B35 took off while another aircraft that had just landed was still on runway.

Attributes
ACN	349756
Time
Date	199610
Day	Sat
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : s50
State Reference	WA
Altitude	agl bound lower : 0 agl bound upper : 300
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Operator	general aviation : personal
Make Model Name	Bonanza 35
Operating Under FAR Part	Part 91
Flight Phase	climbout : initial climbout : takeoff
Flight Plan	IFR
Aircraft 2
Make Model Name	Small Aircraft, High Wing, 1 Eng, Fixed Gear
Flight Phase	ground other : taxi landing other
Person 1
Affiliation	Other
Function	flight crew : single pilot
Qualification	pilot : instrument pilot : private
Experience	flight time last 90 days : 12 flight time total : 1500 flight time type : 600
ASRS Report	349756
Person 2
Affiliation	Other
Function	flight crew : single pilot
Events
Anomaly	conflict : ground critical
Independent Detector	other flight crewa
Resolutory Action	flight crew : took evasive action
Consequence	Other
Miss Distance	horizontal : 75 vertical : 300
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

I was awaiting takeoff at S50 runway 34. Several (at runway) 3 training aircraft were in pattern. 2 landed, I pulled into position to start takeoff roll, noticed aircraft taxiing back towards me on sbound taxiway, thought it was the one that just landed. I was busy attempting to get an IFR clearance (on ground) and did not see training aircraft still rolling out on the runway ahead of me. As I broke ground he pulled off runway and stopped with tail nearly at the line near runway. I pulled to the left, he was on the right, to assure ample distance. It was my fault, I thought he had cleared. I attempted to contact pilot to apologize. No luck.

Original NASA ASRS Text

Title: B35 TOOK OFF WHILE ANOTHER ACFT THAT HAD JUST LANDED WAS STILL ON RWY.

Narrative: I WAS AWAITING TKOF AT S50 RWY 34. SEVERAL (AT RWY) 3 TRAINING ACFT WERE IN PATTERN. 2 LANDED, I PULLED INTO POS TO START TKOF ROLL, NOTICED ACFT TAXIING BACK TOWARDS ME ON SBOUND TXWY, THOUGHT IT WAS THE ONE THAT JUST LANDED. I WAS BUSY ATTEMPTING TO GET AN IFR CLRNC (ON GND) AND DID NOT SEE TRAINING ACFT STILL ROLLING OUT ON THE RWY AHEAD OF ME. AS I BROKE GND HE PULLED OFF RWY AND STOPPED WITH TAIL NEARLY AT THE LINE NEAR RWY. I PULLED TO THE L, HE WAS ON THE R, TO ASSURE AMPLE DISTANCE. IT WAS MY FAULT, I THOUGHT HE HAD CLRED. I ATTEMPTED TO CONTACT PLT TO APOLOGIZE. NO LUCK.

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.