A4A SG M-LOSA & R-LOSA 2012 provides implementation guidance for Maintenance Line Operations Safety Assessment (M-LOSA) and Ramp LOSA (R-LOSA) programs. Developed as Safety Guidelines SG 909 by Airlines for America, this PDF outlines LOSA concepts, preparation activities, infrastructure development, observer selection, data collection, reporting, feedback, and continuous improvement practices for aviation maintenance and ramp environments.
The document covers Safety Management System context, Threat and Error Management principles, nonpunitive peer-to-peer observations, LOSA training, database and reporting considerations, observation conduct, data validation, and practical checklists for maintenance and ramp observations. It is intended to support organizations planning, launching, or refining LOSA programs as part of broader aviation safety efforts.
Application Scope: Intended for LOSA program managers, safety teams, implementation teams, airline maintenance organizations, ramp operations groups, and aviation stakeholders using voluntary safety assessment methods to identify threats, errors, at-risk behaviors, and opportunities for continuous safety improvement.
