The studio lamps were placed much closer to the aircraft windows than the minimum safe distance of 10m, and there were a lot of them.

According to the spec sheet for the Maxibrute 12 lamp head [1], it has 12 1000W PAR64 halogen lamps and the surface external can reach 400 C.

The data sheet for an Osram PAR64 1000W lamp [2] has the following safety advice:

“To prevent personal injury or damage to property, halogen lamps may only be operated in suitable luminaires designed with suitable mechanisms (cover panel etc.) to ensure that in the event of a lamp bursting no parts/shards can escape and that during operation no ultraviolet radiation can escape. Because of the heat produced only heat-resistant lamp connections (holders) may be used. Do not operate near people, or any materials that are flammable, sensitive to heat or affected by drying out.

[1] https://www.filmgear.net/image/catalog/Spec/01Maxibrute/info...

[2] https://www.osram.com/appsj/pdc/pdf.do?cid=GPS01_1044353&vid...