Modifications
In general all modifications to BMAA aircraft require approval. The Permit to Fly is issued/revalidated on the basis that the aircraft is to an approved design. If an aircraft is modified the design is changed and the modification must be approved if the Permit to Fly is to remain valid. An aircraft incorporating an unapproved modification may not be legally flown on its Permit to Fly (or Check Flown for revalidation of its Permit to Fly).
