Analysis Of The Causes Of Suboptimal Steering Gear Performance Based On Maintenance Factors And The Quality Of Spare Parts On MV. Mulianim
DOI:
https://doi.org/10.31004/jestm.v6i3.484Keywords:
Steering Steering Gear Performance, Planned Maintenance System (PMS), Hydraulic Pressure, Spare Parts Logistics, Qualitative Case StudyAbstract
The operational reliability of a ship's steering gear system is vital for navigation safety and vessel maneuverability, as regulated by International Maritime Standards (SOLAS). However, performance degradation often occurs due to inadequate maintenance practices and spare part constraints. This study aims to analyze the root causes of suboptimal steering gear performance on MV. Mulianim using a qualitative case study approach. Data were gathered through direct field observations, semi-structured interviews with chief and engine officers, and documentation audits (Engine Log Book and PMS records) over a 12-month period. Data validity was verified through source triangulation and analyzed using Miles and Huberman’s interactive model combined with Cause-and-Effect Analysis. The results revealed that steering gear hydraulic pressure dropped below the operational baseline (85–90 bar vs. standard 100 bar) due to high fluid turbidity, degraded viscosity, and internal bypasses. This condition was directly triggered by a 26.7% delay in Planned Maintenance System (PMS) tasks and severe spare part stockouts (25% critical spares unavailable). To prevent navigational hazards, strict adherence to PMS schedules and optimization of the spare part procurement pipeline are strongly recommended.
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