Narrative:

We copied our ATC clearance and were told to hold for release. Ogg tower was about to close and we were to call ZHN for our release. We used the CTAF frequency to check for other traffic and talked to an inbound business jet just outside the marker. We went ahead and took off in pure VFR WX, having just plain forgot to call ZHN. We called them immediately after airborne and just then realized what we had done. The controller didn't seem too excited, but did remind us that we should have called for our release. Their only traffic was the inbound that we had talked to. In effect, we ended up departing VFR in VFR WX and picked up our clearance in the air. No particular human factors except that we felt stupid.

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Original NASA ASRS Text

Title: JUST AFTER ISSUING ATC CLRNC AND CLOSING DOWN, OGG LCL CTLR ADVISES A B757 CREW TO CALL ZHN FOR A RELEASE. CREW DEPARTED WITHOUT OBTAINING RELEASE.

Narrative: WE COPIED OUR ATC CLRNC AND WERE TOLD TO HOLD FOR RELEASE. OGG TWR WAS ABOUT TO CLOSE AND WE WERE TO CALL ZHN FOR OUR RELEASE. WE USED THE CTAF FREQ TO CHK FOR OTHER TFC AND TALKED TO AN INBOUND BUSINESS JET JUST OUTSIDE THE MARKER. WE WENT AHEAD AND TOOK OFF IN PURE VFR WX, HAVING JUST PLAIN FORGOT TO CALL ZHN. WE CALLED THEM IMMEDIATELY AFTER AIRBORNE AND JUST THEN REALIZED WHAT WE HAD DONE. THE CTLR DIDN'T SEEM TOO EXCITED, BUT DID REMIND US THAT WE SHOULD HAVE CALLED FOR OUR RELEASE. THEIR ONLY TFC WAS THE INBOUND THAT WE HAD TALKED TO. IN EFFECT, WE ENDED UP DEPARTING VFR IN VFR WX AND PICKED UP OUR CLRNC IN THE AIR. NO PARTICULAR HUMAN FACTORS EXCEPT THAT WE FELT STUPID.

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.