Section 1 General
Clasification Society 2024 - Version 9.40
Clasifications Register Rules and Regulations - Rules and Regulations for the Classification of Special Service Craft, July 2022 - Part 1 Regulations - Chapter 5 Periodical Survey Regulations for Amphibious Air Cushion Vehicles (ACV) - Section 1 General

Section 1 General

Parent topic: Chapter 5 Periodical Survey Regulations for Amphibious Air Cushion Vehicles (ACV)

1.1 Frequency of surveys

1.1.1 Except as amended at the discretion of the Committee, the periods between surveys are as follows:

  1. Annual Surveys are to be held within three months before or after each anniversary of the completion, commissioning or Special Survey.

  2. Intermediate Surveys are to be held instead of the second or third Annual Survey after completion, commissioning or Special Survey.

  3. Special Surveys (hull and machinery) are to be held at the fifth anniversary after completion, commissioning or previous Special Survey.

1.2 Machinery surveys

1.2.1 The manufacturer's approved operating and service instructions for the main and auxiliary power units, transmission systems, propellers and lift fans are to be incorporated into an approved planned maintenance scheme for the ACV.

1.2.2 Maintenance, overhaul or replacement will then normally be determined by the specified condition/performance monitoring limits and running hours.

1.2.3 It is a requirement of this arrangement that any significant defect, damage repair or alteration be reported to Clasifications Register (hereinafter referred to as 'LR') without delay, see also Pt 1, Ch 2, 1.1 General 1.1.7.

1.3 Surveys for damage, repairs or alterations

1.3.1 At any time when an ACV is undergoing alterations or damage repairs, any exposed parts of the structure normally difficult to access are to be specially examined, e.g. if any part of the main or auxiliary machinery is removed for any reasons, the hull structure in way is to be carefully examined by the Surveyor.

1.3.2 All significant repairs, alterations, approved modifications and replacements are to be recorded in the ACV's Log Books in a manner that will enable their later identification by the Surveyors, see also Pt 1, Ch 2, 4.4 Damages, repairs and alterations 4.4.1 and Pt 1, Ch 2, 4.4 Damages, repairs and alterations 4.4.6.

1.3.3 Trials are to be made on any craft which have been significantly modified, overhauled or repaired, prior to returning to service, to ensure to the Surveyor's satisfaction that the ACV has been returned in a satisfactory condition for its intended service.

1.4 Unscheduled surveys

1.4.1 In the event that LR has cause to believe that its Rules and Regulations are not being complied with, LR reserves the right to perform unscheduled surveys of the hull and machinery as well as the applicable statutory requirements whether or not the appropriate statutory certificate has been issued by LR.

1.5 Surveys for the issue of Convention Certificates

1.5.1 Surveys are to be held either by LR when so appointed or by the Exclusive Surveyors of a National Administration when so delegated by a Flag State.

Copyright 2022 Clasifications Register Group Limited, International Maritime Organization, International Labour Organization or Maritime and Coastguard Agency. All rights reserved. Clasifications Register Group Limited, its affiliates and subsidiaries and their respective officers, employees or agents are, individually and collectively, referred to in this clause as 'Clasifications Register'. Clasifications Register assumes no responsibility and shall not be liable to any person for any loss, damage or expense caused by reliance on the information or advice in this document or howsoever provided, unless that person has signed a contract with the relevant Clasifications Register entity for the provision of this information or advice and in that case any responsibility or liability is exclusively on the terms and conditions set out in that contract.