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This report from March 2013 delves into the process of identifying and assessing various types of damage on a vessel, including ruptured pipes, flooding issues, structural damage, and electrical damage. It provides detailed descriptions of the damages observed, such as crack lengths, water rising rates, and potential source identifications, to aid in the investigative process. The report emphasizes the importance of examining water color, mist presence, and other indicators to determine the type and extent of each damage. Recommendations are included for steps to take when faced with different types of vessel damage during inspections or emergencies.
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Investigator Casualty Guide Identifying & Assessing Damage “Looking Deeper” March 2013
Rupture 2 1 3 REPORT: Ruptured pipe, unknown type, appox 3 inches long, ¼ inch wide, Frame ___, STBD/PORT side, ___ feet above deck or from OVHD. Water on deck ___ feet ___ inches, rising 2 inches every 15 minutes • Rupture piping for unknown system, approximately 2 inch pipe, fresh water of unknown type. • Water color helps identify • Mist in air may have chlorine smell • Crack in pipe in approximately 3 inches long, smooth, at a angle. • Water rising in space approximately 2 inches per 15 minutes. • Trace pipe, look for pipe marking and valve(s)
Rupture 2 1 3 • Rupture lube oil piping for unknown system, approximately 3 inch pipe, fresh water of unknown type. • Crack in pipe in approximately 4 inches long, smooth, around the pipe. • Lube oil filling 5 gallon bucket every 5 minutes.
Flooding 2 1 3 • Hole below the water line, approximately 6 inches in size, smooth with no protruding metal. • Water rising approximately 1 foot every 15 minutes. • 3 feet of water in space and rising.
Flooding 1 2 3 • Hole at the water line, approximately 8 inches in size, smooth with no protruding metal. • Water rising approximately 1 foot every 30 minutes. • 2 feet of water in space and rising.
Flooding 1 • Flooding from unknown source, water rising at a rate of 1 foot every 15 minutes.
Flooding 1 2 • Progressive flooding from adjoining space through sprung water tight door. • Water rising approximately 1 foot every 15 minutes.
Structural Damage 4 2 6 5 3 1 • Debris blocking access to forward space number------. • Space lighting damaged, light fixtures broken and hanging, wiring damaged and hanging. • Ventilation blown away from over head and damaged, vent opening open into adjoining spaces, watertight integrity compromised. • Hole in overhead, deck plating hanging down, lagging hanging down. • Piping systems damaged, not ruptured. • Some debris blocking full access to space, estimated removal time 6 to 8 hours with 3 to 5 men.
Structural Damage 3 1 4 2 • Debris blocking access to space. • Water Tight Door blown off hinges, space no longer water tight, watertight integrity compromised to progressive flooding space to space. • Ventilation blown away from over head and damaged, vent opening open into adjoining spaces, watertight integrity compromised. • Space is demolished entire space is full of debris estimated removal time 18 to 24 hours with 3 to 5 men.
Structural Damage 1 2 4 3 • Water Tight Door is warped and cannot be opened. • Bulkhead is warped, with tears in metal. • Some debris is blocking passageway, estimated removal time 6 to 8 hours with 3 to 5 men. • Main cable way bracket is blown off bulkhead.
Structural Damage 1 2 3 4 • Deck above space has collapsed, main structural beam is broken. • Support station is broken loose from overhead. • Space wiring is hanging free from wire ways. • Some debris is blocking space, estimated removal time 6 to 8 hours with 3 to 5 men.
Electrical Damage 2 1 • 3 110 volt lighting power cables broken by shock. • Circuit number______ • Circuit number______ • Circuit number______ 2. Warp bulkhead behind wiring .
Electrical Damage 1 • 440 receptacle and power cable are burned.