What was found
HYD PRESS SYS 1 CAUTION MSG IN FLIGHT. BOTH ENG AND DEMAND PUMP ON SYSTEM 1 INOP(<P>R/R #1 ENG DRIVEN PUMP. REMOVED & INSPECTED ALL SYS 1 HYD FILTERS, NO CONTAMINATION OR DISCREPANCIES FOUND. ENGINE IDLE RUNS & LEAK CHECK NORMAL. REF LP 1797125 M5: R/R ADP 1, OPS AND LEAK CHK OK PER AMM 29-11-08-401. REF LP 1797125 M6: R/R #1 ENG DRIVEN PUMP IAW AMM 29-11-05. ENGINE IDLE TEST RUN AND LEAK CHECK NORMAL IAW AMM 71-00-00. THIS ACTION CLEARS DMI #206802. PLACARD REMOVED.</P>)