Change in Inspection Method Due to Amendment of Rules for Propeller Shaft Surveys Full-text PDF:TEC- 1277 (13948kb) Contact:Survey Department Issued:1 Sep 2022 Due to the amendment of requirements regarding propeller shaft surveys (scheduled to take into effect on 1 October 2022 (hereinafter, referred to as "effective date")), partial surveys or simplified partial surveys may now be performed consecutively instead of the propeller shaft ordinary surveys required every five years since the last propeller shaft ordinary survey after the effective date. Thus, if the results of such partial surveys are favorable, the maximum interval between propeller shaft withdrawal will be now 15 years. (However, seawater lubricated systems are excluded, and ships affixed with PSCM notation remain as before.) Furthermore, in addition to 3-month and 1-year extensions, 2.5-year extensions may now be requested for survey due dates (