[Code of Federal Regulations]

[Title 46, Volume 4]

[Revised as of October 1, 2006]

From the U.S. Government Printing Office via GPO Access

[CITE: 46CFR109.121]



[Page 162-163]

 

                            TITLE 46_SHIPPING



                  (This book contains parts 90 to 139)

 

   CHAPTER I--COAST GUARD, DEPARTMENT OF HOMELAND SECURITY (CONTINUED)

 

PART 109_OPERATIONS--Table of Contents

 

                            Subpart A_General

 

Sec.  109.121  Operating manual.



    (a) Each unit must have on board an operating manual approved by the 

Coast Guard as meeting the requirements of this section.

    (b) The operating manual must be available to, and written in a 

manner that is easily understood by, the unit's operating personnel and 

include the following:

    (1) A table of contents and general index.

    (2) A general description of the unit, including major dimensions, 

tonnages, dry bulk capacities, damage stability standard to which 

designed, hook load capacity, rotary table capacity, set back load 

capacity, drilling derrick capacity, and the identification, the maximum 

deadweight in pounds and kilograms, and the rotor size in feet and 

meters of the helicopter used for the design of the helicopter deck.

    (3) Limiting design data for each mode of operation, including 

draft, air gap, wave height, wave period, wind, current, temperature, 

and other environmental factors.

    (4) Instructions on the use of the stability data.

    (5) Lightweight data with a comprehensive listing of the inclusions 

and exclusions of semi-permanent equipment, together with guidance for 

the routine recording of lightweight alterations.

    (6) Information identifying the type, location, and quantities of 

permanent ballast.

    (7) Hydrostatic curves or tables.

    (8) The maximum allowable deck loadings either listed or shown on a 

plan.

    (9) A capacity plan showing the capacities and the vertical, 

longitudinal, and transverse centers of gravity of tanks and bulk 

material stowage spaces.

    (10) Tank sounding tables or curves showing capacities, the 

vertical, longitudinal, and transverse centers of gravity in graduated 

intervals, and the free surface data of each tank.



[[Page 163]]



    (11) Stability information setting forth the maximum allowable 

height of the center of gravity in relation to draft data, displacement, 

and other applicable parameters unique to the design of the unit to 

determine compliance with the intact and damage stability criteria.

    (12) Examples of loading conditions for each mode of operation and 

instructions for developing other acceptable loading conditions.

    (13) Information concerning the use of any special crossflooding 

fitting for each operating condition which, if damage occurs, may 

require crossflooding for survival (surface units only) and the location 

of any valve that may require closure to prevent progressive flooding 

(all units).

    (14) Guidance for preparing the unit for the passage of a severe 

storm and the specific actions and approximate length of time to 

complete them or to attain a designated level of preparedness.

    (15) Guidance for operating the unit while changing its mode of 

operation and for preparing the unit to make a move and, for self-

elevating units in the transit mode, information for preparing the unit 

to avoid structural damage during heavy weather, including the 

positioning and securing of legs, cantilever structures, and heavy cargo 

or large equipment which might shift position.

    (16) A description of any inherent operational limitations for each 

mode of operation and for each change in mode of operation.

    (17) Guidance for the person in charge to determine the cause of 

unexpected list and trim before taking corrective action.

    (18) For column stabilized units, a description, a schematic 

diagram, and guidance for the operation of the ballast system and of the 

alternate means of ballast system operation, together with a description 

of their limitations, such as pump capacities at various angles of heel 

and trim.

    (19) A description, a schematic diagram, and guidance for the 

operation of the bilge system and of the alternate means of bilge system 

operation, together with a description of their limitations, such as 

spaces not connected to the bilge system.

    (20) General arrangement plans showing the location of: Watertight 

and weathertight compartments, and openings in the hull and structure; 

vents, closures, and mechanical, ventilating, and electrical emergency 

shutdowns; flooding alarms and fire and gas detectors; and access to 

different compartments and decks.

    (21) A list of emergency shutdowns and guidance on restarting all 

mechanical, ventilating, and electrical equipment after activation of 

the emergency shutdowns.

    (22) Procedures for evacuating personnel from the unit.

    (23) A plan showing the hazardous locations described in Sec.  

111.105-33 of this chapter.

    (24) A schematic diagram of the emergency power system.



(Approved by the Office of Management and Budget under control number 

1625-0038)



[CGD 83-071, 52 FR 6979, Mar. 6, 1987; 52 FR 9383, Mar. 24, 1987, as 

amended by CGD 95-028, 62 FR 51208, Sept. 30, 1997; USCG-2006-25697, 71 

FR 55746, Sept. 25, 2006]