KIRBY 155-01

Manned tank barges and tankships authorized to carry Grade A, B, C, or D liquids at any temperature, or Grade E liquids at elevated temperatures, shall be provided with a combustible gas indicator suitable for determining the presence of explosive concentrations of the cargo carried. Since the vessel cannot be manned throughout the duration of the voyage and during adverse weather conditions, the vessel must have a reliable installed system for detecting explosive atmospheres. Vessels fixed gas detection system has not been calibrated in over 3 years.

A tankship also defined as (oceangoing non-self propelled vessel)in 46 CFR 153.01(b), IAW the stated cites must have two toxic/flammable vapor detectors, at least one of which must be portable, each able to measure vapor concentrations in the range of the time weighted average (TWA) for the cargo. The portable detector may be a direct reading detector tube instrument. If a fixed system is installed at least one portable must be provided. Additionally, vessel must provide a timeline for recalibration of the fixed system or a plan for its removal, and vessel must provide proof that the portable meters on board are capable of detecting toxic/flammable vapors for the cargoes carried. Vessel is restricted from carrying cargoes listed in the vessels CAA and COF that require the toxic/flammable vapor detectors. The above requirement should be rectified no later than 31JAN25 or the CAA and COF will be amended.

Where cargo pump shafts pierce gastight bulkheads, stuffing boxes with readily accessible gastight glands shall be provided. MI observed the gland for the #2 cargo pump shaft bulkhead penetration was failing, and no longer provided a seal. 46 CFR 32.50-1

Except for those spaces listed in paragraphs (e) through (k), a space that has a direct opening to any space listed in paragraphs (e) through (l) must have only the electric installations that are allowed for the space to which it opens. MI observed an open threaded fitting on the bottom of the IG house that did not have a suitable closure to properly isolate the space from the hazardous zone. 46 CFR 32.45-1 46 CFR 111.105-31(m)

The Officer in Charge, Marine Inspections must be notified before - Alterations or modifications that deviate from approved plans. MI observed a battery charger installed in the generator room that was not on the electrical plans. 46 CFR 31.35-1 46 CFR 110.30-7(a)

Each vessel vapor connection flange face must have a permanent stud projecting outward that has a 12.7 millimeter (0.5 inch) diameter and is at least 25.4 millimeters (1 inch) long. It must be located at the top of the flange face, midway between boltholes, and in line with the bolthole pattern. MI observed stud on spool piece for vapor connection was on the bottom of the flange. 46 CFR 39.2001(j)

All materials to be used in any of work specified the various sections of this part shall be free from injurious defects and shall have workmanlike finish. The construction work shall be executed in a workmanlike manner with proper tools or equipment and shall be free from defects which would impair strength or durability. MI observed broken handles on valves for inert gas line on top of the stbd holding tank. 46 CFR 31.30-1(a) 46 CFR 52.01-40

Scantlings, material, and workmanship...shall be at least equivalent to the requirements of the American Bureau of Shipping or other recognized classification society. MI observed gooseneck vents on top of inert gas house had broken closure devices. 46 CFR 32.60-1(a)

Scantlings, material, and workmanship...shall be at least equivalent to the requirements of the American Bureau of Shipping or other recognized classification society. MI observed the doors to multiple house structures were not capable of being completely closed as designed. 46 CFR 32.60-1(a)

Each cable installation must meet Section 25, except 25.11 of IEEE 45-2002. Wire runs should be supported using metal type bands or buckles for support but should not exceed between frames or 610 mm. During inspection found the new Bergan Sensor installation wiring had plastic zip ties bundling the new wiring transiting under the starboard pump room and under the office into the control room. Inspect entire cable runs of the new Bergan Sensors and install proper securing bands accordingly.