A system for retaining a fuel nozzle premix tube includes a retention plate and a premix tube which extends downstream from an outlet of a premix passage defined along an aft side of a fuel plenum body. The premix tube includes an inlet end and a spring support feature which is disposed proximate to the inlet end. The premix tube extends through the retention plate. The spring retention feature is disposed between an aft side of the fuel plenum and the retention plate. The system further includes a spring which extends between the spring retention feature and the retention plate.
FEDERAL RESEARCH STATEMENT
 This invention was made with United States Government support under contract number DE-FC26-05NT42643 awarded by the Department of Energy. The United States Government may have certain rights in the invention.