PENANGANAN DAN ANALISA HIGH OIL CONSUMPTION PADA AUXILIARY POWER UNIT PESAWAT BOEING 737-800 NEXT GENERATION DI HANGAR 4 PT.GMF AEROASIA

KUSUMA DHALIMARTA, RYAN (2022) PENANGANAN DAN ANALISA HIGH OIL CONSUMPTION PADA AUXILIARY POWER UNIT PESAWAT BOEING 737-800 NEXT GENERATION DI HANGAR 4 PT.GMF AEROASIA. Tugas Akhir thesis, Institut Teknologi Dirgantara Adisutjipto.

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Abstract

The APU is an important part of the Boeing 737-800NG aircraft which is located at the tail of the aircraft and functions as a generator of electricity and pneumatic power (compressed air) for starting the engine when the aircraft is on the ground. Examination of the APU is carried out during scheduled maintenance in hangar 4 PT. GMF AeroAsia. When the aircraft performs engine run up, a message fail occurs in the form of a P5 MAINT light indicator on the auxiliary power unit, and it is seen that there is oil dripping from the aft drain section of the APU. The method used in solving the high oil consumption problem is a qualitative method by performing Troubleshooting of high oil consumption which refers to the Fault isolation manual (FIM) 49-95 task 801. The cause of the APU high consumption oil is an increase in oil consumption that exceeds the limit allowed on the AMM, the increase in oil consumption occurs due to damage to the Oil cooler component. In the Oil Cooler component there is a problem of damage to both the packing on the supply and return tube. The occurrence of damage to the packing can be caused by a long period of use which causes a decrease in the strength of the packing to withstand leakage at the tube connection.

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