Air carrier medium large transport took off on ground control frequency.

Attributes
ACN	292476
Time
Date	199412
Day	Fri
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : dfw
State Reference	TX
Altitude	agl single value : 0 msl single value : 7000
Environment
Flight Conditions	VMC
Light	Dawn
Aircraft 1
Controlling Facilities	tower : dfw
Operator	common carrier : air carrier
Make Model Name	Commercial Fixed Wing
Operating Under FAR Part	Part 121
Navigation In Use	Other
Flight Phase	climbout : takeoff ground other : taxi
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain observation : company check pilot
Qualification	pilot : atp pilot : flight engineer pilot : cfi
Experience	flight time last 90 days : 250 flight time total : 14000 flight time type : 3000
ASRS Report	292476
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer instruction : trainee
Qualification	pilot : instrument pilot : commercial
Events
Anomaly	other anomaly other
Independent Detector	other flight crewa
Resolutory Action	other
Consequence	faa : reviewed incident with flight crew
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation
Situations
ATC Facility	procedure or policy : unspecified

Narrative:

We taxied out of dfw at XA00 am. 1 controller was working tower and ground. I was training a new first officer. He was working the radios while I taxied the aircraft. When we reached the end of runway 36R, I told him to switch the frequency to tower. The next thing I heard was cleared for takeoff. After takeoff, I was waiting for a frequency change to departure and instead heard a ground instruction. The first officer had not switched to tower and the controller had given us takeoff clearance over the ground frequency. A new voice was on ground. They had split the frequency during our takeoff. Between the time I waited for the frequency change and the time to find the correct tower frequency and contact departure, we had climbed to 7000 ft on our way to 10000 ft and traveled 7 mi north of dfw. The remainder of the flight was normal. We had additional instruction on radio work during the remainder of the trip.

Original NASA ASRS Text

Title: ACR MLG TOOK OFF ON GND CTL FREQ.

Narrative: WE TAXIED OUT OF DFW AT XA00 AM. 1 CTLR WAS WORKING TWR AND GND. I WAS TRAINING A NEW FO. HE WAS WORKING THE RADIOS WHILE I TAXIED THE ACFT. WHEN WE REACHED THE END OF RWY 36R, I TOLD HIM TO SWITCH THE FREQ TO TWR. THE NEXT THING I HEARD WAS CLRED FOR TKOF. AFTER TKOF, I WAS WAITING FOR A FREQ CHANGE TO DEP AND INSTEAD HEARD A GND INSTRUCTION. THE FO HAD NOT SWITCHED TO TWR AND THE CTLR HAD GIVEN US TKOF CLRNC OVER THE GND FREQ. A NEW VOICE WAS ON GND. THEY HAD SPLIT THE FREQ DURING OUR TKOF. BTWN THE TIME I WAITED FOR THE FREQ CHANGE AND THE TIME TO FIND THE CORRECT TWR FREQ AND CONTACT DEP, WE HAD CLBED TO 7000 FT ON OUR WAY TO 10000 FT AND TRAVELED 7 MI N OF DFW. THE REMAINDER OF THE FLT WAS NORMAL. WE HAD ADDITIONAL INSTRUCTION ON RADIO WORK DURING THE REMAINDER OF THE TRIP.

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.