What was found
CAPTAIN REPORTED THE LEFT ENGINE FIRE TEST OUT OF SERVICE. DURING REVISION, LOOP-A AND BAND LT ENGINE FIRE SHUT OFF LEVER LIGHTS DID NOT TURN ON. THE CONNECTORS P1-823, P1-822 AND P1-824 WERE CHECKED, BEING CORRECT. DURING REVISION BY CONTINUITY AND ISOLATION, IT WAS DETECTED THE BASKET WIRING OPENED AND THE CONNECTORS P1-824 AND P1-825 WITHOUT CONTINUITY PER TWO LINES INVERTED AT THE INFERIOR BASKET OF CONNECTORS P1-859 AND P1-854. THE CONNECTORS WERE INSTALLED CORRECTLY IAW MM 26-10-00, TESTED CORRECT. DURING OVERNIGHT CHECK, THE FIRE DETECTING SYSTEM WAS TESTED IAW MM 26-10-00, ALL CORRECT.