Medium large transport pushed back onto active taxiway at lga before receiving a pushback clearance.

Attributes
ACN	142172
Time
Date	199004
Day	Tue
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : lga
State Reference	NY
Altitude	agl bound lower : 0 agl bound upper : 0
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Operator	common carrier : air carrier
Make Model Name	Medium Large Transport, Low Wing, 2 Turbojet Eng
Flight Phase	ground : preflight ground other : taxi
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : instrument pilot : commercial pilot : atp
Experience	flight time last 90 days : 150 flight time total : 8500 flight time type : 6500
ASRS Report	142172
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : instrument pilot : atp pilot : commercial
Events
Anomaly	conflict : ground less severe
Independent Detector	other controllera
Resolutory Action	none taken : anomaly accepted
Consequence	Other
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation
Situations
Airport	other physical facility procedure or policy : unspecified

Narrative:

We called our ramp for published first and then called ground using the phrase, 'flight #, push from gate X.' ground responded with, 'flight push at your discretion, call ready for taxi.' we pushed onto active taxiway zulu and ground control questioned us, saying we were not supposed to be there. We said we had a push clearance. Ground thought our call was only an advisory call. We thought it was a request for pushback clearance.

Original NASA ASRS Text

Title: MLG PUSHED BACK ONTO ACTIVE TXWY AT LGA BEFORE RECEIVING A PUSHBACK CLRNC.

Narrative: WE CALLED OUR RAMP FOR PUBLISHED FIRST AND THEN CALLED GND USING THE PHRASE, 'FLT #, PUSH FROM GATE X.' GND RESPONDED WITH, 'FLT PUSH AT YOUR DISCRETION, CALL READY FOR TAXI.' WE PUSHED ONTO ACTIVE TXWY ZULU AND GND CTL QUESTIONED US, SAYING WE WERE NOT SUPPOSED TO BE THERE. WE SAID WE HAD A PUSH CLRNC. GND THOUGHT OUR CALL WAS ONLY AN ADVISORY CALL. WE THOUGHT IT WAS A REQUEST FOR PUSHBACK CLRNC.

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.