Flight crew drifted off track on initial climb out after takeoff on a parallel runway.

Attributes
ACN	301290
Time
Date	199504
Day	Wed
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : lax
State Reference	CA
Altitude	agl bound lower : 0 agl bound upper : 1000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tracon : lax
Operator	general aviation : corporate
Make Model Name	Any Unknown or Unlisted Aircraft Manufacturer
Operating Under FAR Part	Part 91
Flight Phase	climbout : takeoff climbout : initial
Route In Use	departure other
Flight Plan	IFR
Aircraft 2
Make Model Name	Any Unknown or Unlisted Aircraft Manufacturer
Operating Under FAR Part	other : unknown
Flight Phase	climbout : initial climbout : takeoff
Route In Use	departure other
Person 1
Affiliation	Other
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Experience	flight time last 90 days : 100 flight time total : 4000 flight time type : 1000
ASRS Report	301290
Person 2
Affiliation	Other
Function	flight crew : first officer
Qualification	pilot : commercial pilot : instrument
Events
Anomaly	inflight encounter : weather non adherence : clearance other spatial deviation
Independent Detector	other flight crewa
Resolutory Action	none taken : anomaly accepted
Consequence	Other
Supplementary
Primary Problem	Weather
Air Traffic Incident	Pilot Deviation

Narrative:

On takeoff from lax on parallel runways, the controller questioned our heading. We were on right side and an aircraft was taking off on left. We seemed to be drifting left as if the directional gyroscope was off (slaved unit). There was no conflict or evasive maneuver required by either aircraft.

Original NASA ASRS Text

Title: FLC DRIFTED OFF TRACK ON INITIAL CLBOUT AFTER TKOF ON A PARALLEL RWY.

Narrative: ON TKOF FROM LAX ON PARALLEL RWYS, THE CTLR QUESTIONED OUR HDG. WE WERE ON R SIDE AND AN ACFT WAS TAKING OFF ON L. WE SEEMED TO BE DRIFTING L AS IF THE DIRECTIONAL GYROSCOPE WAS OFF (SLAVED UNIT). THERE WAS NO CONFLICT OR EVASIVE MANEUVER REQUIRED BY EITHER ACFT.

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.