ANALISIS MENURUNNYA PRODUKSI UDARA BERTEKANAN PADA MAIN AIR COMPRESSOR GUNA MENUNJANG KELANCARAN OLAH GERAK DI KAPAL MT.GRIYA CIREBON

Abstract

Albaradey Lubis, Muhammad. 564211208. " Analysis of the Decreased Production of Compressed Air in the Main Air Compressor to Support Smooth Maneuvering Operations on Board MT. Griya Cirebon " This study aims to analyze the causes of the decreased production of compressed air by the main air compressor on board MT. Griya Cirebon, which significantly affects the ship’s maneuvering operations. The main issue identified is the extended duration required to fill the air bottles, which increased from the normal ±10 minutes to 15–20 minutes. This research adopts a qualitative descriptive approach through direct observation, documentation study, and interviews with engine room personnel during the sea training period. The inspection revealed component damage, including a broken piston ring and carbon deposits on the suction and delivery valves in the high-pressure section. Analysis was conducted using a fishbone diagram and problem prioritization through the USG method (Urgency, Seriousness, Growth). Key contributing factors include the lack of scheduled maintenance in accordance with the manual, the use of nonoriginal spare parts, and insufficient familiarization of watchkeeping personnel with compressor inspection procedures. Proposed solutions include aligning the Planned Maintenance System (PMS) with manufacturer instructions, improving crew training, and ensuring the use of genuine spare parts. This research is expected to serve as a reference for ship engineers in maintaining the reliability of compressed air systems to ensure optimal performance of the main engine during maneuvering.