Search Results for keywords:"replacement requirement"

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Search Results: keywords:"replacement requirement"

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  • 2025-06066 — Airworthiness Directives; Thommen Aircraft Equipment AG Digital Air Data Computers
    Type:Rule
    Citation:90 FR 15304
    Reading Time:about 10 minutes

    The Federal Aviation Administration (FAA) has issued a new airworthiness directive (AD) for certain Thommen AC32 Digital Air Data Computers due to malfunctions occurring at low temperatures. This rule mandates the replacement of defective computers with ones that work correctly to ensure aircraft safety. Effective from May 15, 2025, the directive also includes additional helicopter models that might be affected and prohibits installing faulty parts on any aircraft. The rule aims to prevent issues with navigational data that could compromise flight control.

    Simple Explanation

    The FAA is making a new rule that says certain airplane computers need to be swapped out because they don't work in really cold weather, which could be dangerous. This rule tells people to use a good computer part instead, starting in May 2025, to help keep planes flying safely.

  • 2021-03660 — Airworthiness Directives; Leonardo S.p.a. Helicopters
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    Type:Rule
    Citation:86 FR 11410
    Reading Time:about 13 minutes

    The Federal Aviation Administration (FAA) has issued a new airworthiness directive for certain Leonardo helicopter models, specifically AB139 and AW139. This directive mandates the removal of specific engine mounting rods that do not conform to standards and prohibits their installation on any helicopter, as these rods could potentially fail and cause loss of control of the aircraft. The directive is effective from April 1, 2021, and operators are expected to ensure compliance by replacing the non-conforming rods with approved ones. This action was initiated due to a report of non-conforming parts and aims to enhance the safety of these helicopters.

    Simple Explanation

    The FAA told certain helicopter owners that they must swap out some broken parts that hold the engine because using them could lead to bad crashes, and they can't use those parts again.