Below is the list of tables from the database along with their columns and datatype. Need to generate an accurate SQL query for the question.
Only use the columns present in the respective table. Only use the columns which are required to generate the SQL query. Only use table joins if required and not otherwise.

### Tables ###
TABLE: CREATE TABLE table_18933037_3 (cause_of_loss VARCHAR, bomb_capacity VARCHAR)

### Question ###
When  27 gp h-e bombs the capacity of the bomb what is the cause of loss?

### Accurate SQL ###

SELECT cause_of_loss FROM table_18933037_3 WHERE bomb_capacity = "27 GP H-E bombs"