what is the maximum tonnage where date entered service is 25 march 1986 
CREATE TABLE table_11662133_3 (tonnage INTEGER, date_entered_service VARCHAR)
SELECT MAX(tonnage) FROM table_11662133_3 WHERE date_entered_service = "25 March 1986"
<s>[INST] Write mssql query to answer the following question given the database schema. Schema: CREATE TABLE table_11662133_3 (tonnage INTEGER, date_entered_service VARCHAR) Question: what is the maximum tonnage where date entered service is 25 march 1986  [/INST] SELECT MAX(tonnage) FROM table_11662133_3 WHERE date_entered_service = "25 March 1986" </s>