Narrative:

While instructing, I was practicing lndgs at a (formerly) uncontrolled airport 18 mi from our home airport at about XA00 am. While monitoring the unicom frequency, we heard another aircraft receiving an airport advisory, and followed them into the traffic pattern. After one full-stop and taxi-back, I noticed another aircraft cross the runway without making any radio calls. On downwind, I observed another aircraft flying through the downwind leg on a practice instrument missed approach. On base, the aircraft on the ground departed, again without a radio call. I asked unicom for a radio check to which I received a 'loud and clear.' on short final, I did observe a man standing beside the taxiway waving furiously, but continued with a touch and go. On lift-off, we received a message that a new tower was open and to switch to the new frequency. We continued the training flight without incident. Note: despite making 2-3 position reports on the unicom/old CTAF, the unicom operator did not advise us about the tower. The new sectional and terminal area chart depict the area with a blue segmented circle (class D), but with a magenta airport symbol and no tower frequency. Due to the early hour and excellent WX, I did not obtain a WX briefing which would have included a NOTAM indicating a NFCT which opened at XA30 am local.

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Original NASA ASRS Text

Title: INSTRUCTOR WITH STUDENT FAILS TO NOTE NEW TWR AT PREVIOUSLY NON TWR ARPT. LAND WITHOUT CLRNC SEVERAL TIMES.

Narrative: WHILE INSTRUCTING, I WAS PRACTICING LNDGS AT A (FORMERLY) UNCTLED ARPT 18 MI FROM OUR HOME ARPT AT ABOUT XA00 AM. WHILE MONITORING THE UNICOM FREQ, WE HEARD ANOTHER ACFT RECEIVING AN ARPT ADVISORY, AND FOLLOWED THEM INTO THE TFC PATTERN. AFTER ONE FULL-STOP AND TAXI-BACK, I NOTICED ANOTHER ACFT CROSS THE RWY WITHOUT MAKING ANY RADIO CALLS. ON DOWNWIND, I OBSERVED ANOTHER ACFT FLYING THROUGH THE DOWNWIND LEG ON A PRACTICE INST MISSED APCH. ON BASE, THE ACFT ON THE GND DEPARTED, AGAIN WITHOUT A RADIO CALL. I ASKED UNICOM FOR A RADIO CHK TO WHICH I RECEIVED A 'LOUD AND CLR.' ON SHORT FINAL, I DID OBSERVE A MAN STANDING BESIDE THE TXWY WAVING FURIOUSLY, BUT CONTINUED WITH A TOUCH AND GO. ON LIFT-OFF, WE RECEIVED A MESSAGE THAT A NEW TWR WAS OPEN AND TO SWITCH TO THE NEW FREQ. WE CONTINUED THE TRAINING FLT WITHOUT INCIDENT. NOTE: DESPITE MAKING 2-3 POS RPTS ON THE UNICOM/OLD CTAF, THE UNICOM OPERATOR DID NOT ADVISE US ABOUT THE TWR. THE NEW SECTIONAL AND TERMINAL AREA CHART DEPICT THE AREA WITH A BLUE SEGMENTED CIRCLE (CLASS D), BUT WITH A MAGENTA ARPT SYMBOL AND NO TWR FREQ. DUE TO THE EARLY HR AND EXCELLENT WX, I DID NOT OBTAIN A WX BRIEFING WHICH WOULD HAVE INCLUDED A NOTAM INDICATING A NFCT WHICH OPENED AT XA30 AM LCL.

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.