PASSENGERS recoiled in horror as a man defecated on the floor of a packed British Airways plane.
Families were appalled as the flyer staged a dirty protest before running around the cabin.
Crew members gagged as the poo was spread along the carpets and curtains of the Boeing 777-336 jet.
Emergency services were called to Heathrow airport seconds before Flight BA075 took off for Lagos.
A report seen by The Sun: "During boarding a passenger stripped from the waist down and defecated on the galley floor. He sat in it and rubbed it onto the galley floor and aisle carpets.
"He walked in it and started running up the aisle as far as Door 4. He smeared his arms to elbow in faecal matter, and door seats as he went.
"The curtains and carpets were severely contaminated. Very important that a hygienic biohazard and deep clean is carried out and properly supervised and signed off."
The October 7 flight was delayed while the aircraft was swapped and taken out of service at huge expense to BA.
Distraught passengers were delayed by up to three hours.
British Airways told The Sun: "We apologised to our customers for the delay to their flight and arranged for an alternative aircraft to allow them to continue their journey."
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