SOLAS公約及修正案對救生艇筏降落裝置有明確要求，除了自由降落救生艇的次要降落設(shè)備以外,降落裝置要滿足以下三點(diǎn)：一是可一人操作，二是在甲板某一位置和在艇內(nèi)均可操作，三是在甲板上降落操作時(shí)應(yīng)能始終觀察到救生艇筏的動(dòng)向。其中第二點(diǎn)因公約中文翻譯與英文版本不一致問題，曾經(jīng)造成一些困擾，即艇內(nèi)和甲板均應(yīng)設(shè)置快速降落裝置，而不是設(shè)置其中之一。本例中，艇內(nèi)釋放鋼絲在操作時(shí)斷裂脫落，將導(dǎo)致救生艇無法在艇內(nèi)進(jìn)行降落釋放，因此船舶被滯留。在PSC/FSC檢查實(shí)踐中，救生艇筏降落裝置還存在其他一些缺陷，如：釋放鋼絲未穿入救生艇內(nèi)、釋放鋼絲被打死結(jié)無法穿入救生艇內(nèi)、在艇內(nèi)和/或甲板上的降落裝置不能降落救生艇、在甲板上的快速釋放鋼絲在降落操作過程中斷裂、在甲板上進(jìn)行降落救生艇操作時(shí)無法始終觀察救生艇的動(dòng)向，其中后面三項(xiàng)缺陷將可能導(dǎo)致船舶被滯留。

The main steering gear and rudder stock shall be:

  .1 of adequate strength and capable of steering the ship at maximum ahead service speed which shall be demonstrated;

  .2 capable of putting the rudder over from 35° on one side to 35° on the other side with the ship at its deepest seagoing draught and running ahead at maximum ahead service speed and, under the same conditions, from 35° on either side to 30° on the other side in not more than 28 s;

  .3 operated by power where necessary to meet the requirements of paragraph 3.2 and in any case when the Administration requires a rudder stock of over 120 mm diameter in way of the tiller, excluding strengthening for navigation in ice; and

  .4 so designed that they will not be damaged at maximum astern speed; however, this design requirement need not be proved by trials at maximum astern speed and maximum rudder angle.

1 An International Air Pollution Prevention Certificate shall be issued for a period specified by the Administration, which shall not exceed five years.

2 Notwithstanding the requirements of paragraph 1 of this regulation:

 .1 when the renewal survey is completed within three months before the expiry date of the existing certificate, the new certificate shall be valid from the date of completion of the renewal survey to a date not exceeding five years from the date of expiry of the existing certificate;

 .2 when the renewal survey is completed after the expiry date of the existing certificate, the new certificate shall be valid from the date of completion of the renewal survey to a date not exceeding five years from the date of expiry of the existing certificate; and

.3 when the renewal survey is completed more than three months before the expiry date of the existing certificate, the new certificate shall be valid from the date of completion of the renewal survey to a date not exceeding five years from the date of completion of the renewal survey.