Narrative:

There is a long standing issue with ground taxi procedures at apa. Aircraft that require a run up are not taxied to a runway; but are taxied to a run up area adjacent to a runway prior to issuing the remainder of the instructions. Aircraft X was issued instructions to taxi to the north run up area via alpha and he read back instructions. He taxied onto taxiway a and proceeded past the north run up area and into the A1 ramp which was the old run up area; but according to the charts; is still part of the north run up area. Even though doing a run up in his location did not effect the operation or air safety; I instructed the aircraft to move 75-100 south to the north run up area and he complied. North run up area is incorrectly charted as the entire area north of taxiway A2. An aircraft doing a run up in the A1 run up area is not a safety issue as the north run up area is only 100 ft from the approach end of runway 17L. Even today; a glassair began taxiing out of the north run up area to runway 17L as I began to key and give him the instructions to taxi to runway 17L even though he had not received a clearance. If you are going to make us do these procedures; that no other airport does; then fix the charts and put signs at the run up areas. Once it snows; the words run up will be covered and no one will know where the run up area is truly located.

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Original NASA ASRS Text

Title: APA Controller voiced concern regarding run up procedures and the inadequate signage for pilots regarding same.

Narrative: There is a long standing issue with Ground Taxi procedures at APA. Aircraft that require a run up are not taxied to a runway; but are taxied to a run up area adjacent to a runway prior to issuing the remainder of the instructions. Aircraft X was issued instructions to taxi to the north run up area via Alpha and he read back instructions. He taxied onto Taxiway A and proceeded past the north run up area and into the A1 ramp which was the old run up area; but according to the charts; is still part of the north run up area. Even though doing a run up in his location did not effect the operation or air safety; I instructed the aircraft to move 75-100 south to the north run up area and he complied. North run up area is incorrectly charted as the entire area north of Taxiway A2. An aircraft doing a run up in the A1 run up area is not a safety issue as the north run up area is only 100 FT from the approach end of Runway 17L. Even today; a Glassair began taxiing out of the north run up area to Runway 17L as I began to key and give him the instructions to taxi to Runway 17L even though he had not received a clearance. If you are going to make us do these procedures; that no other airport does; then fix the charts and put signs at the run up areas. Once it snows; the words Run Up will be covered and no one will know where the run up area is truly located.

Data retrieved from NASA's ASRS site as of July 2013 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.