New Guide for In-Time Aviation Safety Management System (IASMS) Functionality
1. Scope
1.1 This ”standard guide” is intended for Unmanned Aircraft System (UAS) designers and service providers seeking to increase awareness of potential approaches that are suitable for In-Time Aviation Safety Management System (IASMS) functionality, and to aid UAS and IASMS design, implementation, evaluation, and operation.
1.2 Per the guidance in Form and Style for ASTM Standards, this standard guide should not be used directly as a specification for a capability, system, service, or function for an IASMS. Instead, it serves as a reference to develop a specification for an IASMS capability, system, service, or function. Additionally, this standard guide can be used as a reference for how UAS (including the unmanned aircraft and its associated elements) could be developed or augmented with IASMS functionality.
1.3 This standard guide is structured using IASMS functions, specifically focusing on the IASMS approach, which include monitoring, assessment, and mitigation. IASMS functions also include data exchange as a supporting yet essential fourth component. These functions are detailed in individual sections.
1.4 Not every type of UAS operation, including its user(s), environment, associated elements (“AE”), and the UAS itself, is addressed comprehensively. Rather, a representative range of approaches for IASMS functionality is provided.
1.5 Units
1.5.1 This standard does not prescribe physical measurement units. Where time, rates, or probabilities are referenced, units are as defined by the implementing system or governing authority.
1.6 This standard guide does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard guide to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.
1.7 This international standard guide was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of international Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
Keywords
assess; capability; component; data exchange; fault; hazard; In-Time Aviation Safety Management System; mitigate; monitor; risk; system element
Rationale
This standard guide is needed because existing standards and associated guidance do not address fault and failure modes that are crosscutting in terms of the UAS, services, systems, operator, and the environment. Additionally, there is no standard that provides potential approaches for how to monitor or alert in response to the presence of such fault and failure modes, how to assess their impact on flight and supporting capabilities (such as navigation) and risk, and how to approach mitigating them during flight operations. Existing standards’ individual requirements for functions like monitoring and alerting may share names with IASM functions, however these standards do not sufficiently address integration-level failure modes identified in this guide.
The intended users and usage of this standard guide is summarized in 1.1.
