Narrative:

I was operating a grob 115 as a CFI preparing for takeoff. The student pilot who was in control of the aircraft was waiting behind 2 other aircraft at the end of runway 14 (cxo) after those aircraft departed the student cleared the area for traffic. There was a little concern due to a scattered area of clouds at approximately 1200-1500 ft AGL along the extended centerline of runway 14. The student completed the advisory call on the CTAF prior to crossing the hold short line and then proceeded to line up on the centerline. The student made 1 more call on the CTAF stating he was going to hesitate in position momentarily for a simulated short field takeoff. The next transmission on the CTAF was 'grob; if you hear this transmission; you better clear the runway; there is a twin cessna on final I am on an IFR flight plan.' the student rejected the planned takeoff and cleared the runway at the closest intersection turning right onto runway 19 and advising on the CTAF that the grob was clear of runway 14. During the departure from runway 14; I (the CFI) made a call on the CTAF that the cessna might consider a go around if we were not clear; however; the grob cleared runway 14 well ahead of the cessna twin landing on runway 14. During the event; the first radio call heard was that the grob better clear the runway. When the cessna was visible no indication of landing lights were apparent to enhance a safe operating practice of see and be seen. To enhance safety at uncontrolled airfields; I would suggest as early as possible a radio advisory call on the CTAF to alert traffic of the location of the IFR traffic; the use of all available landing lights and not to attempt to demand the use of the runway or encourage other aircraft to hurry or expedite clearing of the runway surface.

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Original NASA ASRS Text

Title: A GROB 115 TOOK THE RWY FOR TKOF AT CXO IN FRONT OF A C340 ARRIVING ON AN IFR FLT PLAN.

Narrative: I WAS OPERATING A GROB 115 AS A CFI PREPARING FOR TKOF. THE STUDENT PLT WHO WAS IN CTL OF THE ACFT WAS WAITING BEHIND 2 OTHER ACFT AT THE END OF RWY 14 (CXO) AFTER THOSE ACFT DEPARTED THE STUDENT CLRED THE AREA FOR TFC. THERE WAS A LITTLE CONCERN DUE TO A SCATTERED AREA OF CLOUDS AT APPROX 1200-1500 FT AGL ALONG THE EXTENDED CTRLINE OF RWY 14. THE STUDENT COMPLETED THE ADVISORY CALL ON THE CTAF PRIOR TO XING THE HOLD SHORT LINE AND THEN PROCEEDED TO LINE UP ON THE CTRLINE. THE STUDENT MADE 1 MORE CALL ON THE CTAF STATING HE WAS GOING TO HESITATE IN POS MOMENTARILY FOR A SIMULATED SHORT FIELD TKOF. THE NEXT XMISSION ON THE CTAF WAS 'GROB; IF YOU HEAR THIS XMISSION; YOU BETTER CLR THE RWY; THERE IS A TWIN CESSNA ON FINAL I AM ON AN IFR FLT PLAN.' THE STUDENT REJECTED THE PLANNED TKOF AND CLRED THE RWY AT THE CLOSEST INTXN TURNING R ONTO RWY 19 AND ADVISING ON THE CTAF THAT THE GROB WAS CLR OF RWY 14. DURING THE DEP FROM RWY 14; I (THE CFI) MADE A CALL ON THE CTAF THAT THE CESSNA MIGHT CONSIDER A GAR IF WE WERE NOT CLR; HOWEVER; THE GROB CLRED RWY 14 WELL AHEAD OF THE CESSNA TWIN LNDG ON RWY 14. DURING THE EVENT; THE FIRST RADIO CALL HEARD WAS THAT THE GROB BETTER CLR THE RWY. WHEN THE CESSNA WAS VISIBLE NO INDICATION OF LNDG LIGHTS WERE APPARENT TO ENHANCE A SAFE OPERATING PRACTICE OF SEE AND BE SEEN. TO ENHANCE SAFETY AT UNCTLED AIRFIELDS; I WOULD SUGGEST AS EARLY AS POSSIBLE A RADIO ADVISORY CALL ON THE CTAF TO ALERT TFC OF THE LOCATION OF THE IFR TFC; THE USE OF ALL AVAILABLE LNDG LIGHTS AND NOT TO ATTEMPT TO DEMAND THE USE OF THE RWY OR ENCOURAGE OTHER ACFT TO HURRY OR EXPEDITE CLRING OF THE RWY SURFACE.

Data retrieved from NASA's ASRS site as of January 2009 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.