What was found
ENG1 LOOP A FAULT DURING CLIMB OUT. APPEARED AND WENT AWAY AFTER A SHORT TIME ON FIRST FLIGHT, OCCURRED AGAIN TWICE DURING 2ND FLIGHT (ALSO DURING CLIMB OUT). RELEASED FOR SERVICE PER MEL: 26-XX-XXC CAT: C EXP: 14JUL24 ENG 1 LOOP A - INOP. FLIGHT CREW MUST PERFORM FUNCTIONAL TEST OF ENG FIRE WARNING SYSTEM PRIOR TO EACH DEPARTURE." AMM: 26-XX-XX-XX AMM: 26-12-XX-XX TEST #1 ENGINE FIRE DETECTOR FOUND NO FAULTS. REMOVED AND REPLACED 11WD FIRE DETECTOR UNIT AS PER M/M 26-12-XX-XX AND TESTED AS PER M/M 26-12-XX-XX ALL TEST PASSED, A/C OK FOR SERVICE. INSTALLED PART IS FROM THE CASH PROGRAM.