References to EU regulation or EU websites in our guidance will not be an accurate description of your obligations or rights under UK law.read more
Aircraft that do not have a valid Certificate of Airworthiness (CofA) or Restricted CofA (RCofA) but are capable of safe flight under defined conditions may be eligible for a Permit to Fly (PtF) under UK Part 21 Subpart P.A PtF is generally required when the aircraft is capable of performing safe flight but its CofA (or RCofA) cannot be issued or is temporarily invalidated.
The PtF can be issued by the UK CAA or a UK Design, Production or continuing Airworthiness Management Organisation with appropriate competence and privilege. Refer to the Permit to Fly page for PtF applications. For a PtF to be issued, the safe condition of the aircraft must first be established. We may put in place restrictions on a permit to maintain an acceptable level of safety.
The configuration(s) for which the Permit to Fly is requested, any conditions or restrictions necessary for safe operation of the aircraft, their substantiation and the method for controlling the aircraft configuration in order to remain within the established conditions are termed 'Flight Conditions'.
The establishment and approval of Flight Conditions on a G-registered aircraft is done either by the UK us or a UK design organisation with appropriate competence and privilege. When approved by us, we will complete a CAA Form 18B to confirm the approval of safety design-related Flight Conditions.
The approval of Flight Conditions is related to the safety of the design when:
When the approval of Flight Conditions is not related to the safety of the design, refer to the guidance on the Permit to Fly page.
Anyone may apply for our approval of safety of design-related Flight Conditions.
When the approval of Flight Conditions is related to the safety of the design, an application is made using CAA Form SRG1767 and completion of CAA Form 18B.
Application guidance for approval for of Flight Conditions not related to the safety of the design can be found on the Permit to Fly page.
Submit an application on CAA Form SRG1767 and a CAA Form 18B with Blocks 1 through to 12 completed.
Block 6 of the CAA Form 18B will detail the aircraft configuration, including in what way(s) the aircraft does not comply with the applicable airworthiness requirements.
Block 7 of the CAA Form 18B will detail the substantiation that the
aircraft can fly safely and Block 8 will detail any conditions or
CAA will review the data presented on the CAA Form 18B and consider
the conditions for safe flight, particularly the detail in Blocks 7 and 8
CAA may require the Applicant to re-submit the Form 18B if amendments
to substantiation or conditions/restrictions are required.
Permits to Fly (PtF) are a State of Registry responsibility. A PtF is issued in accordance with (UK/EU) Part 21 Subpart P. Any natural or legal person can apply (no nationality restrictions) for the approval of Flight Conditions (FC) or the issuance of a PtF:
State of Registry NAAs issue a PtF on the basis of approved Flight Conditions. Consequently:
The PtF holder should be the one operating the aircraft under the PtF. A PtF is a domestic document. Permission of local NAA(s) is required for performing flight(s) outside the State of Registry airspace.
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