What was found
ENG FIRE DETECT FAIL R AMBER CAS: IN CRUISE FLIGHT AT FL380 AMBER 'ENG FIRE DETECT FAIL R' CAS MESSAGE DISPLAYED. REMOVED INTERNAL FIRE & OVERHEAT SENSOR, PN:- 30B5702-01 ; SN: 121604. FROM RH ENGINE; DUE TO ENG FIRE DETECT FAIL R AMBER CAS MESSAGE DISPLAYED. INSTALLED NEW INTERNAL FIRE & OVERHEAT SENSOR, PN: 30B5702·01 ; SN: 175189, IN RH ENGINE. POST MAINTENANCE OPERATIONAL & LEAK CHECKS PERFORMED WITH NO DEFECTS NOTED. ALL MAINTENANCE ACCOMPLISHED IAW PW306C EMM CH 26-10·01 & 72-00-00.