Pilot of an light transport sel fire depressor aircraft took off on an uncontrolled airport runway w...

Attributes
ACN	276088
Time
Date	199406
Day	Thu
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : 1v5
State Reference	CO
Altitude	agl bound lower : 0 agl bound upper : 500
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tower : ipt
Operator	other
Make Model Name	AG-CAT Turbo
Operating Under FAR Part	Part 91
Flight Phase	climbout : takeoff
Flight Plan	VFR
Aircraft 2
Operator	general aviation : personal
Make Model Name	PA-18/19 Super Cub
Operating Under FAR Part	Part 91
Flight Phase	ground other : taxi landing other
Person 1
Affiliation	government other
Function	flight crew : single pilot
Qualification	pilot : cfi pilot : commercial pilot : instrument
Experience	flight time last 90 days : 150 flight time total : 14750 flight time type : 250
ASRS Report	276088
Person 2
Affiliation	Other
Function	flight crew : single pilot
Qualification	pilot : private
Events
Anomaly	conflict : ground critical conflict : nmac incursion : runway non adherence : far
Independent Detector	other flight crewa
Resolutory Action	none taken : anomaly accepted
Consequence	Other
Miss Distance	horizontal : 500 vertical : 50
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

I had been dispatched to a wild fire about 5 mi west of the boulder, co, airport and announced on CTAF that I was taxiing to runway 26 for takeoff and that I was going to a fire. A plane on downwind at that time announced 'downwind with intent to land boulder.' I repeated my announcement and that there was a fire, thinking that he might extend and allow me to go. He announced turning base and I held short of the runway as I didn't think I had time to go. The plane ( a cub) landed and rolled by 2 turnoffs and proceeded to taxi the full length of the runway and exited the runway at the far end. After he was down I announced 'position and hold' on runway 27 and expected him to turn off. I probably let the sight of the smoke from the fire and my impatience with the plane's continued presence on the runway (which I now think was deliberate) cause me to start my takeoff roll before the other aircraft was clear of the runway. I announced 'rolling on 26' and started. As I rolled and he continued to stay on the runway it occurred to me that he might have stalled. I always have the dump doors armed on takeoff and I was prepared to dump the entire 800 gallons of water if he didn't clear. He finally turned off when I was about 600 ft from him. I continued my takeoff and went to the fire. At no time do I feel there was a hazardous situation in that by dumping (pure water) I could have cleared the end of the runway by 100's of ft. I am sure that my plane was a shock to him as I went by and I do regret the incident. I simply will not permit it to happen again.

Original NASA ASRS Text

Title: PLT OF AN LTT SEL FIRE DEPRESSOR ACFT TOOK OFF ON AN UNCTLED ARPT RWY WHEN A LNDG ACFT HAD NOT YET EXITED THE RWY.

Narrative: I HAD BEEN DISPATCHED TO A WILD FIRE ABOUT 5 MI W OF THE BOULDER, CO, ARPT AND ANNOUNCED ON CTAF THAT I WAS TAXIING TO RWY 26 FOR TKOF AND THAT I WAS GOING TO A FIRE. A PLANE ON DOWNWIND AT THAT TIME ANNOUNCED 'DOWNWIND WITH INTENT TO LAND BOULDER.' I REPEATED MY ANNOUNCEMENT AND THAT THERE WAS A FIRE, THINKING THAT HE MIGHT EXTEND AND ALLOW ME TO GO. HE ANNOUNCED TURNING BASE AND I HELD SHORT OF THE RWY AS I DIDN'T THINK I HAD TIME TO GO. THE PLANE ( A CUB) LANDED AND ROLLED BY 2 TURNOFFS AND PROCEEDED TO TAXI THE FULL LENGTH OF THE RWY AND EXITED THE RWY AT THE FAR END. AFTER HE WAS DOWN I ANNOUNCED 'POS AND HOLD' ON RWY 27 AND EXPECTED HIM TO TURN OFF. I PROBABLY LET THE SIGHT OF THE SMOKE FROM THE FIRE AND MY IMPATIENCE WITH THE PLANE'S CONTINUED PRESENCE ON THE RWY (WHICH I NOW THINK WAS DELIBERATE) CAUSE ME TO START MY TKOF ROLL BEFORE THE OTHER ACFT WAS CLR OF THE RWY. I ANNOUNCED 'ROLLING ON 26' AND STARTED. AS I ROLLED AND HE CONTINUED TO STAY ON THE RWY IT OCCURRED TO ME THAT HE MIGHT HAVE STALLED. I ALWAYS HAVE THE DUMP DOORS ARMED ON TKOF AND I WAS PREPARED TO DUMP THE ENTIRE 800 GALLONS OF WATER IF HE DIDN'T CLR. HE FINALLY TURNED OFF WHEN I WAS ABOUT 600 FT FROM HIM. I CONTINUED MY TKOF AND WENT TO THE FIRE. AT NO TIME DO I FEEL THERE WAS A HAZARDOUS SIT IN THAT BY DUMPING (PURE WATER) I COULD HAVE CLRED THE END OF THE RWY BY 100'S OF FT. I AM SURE THAT MY PLANE WAS A SHOCK TO HIM AS I WENT BY AND I DO REGRET THE INCIDENT. I SIMPLY WILL NOT PERMIT IT TO HAPPEN AGAIN.

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.

Pilot of an light transport sel fire depressor aircraft took off on an uncontrolled airport runway when a landing aircraft had not yet exited the runway.