Know your SUPs

Suspected Unapproved Parts
Know exactly what is going into your aircraft! SUPs can range from parts that lack proper documentation to parts that are counterfeit. SUPs can be parts rejected during production because of defects; parts that lack required documentation; parts that have been improperly maintained; and parts from military aircraft that have not been shown to comply with FAA requirements.

SUPs may also include items from a supplier who produces parts for an approved manufacturer and then ships them directly to end users without the approved manufacturer’s authorization; there is no guarantee that they meet all quality control requirements.

To learn more, visit the FAA site:

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