Sec. 121.403. APPEAL FROM TRIAL COURT. An appeal from an action under Section 121.402: (1) is at once returnable to the appellate court; and (2) has precedence in the appellate court over each other pending cause of a different character. Acts 1997, 75th Leg., ch. 166, Sec. 1, eff. Sept. 1, 1997. SUBCHAPTER I. SOUR GAS PIPELINE FACILITIES