Guidance on managing the "flat-bottomed" nacelles designed to provide ground clearance on the low-slung 737 frame. Operational Phases Covered
Weight and balance calculations for the stretched -300 fuselage. 737-300 flight manual
The manual highlights the specific evolution of the 737-300 compared to its predecessors: 737-300 flight manual
The documentation is typically divided into several critical handbooks used by airlines like Jet2 and formerly Southwest : 737-300 flight manual