This SAE Aerospace Standard (AS) provides standard methods for testing main engine and auxiliary power unit installations to demonstrate fireproofness or fire resistance. The standard addresses:
• test equipment, instrumentation, and calibration;
• test boundary conditions and test setup;
• test pass/fail criteria
Rationale: In March 2018, the FAA tasked SAE International to develop industry standards to support an update to AC20-135, Powerplant Installation and Propulsion System Component Fire Protection Test Methods, Standards, and Criteria. Industry standardization is needed due to the wide variation in practices.