ABSTRACT
A combustor casing can be considered to be a pressure vessel designed to withstand hot gases at substantial pressures up to 30 bars. Hydrostatic testing is the most common method employed for testing aero engine pressurising components. Using this test helps to maintain safety standards and the durability of the component over time. This chapter presents the results of the proof pressure test carried out on the modified combustor casing of an aero engine to indicate its safety so as to obtain airworthiness certification of the aero engine. The proof strength of the combustor casing directly affects the safety of the engine, as well as the aircraft. Strain gauge rosettes are mounted on the component at critical locations identified by analysis. Pressure values and the strain values are monitored during the test. Fluorescent particle inspection (FPI), radiography at the weld locations, and a dimensional inspection were carried out before starting the test and at the end of the test.
