Ship Inspection Report (SIRE) Programme
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MSC. 128 (75) and there are ships which have already installed the equipment on a voluntary basis. The<br />
BNWAS should be used at all times except when the ship is alongside, in Dry-dock or at a repair facility.<br />
4.13 Are the Standard Magnetic compass and Gyro compasses operational, properly maintained<br />
and adjusted?<br />
Note: The magnetic compass must be in good working order and the ship’s heading clearly displayed at<br />
the main steering position. The binnacle lights must be operational. The compass must be provided with an<br />
azimuth mirror or other means to take bearings. The compass shall be adjusted if a period of two years has<br />
elapsed since the last adjustment and a record of compass deviations has not been maintained, or the<br />
recorded deviations are excessive or when the compass shows physical defects.<br />
Masters and Officers should be aware that portable electrical equipment (e.g. radios and tape recorders)<br />
or items made of steel can affect the performance of a compass and must ensure that such items are<br />
kept away from the compass position. A compass deviation card should be prepared each time the<br />
compass is adjusted. Separate deviation cards should be prepared for the standard compass and the<br />
transmitting magnetic compass repeater, if fitted (Not required for TMC if attached to the Magnetic<br />
Compass). The gyro compass (or compasses) should be checked to ensure that the speed and latitude<br />
corrections are properly applied. Gyro maintenance records should be reviewed to confirm that the<br />
gyro(s) are operating satisfactorily. This can be done either manually or by automatic input from GPS/Logs.<br />
Each of the gyro repeaters, including those that may be fitted in the emergency steering position and the<br />
engine control room must be synchronised. Where two gyros are fitted, a change-over device must be<br />
fitted and change-over procedures must be posted.<br />
4.14 Are auto to manual steering changeover procedures clearly identified?<br />
Simple operating instructions with a block diagram showing the change-over procedures for remote<br />
control systems and steering gear power units shall be permanently displayed on the navigation bridge<br />
and in the steering gear compartment.<br />
(SOLAS V/26.3.1)<br />
4.15 Are auto to manual steering changeover recorded during periods of river transits and when<br />
navigating through restricted Waters?<br />
Note: Times and locations of engaging hand steering should be recorded in the deck log book or bell<br />
book (electronic means of recording are also acceptable)<br />
4.16 Are regular gyro and magnetic compass errors being taken and are they being recorded?<br />
Magnetic and gyro compass errors should be checked and recorded each watch, where possible, using<br />
either azimuth or transit bearings. A record of magnetic and gyro compass courses to steer and compass<br />
errors should be maintained and kept available to the helmsman. (BPG 4.6.3)<br />
Note: The error of the gyro should be determined by external observations – celestial bearings, transits etc.<br />
and the gyro and magnetic compass headings then compared to determine the magnetic compass<br />
error. Where a gyro repeater is used to take a bearing, an accurate comparison between the repeater<br />
and the master gyro should be made. When compass errors cannot be taken it is not necessary to state<br />
this in the compass error book.<br />
The previous record completed by a qualified compass adjuster should be retained to prove that<br />
adjustment has not been required in the intervening period. A comparison between the magnetic and<br />
gyro headings should be made at each substantial course alteration and once each watch. Details must<br />
be recorded in the Deck Log Book. Some Administrations require compass errors to be recorded in the<br />
Deck Log Book rather than a separate Compass Error Book.<br />
The Magnetic compass errors recorded in the compass error book should broadly agree with the deviation<br />
card. The Magnetic compass deviation may be excessive at the time of inspection due to the presence<br />
of external metal structures such as loading arms, gangway towers etc. .<br />
4.17 Is there a documented procedure for the operation of the VDR and are the Deck Officers<br />
familiar with procedure to retain the VDR data in the event of an incident?<br />
Note: In the event of an incident the data retained in the VDR can be invaluable in accident<br />
investigations, ship's crew should be aware of how to retain this data and prevent it from being over<br />
written. The OCIMF information paper "Recommendations on the Proactive Use of Voyage Data Recorder<br />
Information" provides further information on the use of VDRs.<br />
© Copyright OCIMF 2014. All rights reserved.<br />
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