Liquefied Gas Carrier

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Loss of power supplies - emergency procedure for gas carriers

Loss of Power Supplies (including Emergency Power Supply)

Stop cargo operations. ESDS will be activated.

Inform the Master

Advise Terminal

Disconnect loading arms, if necessary. PERC. Consider - there are no means of controlling the moorings and, therefore, the vessel may move.

Monitor Tank pressure, consider - the possibility of venting

Evaluate situation (keeping in mind weather forecast for next few hours, proximity to shore) in order to determine the need for external assistance (Tugs).

Consider - leaving the berth

Consider - anchoring (inside port limits we will most probably be requested to have tug stand-by)

Hoist/exhibit signals: NUC (Not Under Command)

Use emergency radio to broadcast a warning to ships in the vicinity. Advise local Authorities (for example, VTIS if in Singapore strait)

Consider - emergency towing, make it ready



When Power has been Re-stored

Cancel warning to ships in the vicinity
Check gyro and steering device
Check navigation equipment
Check machinery
Check cargo equipment
Check all alarms
When power is restored, cancel the broadcast warning
Cancel external assistance if required (tugs)
Advise Terminal
Advise all parties concerned




analyzing gas cargo equipment
Fig:Analyzing and reporting from control room the high level alarm







Related Information:

  1. Preventive measures against spillage of low temperature cargo in Liquefied gas carrier


  2. Low Temperature Effects in gas carrier - Causes of Brittle Fracture & contermeasures


  3. How to cool down cargo system - a brief guide to Liquefied gas carrier


  4. Low Cargo Temperature Effects -What is rollover of Liquefied gas cargo ?


  5. Transporting economically viable compressed gas liquids from remote fields


  6. Increased Cargo Capacity for LNG ships & Advantages of the dual fuel diesel electric propulsion


Cargo tank ruptures due to increased pressure - emergency procedure for gas carriers

Risk and hazards of Equipment failure

Loss of Instrumentation during Unloading Operations - Recommended actions by Liquefied Gas carriers

Risk and hazards of Nitrogen Loss

Gas carriers Loss of Instrumentation during Loading Operations

Gas carriers Structural Damage due to Incorrect Loading/Unloading Sequence

Encountering High Winds and/or Waves - countermeasures

Safety guideline for changing previous cargo



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