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Maintenance Significant Item

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Article Information
Category: Airworthiness Airworthiness
Content source: SKYbrary About SKYbrary
Content control: EUROCONTROL EUROCONTROL
Publication Authority: SKYbrary SKYbrary

Definition

An item whose failure or malfunction could have one or more of the following effects or characteristics:

  • affect safety on the ground or in flight
  • be undetectable during operations
  • have significant operational economic impact
  • have significant non-operational economic impact.

It is sometimes referred to as a Safety Significant Item (SSI)

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