The Heart of the MD520N: Keeping a Helicopter in Peak Condition

The MD520N isn’t just another helicopter it’s a workhorse with a reputation for agility, power, and its clever NOTAR® (No Tail Rotor) system. Whether it’s lifting heavy equipment, navigating tricky terrain, or just getting the job done efficiently, this machine is a favourite. But like any high-performing piece of equipment, it needs some TLC to stay in top form.

At Central Heliwork Ltd, we rely on our MD520N daily, so keeping it in prime condition isn’t optional it’s essential. Here’s a rundown of how we keep it ready for action.

Why Maintenance Is A Big Deal

Helicopters like the MD520N aren’t your average machines they’re precision tools that face tough conditions every time they fly. Routine maintenance keeps things running smoothly by:

• Boosting Safety: A well-maintained helicopter is a safe one. Regular checks help catch issues before they become problems.

• Ensuring Performance: The MD520N is known for its reliability, but proper care keeps it performing like it’s fresh off the production line.

• Extending Lifespan: Regular upkeep doesn’t just prevent downtime it helps the aircraft last longer, saving time and money in the long run.

Here’s the thing about helicopters: every part has a shelf life, and it’s measured in flight hours. From the engine to the rotor blades and even the NOTAR® system, each component is logged to track how long it’s been in use.

When a part hits its time limit, we replace it even if it still looks good. Why? Because it’s not just about how it looks; it’s about reliability. This proactive approach keeps the MD520N safe and ready for whatever comes next.

Key Areas We Focus On For Maintenance:

1)        NOTAR® System

• Check ducts and nozzles for wear or misalignment.

• Make sure airflow is calibrated for peak performance.

2)        Engine

• Keep the Rolls-Royce 250-C20 engine running smoothly with regular oil changes.

• Inspect turbines and compressors to avoid overheating or inefficiency.

3)        Rotors

• Balance the main rotor blades to prevent vibrations.

• Inspect and lubricate moving parts to reduce wear.

4)        Avionics

• Test navigation and communication systems regularly.

• Calibrate instruments to keep everything accurate.

5)        Airframe

• Look for cracks, corrosion, or stress on the fuselage.

• Check landing gear for damage after every job.

Paul Inspecting the Rotor Blades Before Taking off, Ensuring Everything is up to Scratch

At the end of the day, the MD520N isn’t just a helicopter it’s the backbone of what we do. Keeping it in top shape ensures it’s ready to handle whatever challenges come its way, whether that’s lifting equipment, drying cherries, or handling other tough jobs.

Want to know more about how we keep our MD520N flying high? Reach out we’re always happy to chat about the ins and outs of helicopter maintenance! 

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