Narrative:

While taxiing for departure call intention on unicom, back taxi to runway 27 for departure, there are no txwys when arriving at runway before entering for back taxi a visual look showed no traffic. Also had been monitoring unicom and heard no transmission, upon entering runway to back taxi saw aircraft at approach end either just lifted off or going around. I taxied off the runway and was then able to contact the other aircraft by radio. Rest of taxi and takeoff uneventful. Problem not enough position reporting in pattern. Visibility of aircraft low on final. Callback conversation with reporter revealed the following information: the reporter indicated that the airport is used extensively for flight training and he suspected that aircraft Y was occupied with that activity. He heard no CTAF calls until after aircraft Y was observed and then Y made a call. The reporter assumed that training conversation or a turned down radio caused Y to be out of the CTAF loop. The reporter said that there is a hump in the runway, which to some extent, obscures the end when the runway is entered at the FBO taxiway to begin taxi back. This makes the CTAF communication more important.

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Original NASA ASRS Text

Title: RWY INCURSION AT AN UNCONTROLLED ARPT WHERE A TAXI BACK WAS REQUIRED AND ALL ACFT WERE NOT FOLLOWING CTAF PROCS.

Narrative: WHILE TAXIING FOR DEP CALL INTENTION ON UNICOM, BACK TAXI TO RWY 27 FOR DEP, THERE ARE NO TXWYS WHEN ARRIVING AT RWY BEFORE ENTERING FOR BACK TAXI A VISUAL LOOK SHOWED NO TFC. ALSO HAD BEEN MONITORING UNICOM AND HEARD NO XMISSION, UPON ENTERING RWY TO BACK TAXI SAW ACFT AT APCH END EITHER JUST LIFTED OFF OR GOING AROUND. I TAXIED OFF THE RWY AND WAS THEN ABLE TO CONTACT THE OTHER ACFT BY RADIO. REST OF TAXI AND TKOF UNEVENTFUL. PROB NOT ENOUGH POS REPORTING IN PATTERN. VISIBILITY OF ACFT LOW ON FINAL. CALLBACK CONVERSATION WITH RPTR REVEALED THE FOLLOWING INFO: THE RPTR INDICATED THAT THE ARPT IS USED EXTENSIVELY FOR FLT TRAINING AND HE SUSPECTED THAT ACFT Y WAS OCCUPIED WITH THAT ACTIVITY. HE HEARD NO CTAF CALLS UNTIL AFTER ACFT Y WAS OBSERVED AND THEN Y MADE A CALL. THE RPTR ASSUMED THAT TRAINING CONVERSATION OR A TURNED DOWN RADIO CAUSED Y TO BE OUT OF THE CTAF LOOP. THE RPTR SAID THAT THERE IS A HUMP IN THE RWY, WHICH TO SOME EXTENT, OBSCURES THE END WHEN THE RWY IS ENTERED AT THE FBO TXWY TO BEGIN TAXI BACK. THIS MAKES THE CTAF COM MORE IMPORTANT.

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.