What was found
DURING CLIMB OUT, PASSING 26,000 FT, ECS 1 VALVE FAIL CAS MESSAGE DISPLAYED. NOTICED A GREASE ODOR IN THE COCKPIT. PERFORMED MX RUNS OF BOTH NR 1 & 2 ENGINES AT VARIOUS SPEEDS. RAN CABIN ENVIRONMENTAL SYS AT VARIOUS TEMPS & SETTINGS. INSPECTED BOTH NR 1 & 2 FCFOV, ECS, VALVES & WIRING. NO SMOKE, FUMES OR ODORS WERE NOTICED AT ANY TIME. NO CAS MESSAGES WERE DISPLAYED & ALL FUNCTIONS ON PNEUMATIC SYNOPTIC DISPLAY WERE NORMAL. PERFORMED CMC FAULT HISTORY DOWNLOAD. PERFORMED FAULT ISOLATION PROCEDURE IAW TASK 21-21-00-81 0-802-A, SECTION G BLOCK DIAGRAM 1 SUBTASK 81 0-008-A 1 & 5 NO CAS MESSAGES OR DISCREPANCIES NOTED AT ANY TIME.