The X30569A IO-550 Parts Manual provides comprehensive information for maintaining and repairing the IO-550 aircraft engine. This manual covers the A, B, C, and G series of the engine. With 83 pages of detailed diagrams and descriptions, it offers a complete guide to identifying and ordering parts for your engine. This manual is an indispensable resource for aircraft mechanics, pilots, and anyone involved in maintaining the IO-550 engine. It ensures accurate and efficient servicing, maximizing performance and extending the lifespan of your aircraft engine.

The Lycoming IO-550 is a six-cylinder, horizontally opposed, air-cooled, fuel-injected aircraft engine renowned for its reliability and power. It was introduced in 1978 and quickly gained popularity among general aviation pilots, becoming a staple in single-engine aircraft like the Cessna 172, Piper Cherokee, and Beechcraft Bonanza. The IO-550 is a direct descendant of the legendary Lycoming IO-360, inheriting its robust design and ease of maintenance. It boasts a displacement of 5.5 liters (335 cubic inches) and delivers a range of power outputs, from 200 to 310 horsepower, depending on the specific model and configuration. Its use of fuel injection technology ensures efficient fuel consumption and consistent performance across various altitudes and temperatures. Beyond its robust construction, the Lycoming IO-550 is lauded for its exceptional reliability. Its simple design, with minimal moving parts, reduces the risk of component failure and contributes to its long service life. The engine has been thoroughly tested and certified by the Federal Aviation Administration (FAA), meeting stringent safety standards. Its user-friendly maintenance procedures further enhance its desirability among aircraft owners. With a dedicated network of certified mechanics and readily available parts, the IO-550 guarantees peace of mind for pilots seeking reliable performance in the skies. Coupled with its impressive power-to-weight ratio and smooth operation, the Lycoming IO-550 remains a popular choice for a wide range of aircraft, solidifying its reputation as a workhorse of the general aviation industry.