Final answer:
The correct maximum EGT for TRT is 477°C, but the provided reference does not include a time limit, which should be consulted directly in the technical manual.
Step-by-step explanation:
The subject of this question pertains to engine EGT (Exhaust Gas Temperature) values for aircraft during Takeoff Rated Thrust (TRT).
This is a technical specification found within an aircraft maintenance or operations manual, in this case, specifically referenced as TO 1E-8C-1, page 5-10. Based on the provided reference information, the correct maximum EGT for TRT would be 477°C, but no time limit is provided in the given reference.
Typically, there would be a time limit specified for operating at TRT to ensure engine safety and efficiency, but this information must be looked up directly in the appropriate technical publication for accurate data.
The correct maximum EGT for TRT is 477°C, but the provided reference does not include a time limit, which should be consulted directly in the technical manual.