What was found
ON CLIMB TO RNO WE GOT A DEICE PRESS CAUTION RAN CHECKLIST AND DID NOT RESOLVE ISSUE. DIVERTED. REMOVED FROM SERVICE. INTERROGATED CDS AND FOUND FAULT 4 B LOW PRESSURE. REMOVED AND REPLACED #4 DDV REF-400 AMM 30-11-16-000-801, 30-11-16-400801 REF AMM 57-23-01-000-801, 57-23-01-400-801 FOR REMOVAL AND RE INSTALLED LEADING EDGE PANEL #613AR CLEARED ALL FAULTS FROM CDS. C/W OPERATIONAL TEST OF THE PNEUMATIC DE-ICING SYSTEM REF. AMM TASK 30-11-00-710-804 INTERROGATED CDS AND FOUND NO FAULTS AT THIS TIME OPS CK. GOOD NO OTHER DEFECTS NOTED AT THIS TIME. AIRCRAFT RETURNED TO SERVICE.