EASA Part 145 governs commercial aircraft maintenance organizations. Approval granted by competent authority, national aviation authority in EU. Outside EU, approval handled by EASA itself
Part governs maintenance and alteration of U.S. and foreign aircraft. Does not apply to experimental certificates or light-sport aircraft. Applies to airframe, engines, propellers, and component parts
AMM provides detailed technical maintenance instructions for specific aircraft types. Manual is part of Instructions for Continued Airworthiness (ICA). Content follows ATA Specification 2200 and ASD-STE100 standards
Bonding jumpers are conductive cables used to create safe electricity pathways. Made of highly conductive materials like copper. Designed to carry current without resistance between airplane components
MEL allows aircraft dispatch with inoperative equipment and lists required conditions. Wing attachment and normal engine thrust assumed in MEL application. Non-airworthiness items must be defined in operator's maintenance program
Fuel delivery system includes tanks, pumps, strainers, valves, and sensors. Two main delivery methods: gravity fed and pumped systems. Gravity fed systems require 150% take-off fuel flow rate. Pump fed systems need 125% maximum flow rate with redundancy