Group 1 - Indian Airlines flight AI180 experienced a technical failure in its left engine during a stopover in Kolkata, leading to passenger disembarkation for safety reasons [1] - The aircraft involved is a Boeing 777-200LR, which has been in service since February 2006 and was once the longest-range commercial aircraft [1] - The FAA issued an airworthiness directive in March 2024, indicating potential electrical insulation issues near the fuel tank of Boeing 777 aircraft, which could affect nearly 300 planes across various models [1] Group 2 - Recent aviation incidents in India include a crash of an Air India Boeing 787-8 that resulted in 279 fatalities, including 38 ground personnel [2] - Investigations into the crash suggest possible causes such as fuel contamination, maintenance issues, or pilot error, with simultaneous engine failure being a rare occurrence [2] - A helicopter crash in northern India resulted in the death of all seven onboard, while another Air India flight from Hong Kong to New Delhi returned due to suspected technical issues [2] - The Indian Ministry of Civil Aviation has initiated comprehensive inspections of Boeing 787 aircraft, with 8 out of 34 Dreamliners already checked [3]