PIC of an air carrier medium large transport pushes back from gate without clearance from ground controller. Says he was rushed and used the wrong frequency.

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Attributes
ACN	389130
Time
Date	199712
Day	Tue
Local Time Of Day	1801 To 2400
Place
Locale Reference	airport : pdx
State Reference	PR
Altitude	agl bound lower : 0 agl bound upper : 0
Environment
Flight Conditions	VMC
Light	Night
Aircraft 1
Operator	common carrier : air carrier
Make Model Name	Commercial Fixed Wing
Operating Under FAR Part	Part 121
Flight Phase	ground : preflight other
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp pilot : cfi pilot : flight engineer
Experience	flight time last 90 days : 200 flight time total : 12000 flight time type : 5000
ASRS Report	389130
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : commercial pilot : instrument
Events
Anomaly	non adherence : far non adherence : published procedure other anomaly other
Independent Detector	other controllera other flight crewa
Resolutory Action	none taken : detected after the fact
Consequence	Other
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

Pushed back at pdx without calling ground. I try to emphasize to not rush the pushback. Did not feel rushed but for some reason failed to call ground on proper frequency. Used 121.7 instead of 121.9. Obviously got no response from pdx. Reasons that could have led to oversight: lengthy communication with ramp about loading late bags, slightly unusual gate location, first departure of day late in the evening.

Original NASA ASRS Text

Title: PIC OF AN ACR MLG PUSHES BACK FROM GATE WITHOUT CLRNC FROM GND CTLR. SAYS HE WAS RUSHED AND USED THE WRONG FREQ.

Narrative: PUSHED BACK AT PDX WITHOUT CALLING GND. I TRY TO EMPHASIZE TO NOT RUSH THE PUSHBACK. DID NOT FEEL RUSHED BUT FOR SOME REASON FAILED TO CALL GND ON PROPER FREQ. USED 121.7 INSTEAD OF 121.9. OBVIOUSLY GOT NO RESPONSE FROM PDX. REASONS THAT COULD HAVE LED TO OVERSIGHT: LENGTHY COM WITH RAMP ABOUT LOADING LATE BAGS, SLIGHTLY UNUSUAL GATE LOCATION, FIRST DEP OF DAY LATE IN THE EVENING.

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.