AD 2020-26-07 Continues To Require Revising The Existing Maintenance Or Inspection Program

The FAA is superseding Airworthiness Directive (AD) 2019-23-05, which applied to all Dassault Aviation Model MYSTERE-FALCON 900 airplanes. AD 2019-23-05 required revising the existing maintenance or inspection program, as applicable, to incorporate new or more restrictive airworthiness limitations.

This AD continues to require revising the existing maintenance or inspection program, as applicable, to incorporate those new or more restrictive airworthiness limitations, and also requires revising the existing maintenance or inspection program, as applicable, to incorporate additional new or more restrictive airworthiness limitations; as specified in a European Union Aviation Safety Agency (EASA) AD, which is incorporated by reference. This AD was prompted by a determination that new or more restrictive airworthiness limitations are necessary. The FAA is issuing this AD to address the unsafe condition on these products. This AD is effective January 25, 2021.

SUPPLEMENTARY INFORMATION: The EASA, which is the Technical Agent for the Member States of the European Union, has issued EASA AD 2020-0115, dated May 20, 2020 (EASA AD 2020-0115) (also referred to as the Mandatory Continuing Airworthiness Information, or the MCAI), to correct an unsafe condition for all Dassault Aviation Model MYSTERE-FALCON 900 airplanes.

The FAA issued a notice of proposed rulemaking (NPRM) to amend 14 CFR part 39 to supersede AD 2019-23-05, Amendment 39-19799 (84 FR 67169, December 9, 2019) (AD 2019-23-05). AD 2019-23-05 applied to all Dassault Aviation Model MYSTERE-FALCON 900 airplanes.

The NPRM published in the Federal Register on August 19, 2020 (85 FR 50970). The NPRM was prompted by a determination that new or more restrictive airworthiness limitations are necessary. The NPRM proposed to continue to require revising the existing maintenance or inspection program, as applicable, to incorporate new or more restrictive airworthiness limitations. The NPRM also proposed to require revising the existing maintenance or inspection program, as applicable, to incorporate additional new or more restrictive airworthiness limitations, as specified in a EASA AD. The FAA is issuing this AD to address reduced structural integrity of the airplane. See the MCAI for additional background information.

FMI: www.regulations.gov