On a gas-turbine vessel of at least 1,000 HP at sea, on a simulator, or in a laboratory

Performance requirement

Behavior Standard
The student will: During assessment, the student shall, at a minimum:

Prepare to secure main gas turbine

  • shift controls to main control room
  • disengage main gas turbine engines from reduction gear

Secure main gas turbine engines

  • press Normal Stop Cooldown button
  • monitor engine for proper sequence of operation
  • monitor gas generator speed
  • monitor power turbine inlet temperature

Monitor alarms

Respond to alarms and take corrective actions as necessary


Assessed in EN‑3233 Steam and Gas Turbines.


  1. Table A-III/1 OICEW-A4.3
  2. NVIC 17-14 Task 4.2.C

See the Assessment Guidelines for additional specifications of behavior and standards.