Flight crew of an large transport deviated from assigned track due to ACARS computer generated flight plan and the actual pre departure clearance clearance.

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Attributes
ACN	307680
Time
Date	199506
Day	Tue
Local Time Of Day	1201 To 1800
Place
Locale Reference	atc facility : irw
State Reference	OK
Altitude	msl bound lower : 37000 msl bound upper : 37000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	artcc : zfw
Operator	common carrier : air carrier
Make Model Name	Commercial Fixed Wing
Operating Under FAR Part	Part 121
Navigation In Use	Other Other
Flight Phase	cruise other
Route In Use	enroute : direct enroute airway : zfw
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : instrument pilot : flight engineer pilot : atp pilot : commercial
Experience	flight time last 90 days : 106 flight time total : 14000 flight time type : 106
ASRS Report	307680
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Events
Anomaly	non adherence : far non adherence : clearance other spatial deviation
Independent Detector	other controllera
Resolutory Action	flight crew : returned to intended course or assigned course other
Consequence	Other
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

Company computer generated flight plan showed lax-abq-irw- atl-clt. ATC clearance via pre departure clearance (ACARS) showed lax-abq-irw- tul-as filed-clt. Did not catch discrepancy until irw after turning toward atl vice tul. ACARS generated flight plan did not have the position of route which had been changed from the filed plan enclosed in dashes which is normal procedure.

Original NASA ASRS Text

Title: FLC OF AN LGT DEVIATED FROM ASSIGNED TRACK DUE TO ACARS COMPUTER GENERATED FLT PLAN AND THE ACTUAL PDC CLRNC.

Narrative: COMPANY COMPUTER GENERATED FLT PLAN SHOWED LAX-ABQ-IRW- ATL-CLT. ATC CLRNC VIA PDC (ACARS) SHOWED LAX-ABQ-IRW- TUL-AS FILED-CLT. DID NOT CATCH DISCREPANCY UNTIL IRW AFTER TURNING TOWARD ATL VICE TUL. ACARS GENERATED FLT PLAN DID NOT HAVE THE POS OF RTE WHICH HAD BEEN CHANGED FROM THE FILED PLAN ENCLOSED IN DASHES WHICH IS NORMAL PROC.

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.