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upthrust    
n. 冲上,地壳隆起

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  • Airworthiness Directives - Federal Aviation Administration
    Airworthiness Directives (ADs) are legally enforceable regulations issued by the FAA in accordance with 14 CFR part 39 to correct an unsafe condition in a product Part 39 defines a product as an aircraft, engine, propeller, or appliance
  • Dynamic Regulatory System
    Dynamic Regulatory System
  • Airworthiness Directive (AD) - Content Format | Federal Aviation . . .
    Airworthiness Directive (AD) - Content Format Airworthiness Directives (ADs) consist of two parts, the preamble and the rule The preamble provides the basis and purpose of the AD The rule portion provides regulatory requirements for correcting the unsafe condition
  • Airworthiness Directives (AD) - Applicability and Compliance
    Airworthiness Directive (AD) How do I determine the applicability of an AD? The AD subject line specifically identifies the Type Certificate Holder of the product (s) affected by the AD Specific model (s) affected, and any special considerations such as specific installed part number (s) or modification (s), are listed in the AD applicability section How do I find all applicable ADs to a
  • AC 20-176A - Service Bulletins Related to Airworthiness Directives and . . .
    This AC also provides information and guidance on ex parté communication and alternative methods of compliance (AMOC), as well as means for avoiding overlapping and conflicting actions in SBs and maintaining airworthiness of AD-mandated design changes This revision, AC 20-176A, includes guidance for indicating FAA approval on a service document
  • Airworthiness Directives (ADs) - Federal Aviation Administration
    Airworthiness Directives (ADs) FAA Authority Airworthiness Directives (ADs) are legally enforceable rules issued by the FAA in accordance with 14 CFR part 39 to correct an unsafe condition in a product 14 CFR part 39 defines a product as an aircraft, aircraft engine, propeller, or appliance AD Development and Issuance FAA Order 8040 1 defines FAA 's authority and responsibility for the





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