<< >> NASA ASRS Report 417970, October 1998

Flight crew of widebody transport aircraft taxiing misinterps ramp clearance and ground clearance and taxies without clearance.

Attributes
ACN	417970
Time
Date	199810
Day	Sat
Local Time Of Day	1801 To 2400
Place
Locale Reference	atc facility : lax airport : lax
State Reference	CA
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
Navigation In Use	Other Other
Flight Phase	ground other : taxi
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Experience	flight time last 90 days : 230 flight time type : 3400
ASRS Report	417970
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : instrument pilot : commercial
Events
Anomaly	non adherence : far other anomaly other
Independent Detector	other controllera
Resolutory Action	other
Consequence	Other
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

Long duty day. Had deadheaded to mco from lax to fly right back after landing. We were held between the runways. After a period of time, got clearance to cross runway and contact ground. Ground asked which gate we had, and we responded with the gate number. At that time, there were 2 aircraft in our alley. Ground asked if our ramp control wanted for us to wait for both aircraft to exit or after the first one. The first officer contacted our ramp control, who indicated that the second aircraft would hold for us. Thinking that we had clearance to the gate, I proceeded in. We were unable to contact ground because of congestion on the frequency. That's when ground asked 'why' we were taxiing. In fact, we never got a 'hold position' or 'hold at intersection' from ground. My better knowledge should have told me to hold position until we got clearance from ground. The big thing was that there is another taxiway that we had to cross that taxiing aircraft use and were using. Ground control should have given a 'hold position.'

Related reports:

• Air carrier medium large transport flight crew misinterps TR...
• Air carrier medium large transport flight crew misinterps cl...

	Enter your search terms Submit search form
	Web www.37000feet.com

Original NASA ASRS Text

Title: FLC OF WDB ACFT TAXIING MISINTERPS RAMP CLRNC AND GND CLRNC AND TAXIES WITHOUT CLRNC.

Narrative: LONG DUTY DAY. HAD DEADHEADED TO MCO FROM LAX TO FLY RIGHT BACK AFTER LNDG. WE WERE HELD BTWN THE RWYS. AFTER A PERIOD OF TIME, GOT CLRNC TO CROSS RWY AND CONTACT GND. GND ASKED WHICH GATE WE HAD, AND WE RESPONDED WITH THE GATE NUMBER. AT THAT TIME, THERE WERE 2 ACFT IN OUR ALLEY. GND ASKED IF OUR RAMP CTL WANTED FOR US TO WAIT FOR BOTH ACFT TO EXIT OR AFTER THE FIRST ONE. THE FO CONTACTED OUR RAMP CTL, WHO INDICATED THAT THE SECOND ACFT WOULD HOLD FOR US. THINKING THAT WE HAD CLRNC TO THE GATE, I PROCEEDED IN. WE WERE UNABLE TO CONTACT GND BECAUSE OF CONGESTION ON THE FREQ. THAT'S WHEN GND ASKED 'WHY' WE WERE TAXIING. IN FACT, WE NEVER GOT A 'HOLD POS' OR 'HOLD AT INTXN' FROM GND. MY BETTER KNOWLEDGE SHOULD HAVE TOLD ME TO HOLD POS UNTIL WE GOT CLRNC FROM GND. THE BIG THING WAS THAT THERE IS ANOTHER TXWY THAT WE HAD TO CROSS THAT TAXIING ACFT USE AND WERE USING. GND CTL SHOULD HAVE GIVEN A 'HOLD POS.'

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.