A British Airways jet was forced to make an emergency landing after two women pilots 'almost passed out' at the controls. The captain and first officer had to put on oxygen masks as the . aircraft, which had just taken off from Heathrow, was climbing at 20,000 . feet. Twenty minutes into the . Glasgow-bound flight, passengers heard a 'panicked' call for a senior . member of the cabin crew to come to the aid . of the flight crew 'immediately'. The plane, an Airbus A321, was heading to Glasgow when both pilots reported feeling unwell . Passengers saw 'worried' air stewards . carrying oxygen cylinders as the plane turned around and headed full . speed back to Heathrow. One . passenger, a 40-year-old health and safety manager, said: 'I know we flew back much faster than we had set off because we began descending sharply almost straight away. 'A lot of . stewards were moving about. You could tell they had a lot on their . plate, with this happening so soon into the flight.' The Airbus A321, which was carrying more than 100 passengers, landed safely back at Heathrow on December 20 and was met by around 10 fire engines and two ambulances. Bewildered travellers were told only that they were heading back 'due to a technical fault'. One frightened elderly passenger had to be attended to by staff as the emergency return began. Dramatic escape: Passengers were rushed back to Heathrow after both the Captain and first officer became dizzy and light-headed during the ascent (file photo) British airlines have been hit by toxic fume leaks at a rate of five flights a week unbeknown to passengers, figures revealed at the end of last year. The Civil Aviation Authority  received 254 reports of problems in the cabin or cockpit in the 12-month period before. The data logs emergency landings, distress calls and incidents where cabin crew have had to wear oxygen masks. The dossier was released as plane manufacturer Boeing agreed an undisclosed payout to former flight attendant, Terry Williams for her exposure to contaminated air. The mother-of-two said she suffered memory loss, and speech and vision impairment after toxic air leaked into the cabin of an American Airlines plane in 2007. The CAA also reveals emergency landings after crew have fallen ill. Cabin air on most aircraft is supplied unfiltered through the outside engine system. It can be contaminated by an oil leak, which leads to pungent smells that can cause headaches, nausea or even unconsciousness. The Department for Transport has denied claims that the CAA dossier should cause concerns for people on board flights. The incident, which is . now being investigated by the Air Accident Investigation Branch, was . also reported on a professional pilots' website. One user wrote: 'Departed Heathrow at 4 . pm-ish, at approx 20 mins into flight a very abrupt and . panicked message came over the PA from the pilot.' He said there were a . number of 'worried faces' among the flight attendants he saw with . oxygen cylinders and said the plane headed back to Heathrow . 'at great speed'. 'No announcement for a long time then the . expected technical problem line was posted to all,' he added. 'We landed no problem . but were met by a full fire service turn out, including local authority . fire service and engineers etc etc. 'It later transpires that both pilots became lightheaded/dizzy/unwell at the same time, in my book that's serious.' Paramedics boarded the plane first . and passengers discovered that both pilots had felt as though they . had been about to pass . out. The 40-year-old health and safety manager said: 'That moment was very . alarming, and I travel by air all the time. I take my hat off to the stewards for being so calm and . collected. They did a fantastic job. 'There was none of this ridiculous clapping on landing and most . people on the flight got on the next one straight afterwards. 'Of . course, about 90 per cent still thought we had returned because of a . technical fault.' A BA spokeswoman said today that the . aircraft had been thoroughly inspected and no fault was found, with the . plane going back into service the next day. She added: 'During a journey from . Heathrow to Glasgow, flight crew reported feeling light-headed so, as a . precaution and following normal procedure, put on oxygen masks. 'Our flight crew are highly trained . to deal with such circumstances. The aircraft returned to Heathrow, . landed safely and customers continued their journey on a replacement . aircraft after a short delay. 'We apologise to customers for the inconvenience but their safety is always our highest priority.' The passengers were greeted at Terminal 5 shortly after take-off by paramedics and fire crews .
Women officers have to put on oxygen masks 20 minutes into flight .
Passengers hear 'panicked' captain call for help from senior cabin crew .
