Narrative:

Within the last few months, tulsa approach has established a voluntary procedure at okm airport and at 0f8 airport, which encourages all training aircraft practicing IFR apches at these airports to contact tulsa approach control for separation from other VFR and IFR aircraft practicing instrument apches at these airports. From reports by student and instructor pilots, this procedure is not safe. Both of these airports are outside of the tulsa arsa and both airports have a considerable amount of VFR traffic in the pattern, as well as inbound and outbnd, but the primary problem is in the fact that it is not mandatory to contact tulsa approach. Approach wants them on their frequency but puts them on the CTAF when they are finished with them. All of the aircraft practicing IFR apches at a specific airport or over an IAF should be on the same frequency. The problem is further complicated by the fact that 0f8 is 13 NM from the radar antenna and okm airport is 33 NM from the tulsa approach radar antenna. There have been several incidents of near midair collisions over and near the LOM/IAF/presidio because one aircraft was on tul approach frequency with assigned radar vector and another aircraft was on the okm CTAF, both approaching the same IAF at the same altitude. Usually they both see each other but occasionally one aircraft is nt aware of the other. This is an extremely dangerous procedure as is presently practiced by tulsa approach and needs to be discontinued or changed. It can only eventually result in disaster, as is.

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Original NASA ASRS Text

Title: ACFT ARE ENCOURAGED TO CONTACT APCH CTL FOR PRACTICE APCHES, THEREBY PREVENTING ALL ACFT IN THE AREA FROM BEING ON A COMMON FREQ (CTAF).

Narrative: WITHIN THE LAST FEW MONTHS, TULSA APCH HAS ESTABLISHED A VOLUNTARY PROC AT OKM ARPT AND AT 0F8 ARPT, WHICH ENCOURAGES ALL TRAINING ACFT PRACTICING IFR APCHES AT THESE ARPTS TO CONTACT TULSA APCH CTL FOR SEPARATION FROM OTHER VFR AND IFR ACFT PRACTICING INSTRUMENT APCHES AT THESE ARPTS. FROM REPORTS BY STUDENT AND INSTRUCTOR PLTS, THIS PROC IS NOT SAFE. BOTH OF THESE ARPTS ARE OUTSIDE OF THE TULSA ARSA AND BOTH ARPTS HAVE A CONSIDERABLE AMOUNT OF VFR TFC IN THE PATTERN, AS WELL AS INBND AND OUTBND, BUT THE PRIMARY PROBLEM IS IN THE FACT THAT IT IS NOT MANDATORY TO CONTACT TULSA APCH. APCH WANTS THEM ON THEIR FREQ BUT PUTS THEM ON THE CTAF WHEN THEY ARE FINISHED WITH THEM. ALL OF THE ACFT PRACTICING IFR APCHES AT A SPECIFIC ARPT OR OVER AN IAF SHOULD BE ON THE SAME FREQ. THE PROBLEM IS FURTHER COMPLICATED BY THE FACT THAT 0F8 IS 13 NM FROM THE RADAR ANTENNA AND OKM ARPT IS 33 NM FROM THE TULSA APCH RADAR ANTENNA. THERE HAVE BEEN SEVERAL INCIDENTS OF NEAR MIDAIR COLLISIONS OVER AND NEAR THE LOM/IAF/PRESIDIO BECAUSE ONE ACFT WAS ON TUL APCH FREQ WITH ASSIGNED RADAR VECTOR AND ANOTHER ACFT WAS ON THE OKM CTAF, BOTH APCHING THE SAME IAF AT THE SAME ALT. USUALLY THEY BOTH SEE EACH OTHER BUT OCCASIONALLY ONE ACFT IS NT AWARE OF THE OTHER. THIS IS AN EXTREMELY DANGEROUS PROC AS IS PRESENTLY PRACTICED BY TULSA APCH AND NEEDS TO BE DISCONTINUED OR CHANGED. IT CAN ONLY EVENTUALLY RESULT IN DISASTER, AS IS.

Data retrieved from NASA's ASRS site as of August 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.