Abstract

Operational safety in commercial aviation fundamentally depends on the effectiveness of aircraft engine maintenance programs. The Pratt & Whitney PW1100G engine, equipped with Geared Turbofan (GTF) technology, represents one of the most advanced propulsion technologies for the Airbus A320neo family, requiring highly specialized maintenance programs. This work aims to analyze the structure and implementation of the PW1100G engine preventive maintenance program, evaluating its effectiveness in reducing operational failures and its impact on flight safety in Brazilian commercial aviation. The methodology adopted consists of a qualitative and descriptive case study, focusing on documentary analysis of technical manuals and operational reports from a Brazilian airline. The results demonstrate that the Maintenance Planning Document (MPD) constitutes a fundamental basis for organizing intervention schedules, defining tasks categorized into visual inspections, functional tests, scheduled replacements, and overhauls. The Engine Condition Monitoring (ECM) system integrated into the engine represents a significant advance in predictive maintenance, enabling early detection of degradation trends through continuous monitoring of critical parameters such as exhaust gas temperatures, oil pressures, and vibrations. Effective implementation of these systems results in measurable improvements in operational safety indicators, including increased fleet availability, reduced cancellations due to technical reasons, and strengthened regulatory compliance. The study confirms that structured maintenance programs transcend compliance with regulatory requirements, configuring themselves as strategic tools that sustain operational efficiency and reinforce the safety culture in modern commercial aviation.

Keywords

aircraft maintenance, PW1100G engine, aircraft maintenance planning