Final answer:
The EGT limit for A319/A320/A321 engines varies depending on the specific engine model and thrust settings. The time limit is also determined by the manufacturer and can vary.
Step-by-step explanation:
The EGT limit for A319/A320/A321 aircraft varies depending on the specific engine model and thrust settings. For the N501-N534, N587, N588, N601-N649, and N657-N672 engine models, the EGT limit is determined by the manufacturer. It is important to reference the engine manufacturer's documentation or consult the aircraft's operating manual for the specific EGT limits.
As for the time limit, it is again determined by the manufacturer and can also vary depending on the engine model and thrust settings. The time limit refers to the maximum amount of time the engine can operate at a certain EGT limit without causing damage or exceeding performance limits.