This maintenance manual covers the Enstrom F28F and 280F helicopters, designed for general aviation use. These aircraft are powered by a Lycoming HIO-360-C1A engine producing 205 horsepower and utilize Aviation Gasoline (Avgas). The helicopters feature a robust rotor drive system and can accommodate up to four occupants. Engineered for reliability and performance under Visual Flight Rules (VFR) conditions, the Enstrom F28F and 280F represent a significant contribution to the general aviation sector.

This comprehensive maintenance manual provides essential information for the upkeep and repair of your Enstrom helicopter. It details critical maintenance procedures, troubleshooting guidance, technical specifications, and safety protocols. With 655 pages of information, this document, published in December 1994, serves as an indispensable resource for owners, mechanics, and technicians. Adhering to the guidelines within this manual will ensure the continued airworthiness and optimal performance of your aircraft.