If the RAT was indicating 99 C, then the Thrust Rating Computer was getting inaccurate information.
And if the RAT was high, then the TRI would set the EPR Takeoff Limit artificially low.
When the RAT is inoperative, our MEL specifies that Autothrottles must also be placarded inoperative. Only manual thrust for takeoff.
If we leave with an inoperative RAT, then we must use SAT via the PMS or GFMS or FMS to set climb limit thrust limits.
Dave
