Flight crew understands the 'revised segment' portion of their pre departure clearance clearance is intended to advise of a change in their filed flight plan. ATC advises the revision was not a revision.

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Attributes
ACN	786313
Time
Date	200805
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : dfw.airport
State Reference	TX
Altitude	msl single value : 23000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	artcc : zfw.artcc
Operator	common carrier : air carrier
Make Model Name	Commercial Fixed Wing
Operating Under FAR Part	Part 121
Navigation In Use	other
Flight Phase	climbout : intermediate altitude ground : maintenance
Route In Use	departure sid : soldo
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp pilot : flight engineer
Experience	flight time last 90 days : 50 flight time total : 9100 flight time type : 1800
ASRS Report	786313
Person 2
Affiliation	government : faa
Function	controller : radar
Events
Anomaly	non adherence : clearance other spatial deviation
Independent Detector	other controllera
Resolutory Action	controller : issued new clearance controller : issued advisory
Supplementary
Problem Areas	Flight Crew Human Performance Chart Or Publication ATC Human Performance
Primary Problem	Chart Or Publication
Air Traffic Incident	Pilot Deviation
Situations
Publication	PDC

Narrative:

I interpreted my pre departure clearance clearance -- I was filed 'dfw SOLDO2 eld mei..' under revised segment it states 'SOLDO2 mei' which led me to believe my new segment deleted 'eld' and had me direct from 'soldo to mei.' the controller stated that was not so and vectored me to eld after soldo. In my opinion this pre departure clearance is ambiguous and leaves too much open for interpretation. Next time I will verify with clearance before we depart; but this issue should be addressed.

Original NASA ASRS Text

Title: FLT CREW UNDERSTANDS THE 'REVISED SEGMENT' PORTION OF THEIR PDC CLEARANCE IS INTENDED TO ADVISE OF A CHANGE IN THEIR FILED FLT PLAN. ATC ADVISES THE REVISION WAS NOT A REVISION.

Narrative: I INTERPRETED MY PDC CLEARANCE -- I WAS FILED 'DFW SOLDO2 ELD MEI..' UNDER REVISED SEGMENT IT STATES 'SOLDO2 MEI' WHICH LED ME TO BELIEVE MY NEW SEGMENT DELETED 'ELD' AND HAD ME DIRECT FROM 'SOLDO TO MEI.' THE CTLR STATED THAT WAS NOT SO AND VECTORED ME TO ELD AFTER SOLDO. IN MY OPINION THIS PDC IS AMBIGUOUS AND LEAVES TOO MUCH OPEN FOR INTERPRETATION. NEXT TIME I WILL VERIFY WITH CLEARANCE BEFORE WE DEPART; BUT THIS ISSUE SHOULD BE ADDRESSED.

Data retrieved from NASA's ASRS site as of May 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.