How many takeoffs and landings must flight crew members for an air taxi service perform within a 90-day period?

Flight crew members for an air taxi service are required to perform a minimum of three takeoffs and three landings within a 90-day period to maintain their currency for that specific operation. This requirement ensures that pilots are proficient in maneuvering the aircraft safely, which is vital for passenger transport and cargo operations typical to air taxi services. Performing three takeoffs and landings also aligns with regulatory standards designed to enhance safety and provide adequate practice, thus preparing pilots for the unique challenges of their flying duties.

Both fewer and higher numbers, such as two or four takeoffs and landings, do not meet the established regulatory or operational standards, which explicitly specify the necessity of three to ensure that flight crew members are competent and confident in flying and landing the aircraft effectively.