India’s aviation safety regulator has asked Tata Group -led Air India to reinspect the emergency power source system RAT (Ram Air Turbine) for stowage in all aircraft whose power conditioning module (PCM) was replaced in the recent past.

On a technical basis, a RAT is an emergency power source that gets deployed automatically during critical system failures. It is designed to provide essential hydraulic and electrical power when an aircraft experiences a major loss of onboard power.

Accordingly, the Directorate General of Civil Aviation (DGCA) advisory read: “Air India has been advised to review the work package of ‘D’ Check for the actions required in view of change of PCM module, for any discrepancy.”

The advisory comes after an incident took place on October 4, 2025, when Fligh

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