MD82 aircraft pushed back from gate and was advised afterward by ground controller that ground controller clearance was required. Flight crew believes that where they were pushed to didn't require clearance.

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Attributes
ACN	395561
Time
Date	199803
Day	Tue
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : dtw
State Reference	MI
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	MD-82
Operating Under FAR Part	Part 121
Navigation In Use	Other Other
Flight Phase	ground : preflight
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp pilot : instrument pilot : flight engineer pilot : commercial pilot : cfi
Experience	flight time last 90 days : 268 flight time total : 29000 flight time type : 12000
ASRS Report	395561
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : atp pilot : cfi
Experience	flight time last 90 days : 90 flight time total : 4800 flight time type : 200
ASRS Report	395560
Events
Anomaly	other anomaly other
Independent Detector	other controllera
Resolutory Action	none taken : detected after the fact
Consequence	Other
Supplementary
Primary Problem	Airport
Air Traffic Incident	other
Situations
Airport	procedure or policy : unspecified

Narrative:

After MD82 pushback from gate, ground control advised a push clearance was required. However, according to the airport diagram (commercial chart) it shows otherwise, when being pushed to circle. Callback conversation with dtw tower revealed the following information: confirmed with the supervisor that the subject gate did require ground controller clearance. Apparently gates that are at the end of the concourses and in close proximity to the txwys require ground controller clearance but gates close into the hub do not.

Original NASA ASRS Text

Title: MD82 ACFT PUSHED BACK FROM GATE AND WAS ADVISED AFTERWARD BY GND CTLR THAT GND CTLR CLRNC WAS REQUIRED. FLC BELIEVES THAT WHERE THEY WERE PUSHED TO DIDN'T REQUIRE CLRNC.

Narrative: AFTER MD82 PUSHBACK FROM GATE, GND CTL ADVISED A PUSH CLRNC WAS REQUIRED. HOWEVER, ACCORDING TO THE ARPT DIAGRAM (COMMERCIAL CHART) IT SHOWS OTHERWISE, WHEN BEING PUSHED TO CIRCLE. CALLBACK CONVERSATION WITH DTW TWR REVEALED THE FOLLOWING INFO: CONFIRMED WITH THE SUPVR THAT THE SUBJECT GATE DID REQUIRE GND CTLR CLRNC. APPARENTLY GATES THAT ARE AT THE END OF THE CONCOURSES AND IN CLOSE PROX TO THE TXWYS REQUIRE GND CTLR CLRNC BUT GATES CLOSE INTO THE HUB DO NOT.

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.