SELECT year AS Retired FROM table_name_2 WHERE fuel_propulsion = "diesel" AND length = "40'" AND numbers__quantity_ordered_ = "3701-3729 (29 buses)"
Tahun berapa propulsi bahan bakar diesel, dengan panjang 40 ', dan angka (kuantitas yang dipesan) dari 3701-3729 (29 bus), pensiun?
CREATE TABLE table_name_2 (year VARCHAR, numbers__quantity_ordered_ VARCHAR, fuel_propulsion VARCHAR, length VARCHAR)