Form 7460 - Instructions


These instructions are intended to give assistance to individuals preparing the FAA Form 7460 for on-airport projects only. The FAA Instructions for the FAA Form 7460 should be used for all off airport projects. These instructions will be available on our website.

Item 1: Sponsor’s Contact Information
Fill in the information of the organization or person who is proposing this action. This may be the county, municipal, airport authority or a private company/individual.

Item 2: Sponsor’s Representative
Fill in the information for the individual whom you wish to be contacted regarding the form. This may be the airport manager, consultant/engineer, or another individual who normally handles inquiries of this nature. If the individual named in Item 1 is also the person who should be contacted with questions, this item may be left blank.

Item 3: Notice of Type of Proposed Action
The new construction box should be checked if the structure has not been built.

The alteration box should be checked for changes to an existing structure. Such alterations may include, but are not limited to, additions to existing buildings, an increase in height of existing poles, building demolition and trimming or removal of trees.

The existing structure box should be checked if the form is being submitted to correct the longitude, latitude, and/or height of an existing structure. This category would also include existing structures which have not been studied by the FAA or existing structures in which a study is being performed for airport licensing purposes.

Item 4: Duration of Work
For construction intended to be permanent, mark permanent. For structures intended to be temporary in nature, such as a crane or construction equipment, mark the temporary box. In the following parentheses, enter the estimated length of time the temporary structure will be a factor.

Item 5: Work Schedule
Enter the date in which construction is expected to begin and the date of expected construction completion.

Item 6: Type of Structure
Check the appropriate type of structure. If none apply, please check other and state what type (i.e. AWOS, GVGI, REILS, etc.) applies. Do NOT leave blank.

Item 7: Marking/Painting and/or Lighting Preferred
In the event that obstruction marking and lighting is required, please indicate type desired. If no preference, check “other” and indicate “no preference.” Do NOT leave blank. High intensity lighting shall be used only on structures over 500’ AGL. The lighting most commonly used on airport obstruction lighting projects is steady red lights. If a project requires lighting/marking, the consulting engineer will normally know the correct type of lighting to be installed on such projects. If further assistance is required, please contact your Regional Project Manager for assistance on the proper type.

Item 8: FCC Antenna Structure Registration Number
If this is an existing tower that has been registered with the FCC, enter the FCC Antenna Structure Registration number here. For projects on airport, this will normally only apply for AWOS and other communication equipment installations.

Item 9 & 10: Latitude and Longitude
Coordinates should be given in degrees, minutes, seconds, and hundredths of seconds, NOT degrees and minutes. Remember, for all practical purposes, one minute equals about one nautical mile (approximately 6076 feet). Therefore, one second equals about 100 feet and a hundredth of a second equals about one foot.

The coordinates given on items 9 and 10 should be the point most critical to the runway and associated obstruction identification surfaces. Some applicants will use the airport reference point coordinates, which is incorrect, rather than the coordinates of the project. Normally, the most critical point will be the highest point closest to the runway although this may not always be the case. For construction equipment 7460s, the work limit coordinate closest to the runway should be shown.

Item 11: Datum of Above Coordinates
All data should be in NAD 83 rather than in NAD 27. Our program calculates only from data in NAD 83. NAD 27 coordinates can be converted to NAD 83 by using NADCON, the North America Datum Conversion Utility, found on NOAA’s website.

Item 12: Location of Airport
Enter the nearest city and state to the project site.

Item 13: Nearest Public Use Airport
For on-airport projects, enter the full name of the airport or heliport on which the project is located. For NRA cases (on-airport projects), the nearest public use airport should be the airport on which the project is occurring, not the next nearest airport or heliport.

Item 14: Distance from # 13 to Structure
Since the project is located on airport, fill in “on airport” in this blank. Perpendicular distances to the RW centerline should be given as part of Item 21.

Item 15: Direction from # 13 to Structure
As in Item 14, fill in “on airport” in this blank also.

Item 16: Site Elevation
Enter the site (ground) elevation above mean sea level (MSL) expected after site work is completed. This should be expressed in whole feet rounded to the nearest foot (e.g. 17’ 3” rounds to 17’, 17’ 6” rounds to 18’). When site work is to be performed to raise or lower the elevation, please note this in the description as part of Item 21.

Common mistakes made by applicants include the following. Some applicants use the airport elevation, which is incorrect, rather than the ground elevation at the site in question. Check that the elevation is accurate for the site. The elevation given here should be cross checked with the airport’s ALP or USGS 7 ½ Minute Quadrangle maps. In some instances, elevations have been given which were out of the range found on the airport and/or surrounding area. A determination can not be made without accurate data where on-airport projects are at or immediately under defined surfaces.

Item 17: Total Structure Height
Enter the total structure height above ground level in whole feet rounded to the next highest foot (e.g. 17’ 3” rounds to 18’). This elevation should be the highest point of a building, or in the case of a road, the height of the imaginary vehicle at the edge of road nearest runway appropriate for the traveled way (see FAR Part 77). The total structure height shall include anything mounted on top of the structure, such as antennas, obstruction lights, lightning rods, etc.

Item 18: Overall Height
Enter the overall height above mean sea level (MSL) expressed in whole feet. Items 16 and 17 should be added for the correct MSL elevation.

Item 19: Previous FAA Aeronautical Study Number
If an FAA aeronautical study was previously conducted, enter the previous study number. If changes are made to the original proposed project which require a new aeronautical study, then the first study pertaining to the project should be entered. This may occur in an instance where the FAA returns an objection to the original proposed project making changes necessary. If no previous studies have been performed on the proposed project, enter N/A.

Item 20: Description of Location
Enter the relationship of the structure to roads, prominent terrain, existing structures on airport, etc. Attach an 8-1/2” x 11” non-reduced (or enlarged) copy of the appropriate 7.5 minute U.S. Geological Survey (USGS) Quadrangle Map marked with a precise indication of the site location. Maps may be obtained by contacting USGC at 1-800-435-7627 or via Internet. If available, attach a copy of a documented site survey with the surveyor’s certification stating the parameters of vertical and horizontal accuracy in feet.

Applicant should have a complete narrative description – not “see attachment.” Attachments get separated. Example descriptions are:
· · north of the airport access road by the existing hangars,
· · northeast of XYZ Creek, or
· · immediately east of the terminal building.

Item 21: Complete Description of Proposal
Applicant should have a complete description of the proposal. Remember that some of the people who are reviewing, processing, and, hopefully, returning a determination of no-objection may not be familiar with your airport and do not know anything about your project. The project’s distance down the runway, perpendicular distance from the runway centerline and spot elevation of the runway centerline should be given here if they are not shown on an attached sketch.

For new buildings, state the construction materials, whether or not smoke, dust or other visibility limiting substances will be generated, and/or electronic signals that may interfere with navigation signals will be generated. Alterations should be explained thoroughly. For 7460s submitted on construction equipment, state where the coordinate given in Items 9 and 10 is located. For existing structures not previously airspaced, the reason for notifying the FAA should be thoroughly explained.

For overhead wires include the size and configuration of the wires and their supporting structures. If more than one tower is to be erected, each tower should be submitted separately. In the case of pole lines, locate all poles on line with top elevations in tabular form.

If the equipment is to be located at several different locations on the airport during the course of the project (i.e. different borrow sites, staging areas, work limits) list them here with either coordinates and/or distance down runway and perpendicular distance to runway centerline.

Also, a separate sketch should be included with the package depicting the project more specifically. This may be a copy of the ALP drawing with the project drawn in.


And don’t forget - Remember to Sign Your 7460 form!!!