A C441 RETURNED TO THE FIELD AFTER TKOF DUE TO PWR LOSS IN #1 ENG. EMER DECLARED.

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DURING CLB; EXPERIENCED PWR LOSS #1; L-HAND ENG. ENG TORQUE INDICATIONS 300 LBS EGT OVER RED LINE. FEATHERED AND SECURED ENG. DISCUSSED SIT WITH ZSE. RETURNED TO BLI; DECLARED EMER WITH TWR FOR PRIORITY HANDLING INTO ATA. ISOLATED PROB AND REPLACED INTERMITTENT FAULT IN EGT COMPENSATION RESISTOR ON ENG. THIS PARTICULAR PROB; HAD IT OCCURRED AT TKOF DURING ROTATION; WOULD HAVE CREATED DIRECTIONAL CTL DIFFICULTY. THE ENG COMPUTER SENSES OVERTEMP AND REDUCES PWR ON THE ENG THROUGH THE AUTOTORQUE AND TEMP LIMITING FUNCTION. THE NEGATIVE TORQUE SENSING SYS WILL NOT FUNCTION WITH 300 LBS TORQUE AND THE ENG IS PRODUCING MORE DRAG THAN THRUST AND WILL NOT AUTOFEATHER. THIS SIT CAN BE ISOLATED BY SWITCHING OFF THE AUTOTORQUE AND TEMP LIMITING FUNCTION TO THE ENG COMPUTER. CALLBACK CONVERSATION WITH RPTR REVEALED THE FOLLOWING INFO: ACFT WAS A CESSNA CE441 WITH GARRETT 331 ENGS. THE NEGATIVE TORQUE SENSING COMPUTER MUST BE USED FOR TKOF. IN THIS CASE; THE PWR WAS REDUCED TO 300 LBS OF TORQUE AND THE COMPUTER WILL NOT AUTOFEATHER AT THIS LOW TORQUE. PROP REMAINED IN FLAT PITCH; HIGH DRAG CONDITION. THIS IS A BAD SIT IF THIS OCCURRED ON TKOF. THE RPTR DID CONTACT THE FAA TO FILE A RPT ON THIS CONDITION.