What company focuses on Engine Overhaul for their principal activity?
CREATE TABLE table_name_7 (company VARCHAR, principal_activities VARCHAR)
SELECT company FROM table_name_7 WHERE principal_activities = "engine overhaul"
### Context: CREATE TABLE table_name_7 (company VARCHAR, principal_activities VARCHAR) ### Question: What company focuses on Engine Overhaul for their principal activity? ### Answer: SELECT company FROM table_name_7 WHERE principal_activities = "engine overhaul"