Make a Cajun seasoning blend by combining the salt, white pepper, cayenne pepper, paprika, garlic powder and onion powder in a small bowl.
Cut the chicken breasts into bite-size pieces. Use about one-third seasoning blend to coat the chicken pieces. In another bowl, sprinkle another one-third of the spice blend over the shrimp.
Start the pasta cooking according to package directions. While the fettucine cooks, heat 1 tablespoon of the olive oil in a large frying pan or skillet over high heat. When the oil is hot, saute the chicken in the pan for about 2 minutes or until chicken starts to turn brown.
Add the shrimp to the pan with the chicken and cook for another 2 minutes, stirring occasionally. When the chicken and shrimp have been seared, pour the contents of the pan onto a plate or into a bowl (separate the chicken and shrimp as they will be added back to the pan at different stages).
Put the pan back over the high heat and add the remaining 1 tablespoon of oil to the pan. Add the kielbasa, tomato, pepper, and onion. Sprinkle on the remaining spice blend and sauté' for about 5 minutes or until veggies begin to soften and turn dark brown.
Add the chicken back to the skillet and pour 3/4 cup of the chicken broth in the pan. Cook over high heat until the broth has been reduced to just about nothing. Add the remaining 3/4 cup of broth and shrimp to the pan, stirring constantly and scraping the blackened bits on the bottom of the pan. Reduce the broth a bit more, then turn the heat down to low.
Stir the wine into the pan and simmer over low heat for 2 more minutes. Drain fettucine and spoon onto plates. Top with jambalaya.