EE STATED HIS KNEE POPPED WHILE PERFORMING MAINTENANCE ON 3-2-01. DID NOT REPORT INCIDENT UNTIL 3-5-01 AT WHICH TIME SAW DR. RELEASED FOR LIGHT DUTY UNTIL 3-9-01. DETERMINED 3-12-01 NOT TO WOR K PER DR.'S ORDERS. MRI COMPLETED 3-13-01. NO RESULTS YET.