Overview
- The Boeing 787-9 operating as IndiGo flight 6E4 (registration LN-FND) departed Heathrow and halted its climb over the English Channel before turning back to land safely at London Heathrow.
- Flight-tracking and ATC data show the crew set transponder squawk 7700, the international code for a general onboard emergency that gives a flight immediate landing priority.
- IndiGo confirmed the aircraft landed safely and said it has been grounded for maintenance checks while the airline and aviation authorities review the issue.
- The specific cause of the emergency has not been publicly identified and could range from a technical fault to a medical incident, but no official determination has been released.
- Passengers were offered accommodation and rebooking options and investigators will examine aircraft systems and maintenance records to determine next steps and any safety follow-up.