An air carrier freighter taxied without clearance.

Attributes
ACN	278541
Time
Date	199407
Day	Fri
Local Time Of Day	1801 To 2400
Place
Locale Reference	airport : pit
State Reference	PA
Altitude	agl bound lower : 0 agl bound upper : 0
Environment
Flight Conditions	IMC
Light	Night
Aircraft 1
Operator	common carrier : air carrier
Make Model Name	Large Transport, Low Wing, 3 Turbojet Eng
Navigation In Use	Other
Flight Phase	ground other : taxi
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : instrument pilot : commercial pilot : atp
Experience	flight time last 90 days : 62 flight time total : 7300 flight time type : 670
ASRS Report	278541
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Events
Anomaly	non adherence : clearance non adherence : far other anomaly other
Independent Detector	other controllera
Resolutory Action	none taken : detected after the fact
Consequence	faa : reviewed incident with flight crew
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

After pushback and engine starts we proceeded taxiing from cargo building to active runway 28R via taxiway N2. Due to thunderstorms nearby the airport. We had the WX-radar on as we exited the cargo ramp. Discussing best departure heading, my attention got diverted to the WX and I forgot to call ground for taxi. Neither one of us 3 in the cockpit realized this until I contacted tower at the end of runway 28R, and tower asked us if we had talked to ground.

Original NASA ASRS Text

Title: AN ACR FREIGHTER TAXIED WITHOUT CLRNC.

Narrative: AFTER PUSHBACK AND ENG STARTS WE PROCEEDED TAXIING FROM CARGO BUILDING TO ACTIVE RWY 28R VIA TXWY N2. DUE TO TSTMS NEARBY THE ARPT. WE HAD THE WX-RADAR ON AS WE EXITED THE CARGO RAMP. DISCUSSING BEST DEP HDG, MY ATTN GOT DIVERTED TO THE WX AND I FORGOT TO CALL GND FOR TAXI. NEITHER ONE OF US 3 IN THE COCKPIT REALIZED THIS UNTIL I CONTACTED TWR AT THE END OF RWY 28R, AND TWR ASKED US IF WE HAD TALKED TO GND.

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.