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Which validity does the "Certificate of Airworthiness" have?

  • A

    12 months.

  • B

    6 months.

  • C

    Unlimited.

  • D

    12 years.

Part 21 refers to Airworthiness and Environmental Certification. All Part 21 aircraft types that qualify for a Part 21 Certificate of Airworthiness (C of A) are issued with a non-expiring C of A, which is validated annually with an Airworthiness Review Certificate (ARC).

This annual validation occurs when a new ARC is issued, or the validity of a current ARC is extended.

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