When the engine is operated in accordance with operating instructions required by Sec. 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]