Narrative:

I was on north sector when a pilot called for clearance from vuo to mmv. I issued the clearance in accordance with local procedures and advised the flight to 'hold on the ground for release.' I got a good read back and told them to contact departure on the appropriate frequency since we were in a runway 10 configuration and this satellite airport was not in my airspace. I then gave a position relief briefing and left the TRACON.a short time later a supervisor advised me that there was a possible pilot deviation and asked me if I had read the clearance correctly. I said I did and went to listen to the tape with the supervisor. There were zero discrepancies with the issuance of the clearance or the read back.I was told that the aircraft departed vuo and made the correct odp (obstacle departure procedure) but instead of continuing to btg VOR as assigned they made a left turn over the runway 10 final and conflicted with a F900 on final for runway 10L at pdx. I think that pilots need to exercise extreme vigilance when departing in close proximity to larger airports where there are many arrivals and departures. I also think that pilots should be allowed to tour facilities that they fly into and out of regularly to see what happens behind the scenes. If the flight had complied with ATC clearance there wouldn't have been a loss of separation.

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Original NASA ASRS Text

Title: The pilot of a turboprop aircraft failed to fly the ODP procedure from VUO and conflicted with arrivals to PDX.

Narrative: I was on North Sector when a pilot called for clearance from VUO to MMV. I issued the clearance IAW local procedures and advised the flight to 'hold on the ground for release.' I got a good read back and told them to contact Departure on the appropriate frequency since we were in a Runway 10 configuration and this satellite airport was not in my airspace. I then gave a position relief briefing and left the TRACON.A short time later a Supervisor advised me that there was a possible pilot deviation and asked me if I had read the clearance correctly. I said I did and went to listen to the tape with the Supervisor. There were zero discrepancies with the issuance of the clearance or the read back.I was told that the aircraft departed VUO and made the correct ODP (Obstacle Departure Procedure) but instead of continuing to BTG VOR as assigned they made a left turn over the Runway 10 final and conflicted with a F900 on final for Runway 10L at PDX. I think that pilots need to exercise extreme vigilance when departing in close proximity to larger airports where there are many arrivals and departures. I also think that pilots should be allowed to tour facilities that they fly into and out of regularly to see what happens behind the scenes. If the flight had complied with ATC clearance there wouldn't have been a loss of separation.

Data retrieved from NASA's ASRS site as of April 2012 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.