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A plane previously used by King Charles saw one of its windows fall out after having its frames melted by lights used to film an advert, a report has revealed.
Three windows on the Titan Airways Airbus fell out while the plane 14,000ft in the air last October, after it took off from London Stansted Airport on a flight to Florida.
Passengers noticed ‘increased cabin noise’ and a crew member discovered one window was visibly loose in its frame.
The aircraft returned to Stansted after 36 minutes and none of the 24 people on board were injured.
Staff discovered a total of three windows were missing after landing and also saw fresh impact damage on the plane’s tail.
Charles and Queen Camilla had previously used the jet for a state visit to France last September.
Airbus A321 factfile
Aircraft Type: Airbus A321-253NX
Registration: G-OATW
Engines: 2 CFM International SA LEAP-1A33 turbofan engines
Year of manufacture: 2020
Date and time of incident: October 4, 2023 at 11.51am UTC
Location: London Stansted Airport
Type of flight: Commercial Air Transport (Passenger)
Persons on board: 11 crew and 9 passengers
Injuries: None
Damage: Damage to several cabin windows and impact damage to the left horizontal stabiliser
Commander’s age and flying experience: 54 years old. 4,905 hours (including 2,300 on type)
Prime Minister Rishi Sunak and Foreign Secretary James Cleverly also used it on official trips abroad.
The Airbus’ acrylic windows had shrunk after being exposed to ‘high intensity’ lights used for filming an advert the previous day, analysts at Air Accidents Investigation Branch (AAIB) found.
Film technicians positioned high intensity halogen lights outside the airliner’s fuselage as advertisers filmed some promotional footage on board the plane.
This light shone in through the windows to create a sunrise effect whilst advertisers filmed on board the plane the day before the incident.
The six lights used had a combined lighting capacity of 72,000 watts – more than seven hundred times greater than a household light bulb.
The AAIB report – first published in the Daily Telegraph – said: ‘The lights were first shone on the right side of the aircraft for approximately five and a half hours, with the light focused on the cabin windows just aft of the overwing exits.
‘The lights were then moved to the left side of the aircraft where they illuminated a similar area on the left side for approximately four hours.’
According to data from a light manufacturer, surfaces that are six metres away could see temperatures rise by as much as 147F (64C).
On the Airbus that day, technicians placed the lights between six and nine metres away.
Windows on airliners have two panes – a tough outer pane designed to withstand extreme temperatures and pressures, and an inner ‘scratch pane’ on the passenger side.