Narrative:

I received an IFR clearance from phl data. The routing portion of that clearance was given as; 'ptw; mxe; then as filed.' for the routing portion; I read back; 'ptw; mxe; then as filed....'once airborne and out of phl airspace; I was told by harrisburg approach to go direct to esl. I questioned the routing as esl was not on the routing I filed. Discussing with that with the controller; I realized the routing that was in the system was nowhere near what I had filed. Somewhere the system had changed my routing and no frc [full route clearance] was ever issued.additionally; various electronic feedback loops had told me my expected routing was what I filed. I received various e-mails and text messages to the affect of my initial routing.there is a danger when this happens and I think my IFR SOP now has to include a read back of my expected routing to the controller when they say; 'as filed.' it's not ideal and it's a waste of time; but if we can't depend on the system to give timely results with respect to routing there is a danger of a traffic conflict. In this case; weather was largely VMC and the controllers were advising of traffic conflicts as they should; but it's certainly not a desired outcome of filing IFR.

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Original NASA ASRS Text

Title: A BE33 pilot departing IFR; cleared as filed but; when ATC cleared him direct to a fix that was not on his filed route he discovered the route he had filed was not the route by which he was cleared.

Narrative: I received an IFR clearance from PHL data. The routing portion of that clearance was given as; 'PTW; MXE; then as filed.' For the routing portion; I read back; 'PTW; MXE; then as filed....'Once airborne and out of PHL airspace; I was told by Harrisburg Approach to go direct to ESL. I questioned the routing as ESL was not on the routing I filed. Discussing with that with the controller; I realized the routing that was in the system was nowhere near what I had filed. Somewhere the system had changed my routing and no FRC [Full Route Clearance] was ever issued.Additionally; various electronic feedback loops had told me my expected routing was what I filed. I received various e-mails and text messages to the affect of my initial routing.There is a danger when this happens and I think my IFR SOP now has to include a read back of my expected routing to the controller when they say; 'As filed.' It's not ideal and it's a waste of time; but if we can't depend on the system to give timely results with respect to routing there is a danger of a traffic conflict. In this case; weather was largely VMC and the controllers were advising of traffic conflicts as they should; but it's certainly not a desired outcome of filing IFR.

Data retrieved from NASA's ASRS site as of July 2013 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.