Section 7 Survey requirements

7.1.1 The Initial Survey shall comprise sea trial or initial in-service testing, reporting and assessment against the criteria set out in these Rules.

7.1.2 The sea trial or initial in-service testing requirements are set out in Vol 3, Pt 2, Ch 7, 4 Testing, and are to be reported in accordance with Vol 3, Pt 2, Ch 7, 5 Survey reporting and evaluated against the requirements of Vol 3, Pt 2, Ch 7, 2 Noise and Vol 3, Pt 2, Ch 7, 3 Vibration.

7.2.1 Arrangements are to be agreed between LR and the Owner to record observations/complaints of excessive noise and vibration that have been such as to disturb the comfort of embarked personnel and crew. The records of the observations are to be made available to the attending LR Surveyor at each Annual Survey.

7.2.2 Where the observations indicate that the noise and/or vibration levels may exceed the criteria relating to the Class Notation requirements and those measured at the Initial Survey, a measurement programme is to be agreed between the Owner and LR and measurements taken in accordance with these Rules.

7.2.3 Notwithstanding the above, at each Renewal Survey following the Initial Survey, measurements of noise and vibration will be required at a minimum of 10 per cent of the locations specified for the Initial Survey. The locations are to be submitted to LR for agreement, prior to commencement of the Renewal Survey.

7.3.1 A Renewal Survey may be required following modifications, alterations or repairs including replacement of major machinery items. It is the responsibility of the Owner to advise LR of such modifications.