The National Civil Aviation Agency (ANAC) has fulfilled a further obligation to simplify and modernize the rules of general aviation as provided for in the Voo Simples program for the participation of interested parties in the proposal for the supplementary instruction No. 91.319-001, revision A, entitled “Overflight of an area densely populated by test aircraft”. The aim is to support the regulatory authorities in applying the requirements of the Brazilian Civil Aviation Ordinance (RBAC) No. 91, which provides for experimental flight operations in densely populated areas.
In general, IS 91.319-001 attempts to clarify under which conditions overflowing densely populated areas can be approved by ANAC. The proposal addresses the applicability of the IS, the required airworthiness and operational criteria, the airports suitable for this type of operation and the parameters required to obtain the ANAC approval. In addition to an extensive internal debate within the Agency, covering several of its technical areas, the proposal to amend Requirement No. 91.319 (c) of RBAC No. 91 was also discussed with representatives from companies in the sector such as the Aircraft Owners and Pilots Association ( AOPA Brazil).
At the moment it is not possible under any circumstances to operate test aircraft in densely populated areas, which is a major obstacle to the use of this type of aircraft and the development of the sector. According to the proposal, it will be possible to operate in places where there is uninhabited space for maneuvers and an escape area for emergency landings. However, these processes follow a number of safety-related requirements, such as B. ANAC permit to fly over densely populated areas, evidence of aircraft maintenance and the need to meet the necessary airworthiness requirements.
Classification of airfields
The main criterion for the permit to fly test aircraft in densely populated areas is related to the situation of the airports used, which are classified as “free”, “restricted” or “prohibited” depending on their location. This classification already exists in RBAC No. 91 and follows in the proposal for a public consultation. The general rules for the operation of test aircraft are already provided in RBAC No. 91. However, it is up to the ANAC to determine the additional restrictions it deems necessary, e.g. B. the restrictions on the use of airfields depending on their situation and location.
Vacant airfields are located in rural areas, far from urban areas, where normal approaches, traffic, landing, take-off and evacuation operations normally take place without having to fly over densely populated areas. The restricted airfields for test aircraft are located near or in urban areas and operations may require overflowing part of the densely populated area during post-takeoff maneuvers or when approaching for landing. Prohibited airfields are surrounded in all directions and over long stretches by areas of high population density. The landing or take-off of test aircraft remains unauthorized at these airports.
Aerodromes that are prohibited from operating test aircraft are detailed in a list on the ANAC website, which is regularly updated and should be used for consultation by operators.
The full text of IS 91.319-001 Revision A can be found on the Consultations In Progress page on the ANAC website. Submissions must be sent to the agency by November 30, 2020 using an electronic form available at the same address.