<< >> NASA ASRS Report 512770, May 2001

A B777 first officer, departing lfpg, misunderstood day's instructions and turned off of the assigned SID.

Attributes
ACN	512770
Time
Date	200105
Day	Wed
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : lfpg.airport
State Reference	FO
Altitude	msl single value : 10000
Environment
Light	Daylight
Aircraft 1
Controlling Facilities	tower : pns.tower
Operator	common carrier : air carrier
Make Model Name	B777 Undifferentiated or Other Model
Flight Phase	climbout : intermediate altitude
Route In Use	departure : on vectors departure sid : omoga
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : atp
ASRS Report	512770
Events
Anomaly	non adherence : company policies non adherence : published procedure non adherence : far non adherence : clearance other spatial deviation
Resolutory Action	controller : issued new clearance
Supplementary
Problem Areas	Flight Crew Human Performance
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

Departed runway 9L lfpg in cavok conditions on omoga departure. At 2000 ft, departure controller told us radar idented, climb to FL100, direct omoga. I was PF and captain read back FL100, direct omoga. Upon rolling out direct omoga, controller advised us we had turned inside the marker and gave us a 30 degree vector back towards the northeast. Obviously, the intent of the departing controller was for us to fly the entire departure. We assumed the controller was turning us inside a B737 that had departed in front of us and that we were overtaking.

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Original NASA ASRS Text

Title: A B777 FO, DEPARTING LFPG, MISUNDERSTOOD DAY'S INSTRUCTIONS AND TURNED OFF OF THE ASSIGNED SID.

Narrative: DEPARTED RWY 9L LFPG IN CAVOK CONDITIONS ON OMOGA DEP. AT 2000 FT, DEP CTLR TOLD US RADAR IDENTED, CLB TO FL100, DIRECT OMOGA. I WAS PF AND CAPT READ BACK FL100, DIRECT OMOGA. UPON ROLLING OUT DIRECT OMOGA, CTLR ADVISED US WE HAD TURNED INSIDE THE MARKER AND GAVE US A 30 DEG VECTOR BACK TOWARDS THE NE. OBVIOUSLY, THE INTENT OF THE DEPARTING CTLR WAS FOR US TO FLY THE ENTIRE DEP. WE ASSUMED THE CTLR WAS TURNING US INSIDE A B737 THAT HAD DEPARTED IN FRONT OF US AND THAT WE WERE OVERTAKING.

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.