Here's an earlier clothing optional incident at BA as reported by the Sunday Times:
May 5 1999
Stewardess takes off as plane lands
BY ARTHUR LEATHLEY, AVIATION CORRESPONDENT
EVERYONE was pleased when a British Airways jet arrived almost half an hour early at Genoa. Travellers were able to make an early start for their hotels, and Italian airport workers were able to see a half-naked air hostess running down the steps and around the plane.
The stewardess had bet the pilot that she would strip down to her underwear if their flight from Gatwick reached its destination early. The 23-year-old brunette not only kept her side of the bargain, she also put on the captain's cap, tip-toed down the aircraft steps after most of the passengers had disembarked and sprinted around the Boeing 737, "smiling and wiggling" according to onlookers, before re-boarding.
However, while the new incentive for punctual flying was universally praised in Italy, BA officials back home were less than amused. "We take this very seriously," a spokesman said. "It seems there was some inappropriate behaviour and we are looking into the details of what happened." He claimed that the woman also wore a yellow tabard to protect her modesty. The stewardess, who has not been named, has been allowed to continue working while an inquiry is carried out, although the company declined to reveal which route she is using.
The pilot on the Sunday flight to Genoa's Christopher Columbus airport is believed to have taken advantage of favourable wind conditions and uncongested air traffic space to make an early landing. Many flight-times in Europe have built-in delays to take account of expected traffic congestion.
The respected Italian newspaper La Repubblica praised the ingenuity of the wager: "It is only a pity that most of the passengers missed the most pleasant and original aspect of the flight, which was the real reason it came in early."