Track deviation after takeoff at lhr, first officer.

Attributes
ACN	466740
Time
Date	200003
Day	Thu
Local Time Of Day	1201 To 1800
Place
State Reference	FO
Altitude	agl bound lower : 1000 agl bound upper : 3000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Operator	common carrier : air carrier
Make Model Name	B767-300 and 300 ER
Operating Under FAR Part	Part 121
Navigation In Use	other
Flight Phase	climbout : initial
Route In Use	departure sid : n/s
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Experience	flight time last 90 days : 250 flight time total : 12500 flight time type : 2500
ASRS Report	466740
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : atp
Events
Anomaly	aircraft equipment problem : less severe non adherence : clearance non adherence : published procedure other spatial deviation
Independent Detector	other flight crewa
Resolutory Action	flight crew : returned to intended or assigned course flight crew : overcame equipment problem flight crew : overrode automation
Supplementary
Problem Areas	Flight Crew Human Performance
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

First officer asked first officer LNAV after takeoff. First officer began the turn following flight director commands but departure track should have been straight ahead for 3 mi before turning. Aircraft was brought back to departure track. Raw data was available but not used to verify LNAV data.

Original NASA ASRS Text

Title: TRACK DEV AFTER TKOF AT LHR, FO.

Narrative: FO ASKED FO LNAV AFTER TKOF. FO BEGAN THE TURN FOLLOWING FLT DIRECTOR COMMANDS BUT DEP TRACK SHOULD HAVE BEEN STRAIGHT AHEAD FOR 3 MI BEFORE TURNING. ACFT WAS BROUGHT BACK TO DEP TRACK. RAW DATA WAS AVAILABLE BUT NOT USED TO VERIFY LNAV DATA.

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.