Where repairs to hull, machinery or equipment, which affect or may affect classification, are going to be carried out by a riding crew during a voyage, they are to be planned in advance. A complete repair procedure including the extent of proposed repair and the need for the surveyor's attendance during the voyage is to be submitted to and agree upon by the Surveyor reasonably in advance, except in extreme emergency circumstances. Failure to notify ClassNK, in advance of the repairs may affect class maintenance of the vessel.

In the following cases, submission of repair procedure may not be needed, but they should be documented in the ship's log and submitted thereafter to the attending Surveyor for use in determining further survey requirements.
(1) Emergency repairs where in any extreme emergency circumstances
(2) Maintenance and overhaul to hull, machinery and equipment in accordance with manufacturer's recommended procedures and established marine practice and which does not require ClassNK's approval
(Any repair as a result of such maintenance and overhauls which affects or may affect classification is to be noted in the ship's log and submitted to the attending Surveyor.)

This ClassNK Technical Information supersedes ClassNK Technical Information No. TEC-0379 dated 17 October 2000.


For any questions about the above, please contact:

NIPPON KAIJI KYOKAI (ClassNK)
Survey Department, Administration Center, Head Office
Address: 4-7 Kioi-cho, Chiyoda-ku, Tokyo 102-8567, Japan
Tel.: +81-3-5226-2027 / 2028
Fax: +81-3-5226-2029
E-mail: This e-mail address is being protected from spambots. You need JavaScript enabled to view it

Attachment:
1. GUIDELINES FOR THE SURVEY OF VOYAGES REPAIRS

Infomarine On-Line Technical Library

File	Description	File size
Voyage Repairs and Maintenance.pdf	Guidlines for Voyage Repairs and Maintenance	20 Kb