Narrative:

At fnl airport; an uncontrolled airport; we have a designated diverse vectoring area (dva) from 350-180 degrees. The main runways at that airport are 15/33. Our SOP states that runway 33 departures must be issued a right turn and we must hear it read back. As a workforce we have inquired to management an explanation on why the dva only begins at 350 degrees and what the pilot's requirements are with the traffic pattern to get them there. We have had several situations where pilots take left turns to comply with the traffic pattern. We need to get clarification on our requirements and theirs.I had an IFR aircraft doing a practice ILS 33 at fnl; I issued his missed approach instructions a right turn heading 120 and he read it back. Upon his missed approach I observed him make a left turn and he checked on with me on a 190 heading; below the 7;000 minimum vectoring altitude (MVA) and entering the 8;000 MVA. When I inquired about his original clearance he told me he had to comply with the pattern and was now turning left to the original 120 heading which pointed him back towards a busy traffic pattern. Had he made the right turn to 120 as originally instructed; he would've gone even deeper into a higher MVA; posing a substantial safety risk.further discussion and investigation on the runway 33 departure requirements. Explanation on the dva and the fact that it starts at 350; and yet we own to the surface at fnl. What our and the pilot's requirements are to comply with safety requirements on releases and issued headings.

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Original NASA ASRS Text

Title: D01 TRACON Controller reported an aircraft was issued and acknowledged an instruction for a right turn missed approach. The aircraft made a left turn on their missed approach.

Narrative: At FNL airport; an uncontrolled airport; we have a designated Diverse Vectoring Area (DVA) from 350-180 degrees. The main runways at that airport are 15/33. Our SOP states that Runway 33 departures must be issued a right turn and we must hear it read back. As a workforce we have inquired to management an explanation on why the DVA only begins at 350 degrees and what the pilot's requirements are with the traffic pattern to get them there. We have had several situations where pilots take left turns to comply with the traffic pattern. We need to get clarification on our requirements and theirs.I had an IFR aircraft doing a practice ILS 33 at FNL; I issued his missed approach instructions a right turn heading 120 and he read it back. Upon his missed approach I observed him make a left turn and he checked on with me on a 190 heading; below the 7;000 Minimum Vectoring Altitude (MVA) and entering the 8;000 MVA. When I inquired about his original clearance he told me he had to comply with the pattern and was now turning left to the original 120 heading which pointed him back towards a busy traffic pattern. Had he made the right turn to 120 as originally instructed; he would've gone even deeper into a higher MVA; posing a substantial safety risk.Further discussion and investigation on the Runway 33 departure requirements. Explanation on the DVA and the fact that it starts at 350; and yet we own to the surface at FNL. What our and the pilot's requirements are to comply with safety requirements on releases and issued headings.

Data retrieved from NASA's ASRS site 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.