N0040625QS355 SOW (Rev 1)_Redacted.pdf

This Service Order (SOR) 25-006 is a detailed technical specification for a lineshaft bearing inspection for propulsion machinery, categorized as a "Category A" service scheduled for 2025-06-06. The document outlines a comprehensive inspection and maintenance procedure for one lineshaft bearing located in the Machinery Room and Shaft Alley, specifically for a Radius LRZPN 60-553 model bearing.

The inspection requirements include a 5-year detailed examination involving multiple critical steps: temporarily removing bearing covers, measuring bearing clearances and wear, visually inspecting components, hand-stoning mating surfaces, checking external fasteners, inspecting thermometers and oil indicators, and performing operational tests. Key safety precautions are emphasized, such as engaging main engine locking devices, following high voltage electrical safety protocols, and ensuring all work is performed by trained original equipment manufacturer (OEM) authorized technical service personnel. The contractor must coordinate inspections with the ABS Surveyor, OMT Representative, and Chief Engineer, and submit detailed condition reports documenting the bearing's status, clearances, and any deficiencies discovered during the process.