What was found
ON POWER-UP FOR TAKEOFF, NR 1 REVERSE UNLOCK LIGHT ILLUMINATED. EXTINGUISHED AFTER RETURNING THROTTLES TO IDLE. RETURNED TO GATE. RELEASED FOR SERVICE PER MEL/CDL: 78-30-01-C CATEGORY: C EXPIRATION: 28JUL07 "MEL 78-30-01-C: ENGINE (IDENTIFY 1 OR 2. NR 1 THRUST REVERSER INOP. THRUST REVERSER IS DEACTIVATED IN FORWARD THRUST POSITION." [07-27-07] R & R RESSURE REGULATING AND SHUT OFF VALVE PER MM 78-31-05-4. REACTUATED TR PER MM 78-31-00-9. OP'S CHECKS NORMAL PER MM 78-31-00-5 AND PER A300. OKAY FOR SERVICE.