An Air India Boeing 777 bound for San Francisco returned to Delhi after a technical malfunction occurred during the flight [1], [2], [3].
The incident raises questions about aircraft maintenance and reliability, particularly as the specific plane involved had a lengthy history of being grounded before returning to service.
The aircraft, named "Goa" [5], was forced to abort its mission due to a faulty Traffic Collision Avoidance System [2], [3]. This critical safety system is designed to prevent mid-air collisions by alerting pilots to nearby aircraft. The flight spent between eight [3] and nine [1] hours in the air before the crew decided to return to Delhi.
Approximately 230 passengers were on board the flight when the technical snag occurred [6]. The return trip ensured the safety of the passengers and crew, though it resulted in significant delays for those traveling to the U.S.
Records indicate this specific Boeing 777 [4] had a troubled history prior to this flight. The aircraft was previously grounded for six years at a Maintenance, Repair, and Overhaul (MRO) facility in Nagpur, Maharashtra [1], [2].
Reports said the prolonged grounding in Nagpur was caused by a shortage of spare parts [1], [2]. The lack of available components delayed the necessary repairs required to make the aircraft airworthy again. Following the completion of those repairs, the plane was reintroduced into the Air India fleet.
The return to Delhi marks a rare occurrence for a long-haul flight of this distance, as the aircraft had already traversed a significant portion of its journey toward the U.S. coast before the malfunction necessitated a turnaround [1], [3].
“The aircraft was previously grounded for six years at a Maintenance, Repair, and Overhaul (MRO) facility in Nagpur”
The return of a long-haul aircraft after nearly 10 hours of flight underscores the critical nature of the Traffic Collision Avoidance System for transoceanic travel. Furthermore, the fact that this specific airframe spent six years grounded due to supply chain issues for spare parts highlights the ongoing challenges airlines face in maintaining aging wide-body fleets and the risks associated with integrating long-dormant aircraft back into active service.
