Maintenance safety requirements Flashcards
What are the general safety requirements before performing maintenance on gas turbine engine starting systems?
Always refer to the relevant engine maintenance manual, ensure circuit breaker switches are open/off and tagged, observe engine intake and exhaust hazard zones, and use correct PPE when handling hot parts.
Why is it important to observe engine intake and exhaust hazard zones during starting system maintenance?
Engine intake and exhaust zones can pose significant hazards due to strong airflow, potential debris, or hot gases, which can cause serious injury if not avoided during maintenance.
What are the dangers associated with the engine ignition system?
The engine ignition system uses very high voltages, and touching ignition units without proper safety precautions can result in serious injury or death.
What should be done to ensure no residual electricity is left in the ignition units before touching them?
Wait at least three minutes after opening the applicable circuit breakers to ensure no electricity remains in the ignition units.
What PPE should be used when handling hot parts during starting system maintenance?
The correct hand gloves should be used to protect against burns and injuries when handling hot parts during starting system maintenance.
What is the correct procedure for handling igniter maintenance to ensure safety?
Disconnect the igniter lead coupling nuts at the exciter end first, use insulated tools, avoid touching coupling nuts or connectors with bare hands, and follow all manufacturer’s procedures.
Why is it necessary to follow the manufacturer’s instructions when working on engine ignition systems?
Following the manufacturer’s instructions is crucial to prevent accidental discharge of residual high voltage and to ensure safe handling of ignition system components.
What tagging procedure should be followed before starting work on the starting system?
Ensure all relevant circuit breaker switches are open/off and tagged to indicate that they should not be operated while maintenance is being performed.
What is the most likely way for an accidental discharge to occur during igniter maintenance?
An accidental discharge is most likely to occur by touching the igniter without following proper safety procedures.
Why should insulated tools be used when working on engine ignition systems?
Insulated tools prevent the risk of electric shock or accidental discharge of residual high voltage when working on engine ignition systems.
