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Additional information for ASN 2015-AGL-16329-OE <br /> AERONAUTICAL STUDY NO. 2015-AGL-16329-OE <br /> MSL -Mean Sea Level IFR- Instrument Flight Rules RWY --runway <br /> AGL -Above Ground Level VFR- Visual Flight Rules nm -nautical mile <br /> Part 77 -Title 14 Code of Federal Regulations (CFR) Part 77, Objects Affecting Navigable Airspace <br /> This temporary tower crane at 190 feet AGL/1131 feet AMSL has been identified as an obstruction under the <br /> standards of Title 14, Code of Federal Regulations (CFR) Part 77, as applied to Dane County Regional-Truax <br /> Field(MSN)in Madison,WI. The temporary crane would be located approximately 9,106 feet(1.49 nm) east <br /> of the existing RWY 21 threshold at the MSN Airport. This crane will be used to construct a building. MSN <br /> elevation is 886 feet MSL. <br /> Scheduled time of operation: This crane will be on site approximately 9 months. <br /> This temporary crane would exceed this MSN Part 77 protected surface: <br /> Section 77.19(a)--A horizontal plane 150 feet above established airport elevation,the perimeter of which is <br /> constructed by swinging arcs of a specified radii from the center of each end of the primary surface of each <br /> runway of each airport and connecting the adjacent arcs by lines tangent to those arcs. The temporary crane <br /> would exceed the MSN horizontal surface by 95 feet. <br /> The temporary crane does not constitute a substantial adverse effect because the structure would be temporary. <br /> The crane would not be a hazard to air navigation provided these additional conditions identified below are <br /> strictly met: <br /> 1)This temporary crane shall be marked with red light and flag. Red light must conform to chapter 5,red <br /> obstruction light system, (L-810 or equivalent and minimum 32.5 candelas) and flag must conform to chapter <br /> 3, marking guidelines, in accordance with FAA's advisory circular 70/7460-IL, Obstruction marking and <br /> Lighting. Copy of advisory circular 70/7460-1L can be viewed and/or downloaded at https://oeaaa.faa.gov/ <br /> oeaaa/external/content/AC70_7460_1 L.pdf. <br /> 2)The sponsor shall notify the Manager of Dane County Regional-Truax Field Airport(MSN) at 608-246-3380 <br /> at least three (3)business days prior to erecting the crane. Sponsor shall notify the airport manager when the <br /> project is completed and when the crane is removed. <br /> 3) Sponsor shall notify the Manager of the MSN Airport Traffic Control Tower(ATCT) at 608-244-5691 at <br /> least three (3)business days prior to erecting the crane. The crane may NOT be erected/raised/set in place until <br /> this coordination has been completed and sponsor will notify the airport manager when the project is completed <br /> and when the crane is removed. Sponsor shall provide the contact phone number of the crane operator to lower <br /> the crane if/when necessary along with any revision in the crane operation schedule. <br /> 4) The crane shall be lowered at night or when not in use. <br /> Page 3 of 5 <br />