14 C.F.R. § 33.65 Surge and stall characteristics.
Title 14 - Aeronautics and Space
When the engine is operated in accordance with operating instructions required by §33.5(b), starting, a change of power or thrust, power or thrust augmentation, limiting inlet air distortion, or inlet air temperature may not cause surge or stall to the extent that flameout, structural failure, overtemperature, or failure of the engine to recover power or thrust will occur at any point in the operating envelope. [Amdt. 33–6, 39 FR 35466, Oct. 1, 1974]
Title 14: Aeronautics and Space
PART 33—AIRWORTHINESS STANDARDS: AIRCRAFT ENGINES
Subpart E—Design and Construction; Turbine Aircraft Engines
§ 33.65 Surge and stall characteristics.
