(e) the type of aircraft or flight training equipment used for any training, pilot proficiency check, line check or qualification required under this Subpart.

An aircraft electing to change the conduct of its flight from compliance with the instrument flight rules to compliance with the visual flight rules shall notify the appropriate air traffic services unit specifically that the IFR flight is cancelled and communicate thereto the changes to be made to its current flight plan.

When it becomes evident that flight in VMC in accordance with its current flight plan will not be practicable, a VFR flight operated as a controlled flight shall:

Except as provided for in (b) and (d) an aircraft shall adhere to the current flight plan or the applicable portion of a current flight plan submitted for a controlled flight unless a request for a change has been made and clearance obtained from the appropriate air traffic control unit, or unless an emergency situation arises which necessitates immediate action by the aircraft, in which event as soon as circumstances permit, after such emergency authority is exercised, the appropriate air traffic services unit shall be notified of the action taken and that this action has been taken under emergency authority.

5. Persons responsible for providing flight training or flight simulation training, or for assessing pilots' skill, and aero-medical examiners shall hold an appropriate certificate.

1. This Regulation lays down the requirements on procedures for flight plans in the pre-flight phase in order to ensure the consistency of flight plans, repetitive flight plans and associated update messages between operators, pilots and air traffic services units through the Integrated Initial Flight Plan Processing System, either in the period preceding the first delivery of air traffic control clearance for flights taking off fr ...[+++]om within the airspace covered by this Regulation or in the period preceding entry into that airspace for other flights.