What was found
ENGINE REVERSER L LEFT ENGINE THRUST REVERSER CONTROL SYSTEM FAULT AND AIRPLANE ON GROUND. REVERSER IS INOP IN FWD THRUST POSITION. REVERSER DIRECTIONAL CONT VALVE P/N 312W3130-1 IPC78-34-01-002 REF MSG 78-00011 AND FIM 7 8-34 TASKS 805-806. PER FIM 78-34 TASKS 805- 806 ITEM D4. CHECKED SOLENOID RESISTANCE ON ISOLATION VALVE. OHM GOOD. CLEANED CONNECTOR & SECURED, REACTIVATED LEFT REVERSER, PRESSURIZED SYSTEM AND DEPLOYED & RETRACTED REVERSER, OPS GOOD.