An air carrier medium large transport took off without airways clearance.

Attributes
ACN	247645
Time
Date	199307
Day	Fri
Local Time Of Day	1801 To 2400
Place
Locale Reference	airport : sfo
State Reference	CA
Altitude	agl bound lower : 0 agl bound upper : 0
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tracon : sfo
Operator	common carrier : air carrier
Make Model Name	Medium Large Transport, Low Wing, 2 Turbojet Eng
Navigation In Use	Other Other
Flight Phase	climbout : initial ground : preflight
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : flight engineer pilot : atp pilot : commercial pilot : instrument
Experience	flight time last 90 days : 250 flight time total : 20000 flight time type : 250
ASRS Report	247645
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : instrument pilot : commercial
Events
Anomaly	non adherence : published procedure non adherence : far other anomaly other
Independent Detector	other flight crewa
Resolutory Action	none taken : anomaly accepted other
Consequence	Other
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation
Situations
ATC Facility	procedure or policy : unspecified

Narrative:

No clearance was received prior to takeoff. I did not confirm this until after takeoff. I did not check to verify the clearance prior to departure. Departure did not receive a transponder code after takeoff. The first officer and I then realized we had not received a clearance. I called clearance delivery at approximately 5000 ft MSL and shortly after takeoff received the clearance. Both pilots checking and verifying the clearance at the gate would have prevented this incident.

Original NASA ASRS Text

Title: AN ACR MLG TOOK OFF WITHOUT AIRWAYS CLRNC.

Narrative: NO CLRNC WAS RECEIVED PRIOR TO TKOF. I DID NOT CONFIRM THIS UNTIL AFTER TKOF. I DID NOT CHK TO VERIFY THE CLRNC PRIOR TO DEP. DEP DID NOT RECEIVE A XPONDER CODE AFTER TKOF. THE FO AND I THEN REALIZED WE HAD NOT RECEIVED A CLRNC. I CALLED CLRNC DELIVERY AT APPROX 5000 FT MSL AND SHORTLY AFTER TKOF RECEIVED THE CLRNC. BOTH PLTS CHKING AND VERIFYING THE CLRNC AT THE GATE WOULD HAVE PREVENTED THIS INCIDENT.

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.