Boeing 787 aircraft exempted from using GAGAN compliance till 2025

According to a statement issued by The Union Civil Aviation Ministry, the Boeing 787 aircraft has been exempted from GEO Augmented Navigation (GAGAN) compliance until 2025.

GAGAN is an acronym for GPS Aided GEO Augmented Navigation. It is a Space Based Augmentation System (SBAS) jointly developed by the Indian Space Research Organization (ISRO) and the Airports Authority of India (AAI) to provide the best possible navigational services over Indian FIR (Flight Information Region) with the capability of expanding to neighbouring FIRs.

GAGAN system helps minimise flight delays and save fuel apart from enhancing flight safety.

GAGAN is a system of satellites and ground stations that provide GPS signal corrections, giving you better position accuracy.

GAGAN consists of sets of ground stations strategically positioned across the country which is used to collect GPS satellite data on aircraft position and movement. Using this information, the master control centre generates messages to correct any signal errors.

These corrected messages are then uplinked and broadcast through geostationary communication satellites to receivers onboard aircraft using the same frequency as GPS.

All airline companies in the country, which have Boeing 787, have been given relaxation in the time limit to operate the GAGAN system compulsorily.

Currently, only Tata group-owned airlines – Vistara and Air India operate the B787 Dreamliner in India for overseas operations.

ALSO READ – Satellite-based Navigation System ‘GAGAN’ to be active in 3-5 years: Scindia

The system essentials for Boeing 787 have been exempted till December 31, 2025. That is, now airlines will not be obliged to implement the Gagan system till December 31, 2025. Companies have been given exemption from this for the next 3 years. This new system has been jointly developed with an investment of Rs 774 Cr.

Earlier this year, IndiGo became the first airline in the country to land aircraft using the indigenous navigation system GAGAN.

ALSO READ – Indigo becomes the first airline in Asia to use the GAGAN navigation system to land an aircraft

It will also provide increased accuracy in position reporting of aircraft, allowing for more uniform and high-quality air traffic management. As a plane approaches the runway for a landing, GAGAN offers lateral and vertical guidance. Its accuracy will be very helpful for small airports.

GAGAN is the first Satellite-Based Augmentation System in the world which has been certified for approach with vertical guidance operating in the equatorial ionospheric region.

Currently, only Tata group-owned airlines – Vistara and Air India operate the B787 Dreamliner in India for overseas operations.

GAGAN covers the area from Africa to Australia and has expansion capability for seamless navigation services across the region. GAGAN provides accuracy, availability, and integrity essential for each phase of flight, en route the approach for airports within the GAGAN service volume.

This makes airline operations more efficient and effective, increasing air safety, and fuel efficiency. Further, with vertical guidance at runways, a significant cost will be saved due to the withdrawal of ground aids and the reduced workload of airline crew and traffic controllers.

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