What was found
DURING TRANSIT CHECK, FIRE ALARMS IN BOTH ENGINES DID NOT OPERATE AND ONLY LIGHTS TURNED ON. DURING REVISION DETECTED FIRE WARNING AURAL SWITCH OPERATED CORRECTLY. AMPLIFIER CONNECTORS WIRING WAS VERIFIED, SYSTEM CHECKED OKAY. DURING REVISION DETECTED THE RIGHT ENGINE AMPLIFIER WITH FAILURE. AMPLIFIER DETECTOR UNIT A2-6 WAS REPLACED, TESTED CORRECT. REJECTED TAKEOFF AS A CONSEQUENCE OF RIGHT ENGINE DID NOT REACH TAKEOFF EPRS OF 1.98, IT STAYED IN 1.80 EPR INCREASING EGT TEMPERATURE. AIRCRAFT SENT TO HANGAR, PT7 & PT2 LEAK CHECK PERFORMED, PRBC LINES TIGHTENED, ACCELERATION CHAMBER AND ANTI SURGE VALVES WERE LUBRICATED, RUDDER PT2 UNION REPLACED AND REMOTE CONTROL TRIM PERFORMED, TESTED CORRECT.