Best Practices Developed With Input From Business Aircraft Operators Of All Sizes NBAA’s Airplane Standard Operating Procedures (SOP) Manual has been updated based on member feedback and best practices, and now is available for download to all association members. First published in October 2025, the manual incorporates best practices developed with input from business aircraft operators of all sizes, aircraft manufacturers and training experts. Designed for Part 91 and Part 135 operations with single-pilot, multi-pilot, single-engine or multi-engine operations, the SOP was created to improve safety through standardization and ensure consistency among multi-fleet operators and dynamic crew and staffing situations.
