Flight crew of light transport commuter started takeoff without clearance.

Attributes
ACN	135745
Time
Date	199002
Day	Thu
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : alb
State Reference	NY
Altitude	agl bound lower : 0 agl bound upper : 0
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Operator	common carrier : air carrier
Make Model Name	Light Transport, Low Wing, 2 Turboprop Eng
Flight Phase	climbout : takeoff other
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : cfi pilot : commercial pilot : instrument
Experience	flight time last 90 days : 120 flight time total : 1500 flight time type : 120
ASRS Report	135745
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : instrument pilot : atp pilot : commercial
Events
Anomaly	non adherence : clearance
Independent Detector	other controllera
Resolutory Action	controller : issued new clearance
Consequence	Other
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

Flight alb to syr was cleared into position and hold. I acknowledged the clearance to position and hold. As we lined up onto the runway the captain applied takeoff power beginning the takeoff roll. Before I could act, the tower yelled stop over the radio. I applied full braking and the captain removed power. We had rolled less than 500'. The tower then gave us takeoff clearance and we took off from that point. The captain said, 'I asked you if we were cleared for takeoff, and when you did not answer I thought that meant we were cleared to take off.' I also believe he was in a rush and 'heard' what he wanted to hear. Cockpit crew coordination does not work with 1 participant.

Original NASA ASRS Text

Title: FLT CREW OF LTT COMMUTER STARTED TKOF WITHOUT CLRNC.

Narrative: FLT ALB TO SYR WAS CLRED INTO POS AND HOLD. I ACKNOWLEDGED THE CLRNC TO POS AND HOLD. AS WE LINED UP ONTO THE RWY THE CAPT APPLIED TKOF PWR BEGINNING THE TKOF ROLL. BEFORE I COULD ACT, THE TWR YELLED STOP OVER THE RADIO. I APPLIED FULL BRAKING AND THE CAPT REMOVED PWR. WE HAD ROLLED LESS THAN 500'. THE TWR THEN GAVE US TKOF CLRNC AND WE TOOK OFF FROM THAT POINT. THE CAPT SAID, 'I ASKED YOU IF WE WERE CLRED FOR TKOF, AND WHEN YOU DID NOT ANSWER I THOUGHT THAT MEANT WE WERE CLRED TO TAKE OFF.' I ALSO BELIEVE HE WAS IN A RUSH AND 'HEARD' WHAT HE WANTED TO HEAR. COCKPIT CREW COORD DOES NOT WORK WITH 1 PARTICIPANT.

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.