An air taxi freighter flight performs an unauthorized takeoff at adq, ak.

Attributes
ACN	459700
Time
Date	200001
Day	Sat
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : adq.airport
State Reference	AK
Altitude	agl single value : 0
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tower : adq.tower
Operator	common carrier : air taxi
Make Model Name	Small Transport
Operating Under FAR Part	Part 135
Flight Phase	climbout : takeoff ground : position and hold ground : takeoff roll
Flight Plan	VFR
Person 1
Affiliation	company : air taxi
Function	flight crew : captain oversight : pic
Qualification	pilot : atp pilot : commercial pilot : instrument pilot : multi engine
Experience	flight time last 90 days : 100 flight time total : 2000 flight time type : 700
ASRS Report	459700
Person 2
Affiliation	company : air taxi
Function	flight crew : first officer
Qualification	pilot : instrument pilot : commercial pilot : multi engine
Events
Anomaly	airspace violation : entry non adherence : far non adherence : clearance other anomaly other
Independent Detector	other controllera other flight crewa
Resolutory Action	none taken : anomaly accepted
Consequence	faa : reviewed incident with flight crew other Other
Supplementary
Problem Areas	Airport Environmental Factor Flight Crew Human Performance
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

First officer was PF and talking on the radio, while I was running checklists. She advised me we were cleared for takeoff and she began the takeoff roll. I was unclr about the clearance, so I doublechked. We were not cleared. I tried to abort takeoff, but runway was covered with snow and braking action was poor. Midfield, I decided to continue takeoff citing there was no traffic in the area, and did not want to put the aircraft in the ocean. Tower controller later advised me that she did have our clearance to take off, there was no traffic, and we were ok. Corrective actions taken were formal discipline of first officer. I will take the time to slow down and doublechk clrncs.

Original NASA ASRS Text

Title: AN AIR TAXI FREIGHTER FLT PERFORMS AN UNAUTH TKOF AT ADQ, AK.

Narrative: FO WAS PF AND TALKING ON THE RADIO, WHILE I WAS RUNNING CHKLISTS. SHE ADVISED ME WE WERE CLRED FOR TKOF AND SHE BEGAN THE TKOF ROLL. I WAS UNCLR ABOUT THE CLRNC, SO I DOUBLECHKED. WE WERE NOT CLRED. I TRIED TO ABORT TKOF, BUT RWY WAS COVERED WITH SNOW AND BRAKING ACTION WAS POOR. MIDFIELD, I DECIDED TO CONTINUE TKOF CITING THERE WAS NO TFC IN THE AREA, AND DID NOT WANT TO PUT THE ACFT IN THE OCEAN. TWR CTLR LATER ADVISED ME THAT SHE DID HAVE OUR CLRNC TO TAKE OFF, THERE WAS NO TFC, AND WE WERE OK. CORRECTIVE ACTIONS TAKEN WERE FORMAL DISCIPLINE OF FO. I WILL TAKE THE TIME TO SLOW DOWN AND DOUBLECHK CLRNCS.

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.