An aircraft sits on the ground – quarantined for suspected Ebola. No confirmation or anything, a passenger just threw up on the flight.
Air sickness? Rich food? Nervous tension? Or good old norovirus?
Nobody’s taking any chances. So passengers sit to have their symptoms checked.
Time is money
And the meter is running – landing fees, apron fees, security, ground staff support, aircraft servicing, facilities supply, passengers transfers, aircraft valeting, sanitation.
At Heathrow, it could cost over £20,000 just to land. Once down, just sitting parked is around £200 an hour. None of the other fees are cheap either. You wouldn’t want them to be. Passenger safety and security is much too important.
It may be slightly cheaper at Madrid’s Barajas airport. Where an Air France Airbus A320 landed on Thursday to be be immediately quarantined – because a passenger from Lagos was on board who displayed signs of the Ebola virus.
After getting the passengers off, a statement by Air France said the return flight was cancelled and the aircraft would be disinfected. More time, more money.
And it’s starting to happen more and more.
Everyone in a tizz
Like Flight 1143, another Airbus A320, the Frontier Airlines aircraft on which Ebola victim Amber Vinson flew from Cleveland to Dallas on 13th October.
This one has the Americans in a total tizz. It’s been returned to service, cleaned several times following the Centers for Disease Control guidelines which themselves are vague, and now sits grounded in Cleveland – presumably awaiting major decontamination.
The same hesitation is all over – aircraft quarantined and then grounded. Emirates Flight 237 from Dubai to Boston on Monday. The KLM flight to Amsterdam from Glasgow three days ago. Another KLM flight from Amsterdam to Værnes in Norway back in August. The Gambia Bird flight from Freetown to Gatwick via Banjul the week before.
A lengthy process
It takes time to decontaminate an aircraft. And it’s a messy business. Recommended by the World Health Organisation, the preferred procedure after thorough cleaning is to seal the aircraft and admit carboxide gas – a mixture of 10% ethylene oxide and 90% carbon dioxide – pumped in under pressure and maintained at a constant temperature for 6-12 hours.
A second method involves ethylene oxide and Freon II for a similar period. Or introducing betapropiolactone in vapour form for two hours – which must be 98% pure, or it causes a sticky polymer to form on all surfaces.
But it has to be done. Though the Ebola virus can exist outside the body for only a short time, its incubation period is 21 days. During which time how many passengers came on board and what did they touch?
Do the math. Schedule an increasing number of planes through the process as Ebola cases multiply – and sooner or later, it’s going to hit your credit card.
The Nigerian alternative
Unless of course, the airlines choose to use hydrogen peroxide. Twenty minutes per aircraft and all viruses and bacteria that may have been on board are gone – a reduction of 99,9999%.
The same stuff is already being used to combat Ebola in Africa. Already more than 100 super-misting machines have been sent to Nigeria, the only country which can claim to have brought the outbreak under control.
Let’s hope the airlines are watching – before our fares go through the roof.
Originally posted 2014-10-17 15:06:15.