Narrative:

My captain and I were taxiing out for departure at easton airport, maryland (esn). I occupied the left seat, and was the PF for the leg. The captain made the radio calls. Esn is an uncontrolled field, and we discussed waiting to get the clearance until nearing takeoff. Approaching #1, we called the listed frequency for (baltimore) clearance, and received our clearance. I noticed that the controller had not given us a void time, but did not question it, since we had called ready to go. After takeoff, a controller asked if we had taken off VFR. We stated that we had not. A couple of mins later, we were given a phone number to speak to a supervisor. Later, the supervisor told my captain that the tapes did show the controller said 'hold for release.' the conditions were VFR, and I did note originally that I felt the controller was rather unprofessional for not providing a 'void time.' however, it is obviously possible that I should have forcefully questioned the lack of a void time, or assumed that the controller might have acted correctly, and I simply did not hear it. Supplemental information from acn 618957: I was later informed our clearance said 'hold for release.' I never remembered copying that down, nor do I remember reading it back. It had been a long day, and a long 7 days straight on duty. Perhaps I was just tired.

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Original NASA ASRS Text

Title: UNAUTH TKOF AFTER TAXI OUT AT ESN, AN HS25A FLT CREW FAILS TO HEAR, 'HOLD FOR RELEASE,' WHEN GETTING THEIR IFR CLRNC FROM CTLR AT PCT.

Narrative: MY CAPT AND I WERE TAXIING OUT FOR DEP AT EASTON ARPT, MARYLAND (ESN). I OCCUPIED THE L SEAT, AND WAS THE PF FOR THE LEG. THE CAPT MADE THE RADIO CALLS. ESN IS AN UNCTLED FIELD, AND WE DISCUSSED WAITING TO GET THE CLRNC UNTIL NEARING TKOF. APCHING #1, WE CALLED THE LISTED FREQ FOR (BALTIMORE) CLRNC, AND RECEIVED OUR CLRNC. I NOTICED THAT THE CTLR HAD NOT GIVEN US A VOID TIME, BUT DID NOT QUESTION IT, SINCE WE HAD CALLED READY TO GO. AFTER TKOF, A CTLR ASKED IF WE HAD TAKEN OFF VFR. WE STATED THAT WE HAD NOT. A COUPLE OF MINS LATER, WE WERE GIVEN A PHONE NUMBER TO SPEAK TO A SUPVR. LATER, THE SUPVR TOLD MY CAPT THAT THE TAPES DID SHOW THE CTLR SAID 'HOLD FOR RELEASE.' THE CONDITIONS WERE VFR, AND I DID NOTE ORIGINALLY THAT I FELT THE CTLR WAS RATHER UNPROFESSIONAL FOR NOT PROVIDING A 'VOID TIME.' HOWEVER, IT IS OBVIOUSLY POSSIBLE THAT I SHOULD HAVE FORCEFULLY QUESTIONED THE LACK OF A VOID TIME, OR ASSUMED THAT THE CTLR MIGHT HAVE ACTED CORRECTLY, AND I SIMPLY DID NOT HEAR IT. SUPPLEMENTAL INFO FROM ACN 618957: I WAS LATER INFORMED OUR CLRNC SAID 'HOLD FOR RELEASE.' I NEVER REMEMBERED COPYING THAT DOWN, NOR DO I REMEMBER READING IT BACK. IT HAD BEEN A LONG DAY, AND A LONG 7 DAYS STRAIGHT ON DUTY. PERHAPS I WAS JUST TIRED.

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.