TROUBLESHOOTING LOW PRESSURE TURBINE (LPT) SHAFT PADA ENGINE CFM56-7B

AULIYANTO, ARI (2019) TROUBLESHOOTING LOW PRESSURE TURBINE (LPT) SHAFT PADA ENGINE CFM56-7B. Tugas Akhir thesis, Institut Teknologi Dirgantara Adisutjipto.

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Abstract

Low pressure turbine shaft is very important for the engine as a link between the booster shaft and LPT rotor which is useful for re-sucking air into the engine through the inlet rotated through the turbine which utilizes hot air resulting from combustion from the Combustion chamber which is changed by the turbine, and supplying rear support of high pressure turbine through the No. 4 roller bearing, as a buffer against the axial load generated by the engine. Engine that has reached its overhaul time will do maintenance that will check all the components that are on the engine and to see the condition of the engine it is necessary to conduct a Boroscope inspection that can determine the condition of the components that are in the engine. After inspection through Borocope it was found that the damage contained in the LPT shaft had exceeded the tolerance limit, which caused components not to be reused. Maintenance done is condition monitoring by replacing LPT shaft components with new components.

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