What was found
UPON COMPLETION OF INSPECTION E1 OF FLEXIBLE MAINTENANCE SCHEDULE FOR THE FUNCTIONAL TEST OF MAIN ENGINE FIRE EXTINGUISHERS THE TECH NOTICED THAT THE WIRING INSTALLATION WAS INCORRECT. FOUND CONNECTOR PLUGS ON NR 2 (GJ) HEAD (A) AND (B) IN OPPOSITE POSITIONS. REROUTED WIRE HARNESS TO ALLOW FOR CORRECT WIRE HARNESS TO ALLOW FOR CORRECT WIRE ROUTING OF ENG 2: SHOT 1 CIRCUIT TO REACH HEAD (B), ALSO WIRED ENG 1: SHOT 2 TO HEAD A. OPS CHECK GOOD, NOTED THAT NONE OF THE CORRECTOR CONNECTION.