Aviation Compliance: FAA Coordinate Audits

Liability Briefing: Examining the strict FAA requirements for WGS84/NAD83(2011) adherence when mapping airport obstacles and flight paths.

The Federal Aviation Administration (FAA) does not tolerate geodetic ambiguity. When surveying airport runways, submitting obstacle evaluations (Part 77), or drafting drone flight paths, coordinate compliance is strictly regulated.

The WGS84 Aviation Standard

Following international ICAO standards, the FAA relies on WGS84 and the equivalent NAD83 realizations for all aeronautical data. If an engineering firm submits an obstruction survey utilizing State Plane Coordinates based in the obsolete NAD27 system—or worse, unscaled local grid coordinates—they violate federal guidelines. Airspace analysis requires unified global data because flight paths span continental distances.

Liability of the Surveyor

Submitting incorrect coordinate metadata for an airport approach path can lead to federal enforcement actions, immediate suspension of Professional Engineering/Surveying licenses, and profound civil liability if the error compromises an instrument landing system (ILS) glide path.

Run Independent Integrity Checks

Relying exclusively on un-audited third-party data or black-box rover software destroys professional defensibility. Execute mathematical validation across multiple coordinate methodologies:

Legal & Technical FAQ

Does the FAA accept State Plane Coordinates?

Typically, all data submitted for FAA Aeronautical Surveys must be provided in geographic coordinates (Latitude, Longitude, and Ellipsoid Height) mapped to the current epoch of NAD83, directly equivalent to WGS84 for aviation processing.