<< >> NASA ASRS Report 513400, June 2001

Taxiway incursion as an MD80 PIC moves his aircraft without a clearance when the ramp taxiway area is jammed and the ground control frequency is too congested for a clearance to be obtained.

Attributes
ACN	513400
Time
Date	200106
Day	Sun
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : zzz.airport
State Reference	US
Altitude	agl single value : 0
Environment
Light	Daylight
Aircraft 1
Controlling Facilities	tower : ord.tower
Operator	common carrier : air carrier
Make Model Name	MD-80 Series (DC-9-80) Undifferentiated or Other Model
Flight Phase	ground : taxi
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
ASRS Report	513400
Events
Anomaly	incursion : taxiway non adherence : published procedure non adherence : clearance other anomaly other
Resolutory Action	none taken : unable other
Supplementary
Problem Areas	Environmental Factor Flight Crew Human Performance Airport ATC Human Performance
Primary Problem	Environmental Factor

Narrative:

On taxi in, notified ground of B737 entry while awaiting ramp direction. As we approached, ramp cleared us into the taxiway. Attempted numerous calls to ground to get clearance for taxiway but frequency was jammed as ground was trying to get an MD80 to move up to clear the way for a B757 to clear from runway. If the captain stopped on taxiway he would have blocked all traffic. So, instead of waiting, he decided to continue on to clear the taxi flow. I was unaware, since I'm a new hire, that you needed both ramp and ground control clearance.

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Original NASA ASRS Text

Title: TXWY INCURSION AS AN MD80 PIC MOVES HIS ACFT WITHOUT A CLRNC WHEN THE RAMP TXWY AREA IS JAMMED AND THE GND CTL FREQ IS TOO CONGESTED FOR A CLRNC TO BE OBTAINED.

Narrative: ON TAXI IN, NOTIFIED GND OF B737 ENTRY WHILE AWAITING RAMP DIRECTION. AS WE APCHED, RAMP CLRED US INTO THE TXWY. ATTEMPTED NUMEROUS CALLS TO GND TO GET CLRNC FOR TXWY BUT FREQ WAS JAMMED AS GND WAS TRYING TO GET AN MD80 TO MOVE UP TO CLR THE WAY FOR A B757 TO CLR FROM RWY. IF THE CAPT STOPPED ON TXWY HE WOULD HAVE BLOCKED ALL TFC. SO, INSTEAD OF WAITING, HE DECIDED TO CONTINUE ON TO CLR THE TAXI FLOW. I WAS UNAWARE, SINCE I'M A NEW HIRE, THAT YOU NEEDED BOTH RAMP AND GND CTL 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.