An American Airlines Boeing aircraft, flight AA735, returned to London Heathrow Airport after being struck by lightning over Manchester [1, 2, 3].
The incident highlights the critical safety protocols and engineering designs that protect commercial aircraft during severe weather events. While lightning strikes are alarming to passengers, the structural integrity of modern planes is designed to mitigate these risks.
Flight AA735 was traveling through Manchester airspace when the strike occurred [1, 2, 3]. Following the event, the crew declared an emergency and performed a U-turn to return to London Heathrow for an emergency landing [1, 2, 3].
Safety is maintained during such strikes because the metal skin of the aircraft acts as a Faraday cage [4, 1]. This design directs the electrical charge around the exterior of the fuselage, rather than allowing it to penetrate the interior where passengers and crew are located [4, 1].
Commercial aircraft are built to withstand these occurrences. According to technical data, every commercial plane is struck by lightning one to two times a year [4]. The exterior shell allows the electricity to flow across the surface and exit the aircraft, preventing damage to internal systems.
Air traffic controllers coordinated the return of AA735 to ensure a safe arrival at Heathrow [1, 2, 3]. No injuries were reported following the emergency landing.
“The aircraft was struck by lightning, declared an emergency, and performed a U‑turn to return to London Heathrow.”
This event demonstrates the practical application of the Faraday cage principle in aviation. By utilizing a conductive outer shell, aircraft can neutralize the massive electrical discharge of a lightning strike, transforming a potentially catastrophic event into a manageable operational delay.
