CRJ200 experiences track deviation on departure due to incorrect FMS initialization.

Attributes
ACN	739586
Time
Date	200705
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : atl.airport
State Reference	GA
Altitude	msl bound lower : 3000 msl bound upper : 4000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tracon : a80.tracon
Operator	common carrier : air carrier
Make Model Name	Regional Jet 200 ER&LR
Operating Under FAR Part	Part 121
Flight Plan	IFR
Aircraft 2
Navigation In Use	other
Person 1
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : atp
Experience	flight time last 90 days : 216 flight time total : 1650 flight time type : 1200
ASRS Report	739586
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Experience	flight time last 90 days : 210 flight time total : 10000 flight time type : 6000
ASRS Report	738910
Events
Anomaly	aircraft equipment problem : critical non adherence : published procedure non adherence : clearance other spatial deviation
Independent Detector	other controllera other flight crewa
Resolutory Action	controller : issued advisory controller : issued new clearance
Supplementary
Problem Areas	Aircraft Flight Crew Human Performance
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

Incorrect FMS position caused wrong turn on departure out of atl. ATC quickly corrected with a different heading and altitude. No traffic conflicts were noted. FMS may not have been initialized properly causing position to be incorrect and shift. Once position was fixed by VOR; FMS was reinitialized without further trouble. Factors include fatigue and rushing for departure sequencing by tower. Course was shown on primary display but failed to show on secondary. FMS failed to update or updated incorrectly when (takeoff/go around) buttons were depressed. FMS is supposed to update position when pressed prior to takeoff roll. It was assumed and appeared that the FMS was correct until turn was started in wrong direction. PF corrected and ATC noticed incorrect course.

Original NASA ASRS Text

Title: CRJ200 EXPERIENCES TRACK DEV ON DEP DUE TO INCORRECT FMS INITIALIZATION.

Narrative: INCORRECT FMS POS CAUSED WRONG TURN ON DEP OUT OF ATL. ATC QUICKLY CORRECTED WITH A DIFFERENT HDG AND ALT. NO TFC CONFLICTS WERE NOTED. FMS MAY NOT HAVE BEEN INITIALIZED PROPERLY CAUSING POS TO BE INCORRECT AND SHIFT. ONCE POS WAS FIXED BY VOR; FMS WAS REINITIALIZED WITHOUT FURTHER TROUBLE. FACTORS INCLUDE FATIGUE AND RUSHING FOR DEP SEQUENCING BY TWR. COURSE WAS SHOWN ON PRIMARY DISPLAY BUT FAILED TO SHOW ON SECONDARY. FMS FAILED TO UPDATE OR UPDATED INCORRECTLY WHEN (TKOF/GAR) BUTTONS WERE DEPRESSED. FMS IS SUPPOSED TO UPDATE POS WHEN PRESSED PRIOR TO TKOF ROLL. IT WAS ASSUMED AND APPEARED THAT THE FMS WAS CORRECT UNTIL TURN WAS STARTED IN WRONG DIRECTION. PF CORRECTED AND ATC NOTICED INCORRECT COURSE.

Data retrieved from NASA's ASRS site as of January 2009 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.