSE FROM A TRUCK THAT HADN'T CLRED THE RWY. AS WE WATCHED THE TRUCK CLR WE ANNOUNCED INTENTIONS AGAIN TO DEPART AND THERE WAS NO RESPONSE, SO WE ADVANCED PWR FOR TKOF AND BEGAN ROLLING. DURING THE TKOF ROLL I LOOKED UP AND NOTICED A VEH WAS STILL ON THE RWY. WE WERE AT VR WHEN WE NOTICED THE TRUCK AND IT APPEARED TO BE STILL QUITE A WAYS DOWN THE RWY, SO WE CONTINUED AND THERE WAS NO CONFLICT. THERE APPEARED TO BE NO LIGHT BEACON ON THE VEH AND THERE WAS NO RESPONSE ON UNICOM WHEN WE ANNOUNCED OUR INTENTIONS. WE FIGURE FROM THE APCH END HE WAS 5000-6000' DOWN THE RWY, SO WE HAD ROOM TO ABORT IF NEED BE, BUT IT WAS A TENSE SITUATION DUE TO LACK OF COM AND THE RESTRICTION VISIBILITY DUE TO HEAT WAVES. ALSO IT WAS A DARK COLORED VEH AND BLENDED IN WELL WITH THE RWY. EVEN AFTER WE FLEW OVER HIM, THERE WAS NO RESPONSE ON THE RADIO.

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.