ADS-79D-HDBK Downloaded from https://www.everyspec.com Initial Capability: The level of performance that a physical asset or system is capable of achieving at the moment it enters service. (SAE JA1011) Integrity: Attribute of a system or a component that can be relied upon to function as required by the criticality determined by the Functional Hazard Assessment (FHA). (AC-29-2C) Maintainer: A person or organization that may either suffer or be held accountable for the consequences of a functional failure or multiple failures by virtue of performing maintenance functions on behalf of the User and/or owner of the asset or system. (SAE JA1011) Mitigating Action:
An autonomous and continuing compensating factor which may modify the level of qualification associated with certification of a HUMS application. This action becomes a part of the certification requirements and, as such, is required to be performed as long as that certification requirement is not changed by a subsequent re-certification. An example of a mitigating action is a pilot's comparison of airborne HUMS data with aircraft instrument data. (AC 29-2C) Multiple Failure: An event that occurs if a protected function fails while its protective device or protective system is in a failed state. (SAE JA1011) Net P-F Interval:
The minimum interval likely to elapse between the discovery of a potential failure and the occurrence of the functional failure. (SAE JA1012) Non-Operational Consequences: A classification assigned to failure modes that do not adversely affect safety, the environment, or operations, but only require repair or replacement of any item(s) that may be affected by the failure. (SAE JA1011) On-Condition Task: A periodic or continuous task used to detect a potential failure. (SAE JA1011) One-Time Change:
Any action taken to change the physical configuration of an asset or system (redesign or modification), to change the method used by an operator or maintainer to perform a specific task, to change the operational context of the system, or to change the capability of an operator or maintainer (training). (SAE JA1011) Operational Context: The circumstances in which a physical asset or system is expected to operate. (SAE JA1011) Operational Consequences: A classification assigned to failure modes that adversely affect the operational capability of a physical asset or system (output, product quality, customer service, military capability, or operating costs in addition to the cost of repair).
SAE JA1011) Owner: A person or organization that may either suffer or be held accountable for the consequences of a functional failure or multiple failure of an asset or system by virtue of ownership of that asset or system. (SAE JA1011) 187