India’s naval and coast guard fleets are waiting for the clearance to resume operations of the ALH Dhruv helicopters, which were grounded following recent technical concerns. According to officials familiar with the matter, the core issue lies in a critical component of the rotor system, and flights will restart only after this part is fully inspected, repaired, or replaced.
What Went Wrong?
The precautionary grounding came after vibration-related alerts and safety warnings were reported in a few helicopters. Though no major accident occurred, the aviation authorities and the forces opted for a safety-first approach, halting operations until engineers could study the problem in detail.
The investigations identified the need to check and fix a key rotor-head component responsible for maintaining stability and smooth rotation. Any flaw in this part can affect balance, performance, and safety.
What Is Being Done?
The manufacturer, along with defence aviation specialists, has started:
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Detailed inspections of the rotor system
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Replacement or repair of the affected parts
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Stress tests and ground runs
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Enhanced quality checks for all units in service
Only after all machines pass the technical evaluation will the flight ban be lifted.
Impact on Navy & Coast Guard
The ALH Dhruv is crucial for coastal surveillance, search-and-rescue, medical evacuation, and transport missions. Its temporary grounding has reduced operational flexibility, especially in regions dependent on helicopters for rapid response.
However, officials emphasise that the halt is temporary and precautionary, and that flight safety remains the top priority.
What Happens Next?
Once the component fix is certified, each Dhruv will undergo:
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Ground testing
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Test flights
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Final operational clearance
Only after these steps will the helicopters return to regular missions.

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