As we have already informed you by Technical Information No. 414, all ships the keels of which were laid or which were at a similar stage of construction before 1 July 1998 of 500 tons gross tonnage and upward and which are engaged in international voyage shall comply with the following requirements by 1 July 2003 according to the 74 SOLAS 94 Amendment Chapter II-2 Regulation 15.
In this respect, we have revised the description of Technical Information No. 414 at this time as follows. Technical Information No. 414 is cancelled accordingly.


1. High pressure fuel oil injection piping.
(1) All external high pressure fuel delivery lines between the high pressure fuel pumps and fuel injectors are to be protected with a jacketed piping system capable of containing fuel from a high pressure line failure. The jacketed piping system is to include a means for collection of leakage.
(2) Arrangements are to be provided for alarm to be given of a fuel line failure. Alarm systems are to be provided with visual and audible alarm at monitoring station or control station for main engine. But if it is difficult to provide alarm systems at monitoring station or control station for main engine, providing alarm systems at local station in engine room is accepted. M0-ships are to be provided for alarm systems in accordance with the requirement of the "Rules for Automatic and Remote Control Systems".
(3) Diesel engines for life boats and the following diesel engines are not required to comply with this regulation.
(I) having a maximum continuous out put 375 KW or less and,
(ii) having fuel injection pumps serving more than one injector and,
(iii) provided a suitable enclosure for the fuel injection piping system.

2. Flange connections and mechanical joints (threaded pipe joints, compression joints, etc.) in fuel oil piping are to be provided with suitable means mentioned below to prevent oil from spraying except where deemed unnecessary by the Society.
(a) Anti-splashing tape (FN tape)
(b) Metal flange cover designed in accordance with IMO MSC Circ. 647 (See attachment)
(c) Effective insulation in way of the connections or joints of fuel oil pipes in accordance with JIS F 7008-2001 or equivalent (See attachment)
(d) Means approved by the Society suitable to prevent oil spray

(To be continued)


The phrase "where deemed unnecessary by the Society" means the following cases where the possibility of leak and spray of oil onto highly heated surface is less:
(1) Pipings of flammable oil located below the lowest engine room floor.
(2) Pipings that have little possibility of oil spraying out of, even if damaged at the connections and joints, due to low design pressure. (e.g. Over flow line, Drain line, etc.)
(3) Pipings that contain no fuel oil inside under normal conditions, and used occasionally and intentionally for short times. (e.g. FO filling line)

Above items (2) and (3) are applicable only for piping of Group 3 and only when there is no sources of ignition directly under the connections or joints.

3. All surfaces of machinery installations with high temperatures above 220°C are to be water- cooled or effectively insulated with non-combustible material. Where the insulation is oil absorbent or penetrative material, the insulation is to be encased in steel sheathing or equivalent material.


You are requested to conduct necessary working for the vessel by 1 July 2003 in order to comply with the requirements of the 74 SOLAS