CS-E 830 Maximum Engine Over-speed

• ED Decision 2007/015/R found in: CS-E Amdt 5 - Engines (Dec 2018)

CS-E 830 Maximum Engine Over-speed ED Decision 2007/015/R (a) If approval of a Maximum Engine Over-speed is sought for a rotating system of the Engine, a test must be undertaken on a complete Engine. Alternatively, test evidence from an Engine of similar design may be provided. (b) The test conditions must be as follows: (1) A total of 15 minutes run at the Maximum Engine Over-speed to be approved. This may be done in separate runs, each being of at least 2.5 minutes duration. (2) A turbine-entry gas temperature equal to the maximum steady state temperature to be approved for use during periods longer than 20 seconds and not associated with 30-Second or 2-Minute OEI Power Ratings. However, for the shaft system to be approved, if the maximum over-speed cannot occur at the maximum turbine-entry temperature, the highest temperature which could occur at the conditions of Maximum Engine Over-speed must be used. (3) The declared maximum operating oil temperature. (c) On conclusion of such tests, the stripped condition of the Engine must be satisfactory for continued running. (See [AMC E 830(c)](#_DxCrossRefBm1371447824)) (d) The test may be run, if desired, as part of the endurance test of [CS-E 740](#_DxCrossRefBm1371447586) provided the conditions of CS-E 830(b) are satisfied. [Amdt No: E/1]