Emergency return to Heathrow 'at great speed'
A British Airways jet was forced to make an emergency landing after two women pilots 'almost passed out' at the controls. The captain and first officer had to put on oxygen masks as the . aircraft, which had just taken off from Heathrow, was climbing at 20,000 . feet. Twenty minutes into the . Glasgow-bound flight, passengers heard a 'panicked' call for a senior . member of the cabin crew to come to the aid . of the flight crew 'immediately'. The plane, an Airbus A321, was heading to Glasgow when both pilots reported feeling unwell . Passengers saw 'worried' air stewards . carrying oxygen cylinders as the plane turned around and headed full . speed back to Heathrow. One . passenger, a 40-year-old health and safety manager, said: 'I know we flew back much faster than we had set off because we began descending sharply almost straight away. 'A lot of . stewards were moving about. You could tell they had a lot on their . plate, with this happening so soon into the flight.' The Airbus A321, which was carrying more than 100 passengers, landed safely back at Heathrow on December 20 and was met by around 10 fire engines and two ambulances. Bewildered travellers were told only that they were heading back 'due to a technical fault'. One frightened elderly passenger had to be attended to by staff as the emergency return began. Dramatic escape: Passengers were rushed back to Heathrow after both the Captain and first officer became dizzy and light-headed during the ascent (file photo) British airlines have been hit by toxic fume leaks at a rate of five flights a week unbeknown to passengers, figures revealed at the end of last year. The Civil Aviation Authority  received 254 reports of problems in the cabin or cockpit in the 12-month period before. The data logs emergency landings, distress calls and incidents where cabin crew have had to wear oxygen masks. The dossier was released as plane manufacturer Boeing agreed an undisclosed payout to former flight attendant, Terry Williams for her exposure to contaminated air. The mother-of-two said she suffered memory loss, and speech and vision impairment after toxic air leaked into the cabin of an American Airlines plane in 2007. The CAA also reveals emergency landings after crew have fallen ill. Cabin air on most aircraft is supplied unfiltered through the outside engine system. It can be contaminated by an oil leak, which leads to pungent smells that can cause headaches, nausea or even unconsciousness. The Department for Transport has denied claims that the CAA dossier should cause concerns for people on board flights. The incident, which is . now being investigated by the Air Accident Investigation Branch, was . also reported on a professional pilots' website. One user wrote: 'Departed Heathrow at 4 . pm-ish, at approx 20 mins into flight a very abrupt and . panicked message came over the PA from the pilot.' He said there were a . number of 'worried faces' among the flight attendants he saw with . oxygen cylinders and said the plane headed back to Heathrow . 'at great speed'. 'No announcement for a long time then the . expected technical problem line was posted to all,' he added. 'We landed no problem . but were met by a full fire service turn out, including local authority . fire service and engineers etc etc. 'It later transpires that both pilots became lightheaded/dizzy/unwell at the same time, in my book that's serious.' Paramedics boarded the plane first . and passengers discovered that both pilots had felt as though they . had been about to pass . out. The 40-year-old health and safety manager said: 'That moment was very . alarming, and I travel by air all the time. I take my hat off to the stewards for being so calm and . collected. They did a fantastic job. 'There was none of this ridiculous clapping on landing and most . people on the flight got on the next one straight afterwards. 'Of . course, about 90 per cent still thought we had returned because of a . technical fault.' A BA spokeswoman said today that the . aircraft had been thoroughly inspected and no fault was found, with the . plane going back into service the next day. She added: 'During a journey from . Heathrow to Glasgow, flight crew reported feeling light-headed so, as a . precaution and following normal procedure, put on oxygen masks. 'Our flight crew are highly trained . to deal with such circumstances. The aircraft returned to Heathrow, . landed safely and customers continued their journey on a replacement . aircraft after a short delay. 'We apologise to customers for the inconvenience but their safety is always our highest priority.' The passengers were greeted at Terminal 5 shortly after take-off by paramedics and fire crews .
first officer had to put on oxygen masks as the . a 'panicked' call for a senior . member of the where cabin crew have had to wear oxygen masks. mins into flight a very abrupt and . panicked Heathrow . 'at great speed'. 'No announcement for