Pilot of PA34 takeoff pie without proper clearance.

Attributes
ACN	447910
Time
Date	199909
Day	Fri
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : pie.airport
State Reference	FL
Altitude	agl single value : 0
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Operator	general aviation : personal
Make Model Name	PA-34-200T Turbo Seneca II
Operating Under FAR Part	Part 91
Flight Phase	climbout : intermediate altitude climbout : takeoff climbout : initial
Route In Use	departure : vfr
Flight Plan	None
Person 1
Affiliation	other
Function	flight crew : single pilot
Qualification	pilot : multi engine pilot : instrument pilot : cfi pilot : commercial
Experience	flight time last 90 days : 100 flight time total : 1300 flight time type : 30
ASRS Report	447910
Person 2
Affiliation	government : faa
Function	controller : ground
Qualification	controller : non radar
Events
Anomaly	non adherence : clearance non adherence : far
Independent Detector	other controllera other flight crewa
Resolutory Action	controller : issued new clearance flight crew : became reoriented none taken : detected after the fact
Consequence	faa : reviewed incident with flight crew
Supplementary
Problem Areas	Flight Crew Human Performance
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

Was cleared by ground to taxi to runway 35R full length. I taxied onto runway 35R and took off without a clearance from tower. Only after wheels up did I notice I was still on ground frequency. I immediately turned to tower frequency and tower asked if I had received a takeoff clearance. I stated no. Tower advised no problem but be careful.

Original NASA ASRS Text

Title: PLT OF PA34 TKOF PIE WITHOUT PROPER CLRNC.

Narrative: WAS CLRED BY GND TO TAXI TO RWY 35R FULL LENGTH. I TAXIED ONTO RWY 35R AND TOOK OFF WITHOUT A CLRNC FROM TWR. ONLY AFTER WHEELS UP DID I NOTICE I WAS STILL ON GND FREQ. I IMMEDIATELY TURNED TO TWR FREQ AND TWR ASKED IF I HAD RECEIVED A TKOF CLRNC. I STATED NO. TWR ADVISED NO PROB BUT BE CAREFUL.

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.