What was found
CABIN ODOR PRESENT DURING CLIMB, RECURRING DURING DESCENT. FLIGHT ATTENDANTS REPORTED THE ODOR AT THE L2 & R2 DOORS DURING CRUISE. THE AIRCRAFT WAS GROUNDED. MAINTENANCE REPLACED THE LEFT ENGINE IAW JC 33L40071003. MAINTENANCE ALSO ACCOMPLISHED JC 33L00021001, 33L00071001, AND 33L0002102.