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FlyBE Given Clearence To Fly In Future Ash Clouds  
User currently offlinegilesdavies From United Kingdom, joined Dec 2003, 3014 posts, RR: 2
Posted (4 years 3 months 1 week 6 days 11 hours ago) and read 4865 times:

FlyBE have been given special authority by the UK's CAA to allow their Q400 aircraft to continue flying in future ash clouds that may pass over the UK...

It seems the days of Turbo Prop maybe having a renaissance!

I'll leave the below email and link I received to explain it all:

BREAKING NEWS FOR FLYBE PASSENGERS!
We know it’s been a tough time for all air travellers over the last few weeks, and we thank you for your patience in these unprecedented times. However we have some breaking news that not only is a first amongst UK airlines but is wonderful news for any of you wondering whether you might be affected in the future.

We can confirm that with immediate effect Flybe will be the first airline in the UK to be able to fly within the new CAA-approved safe levels of volcanic ash. The CAA called upon the industry to bring forward thoroughly researched proposals to safely improve the ability to fly in the vicinity of low level volcanic ash concentrations. Flybe worked closely with the Met Office, Bombardier and Pratt & Whitney our engine manufacturers in Canada to develop the proposals which have today been endorsed by the CAA. Flybe’s overriding concern is always safety, and these new rules arise from a proven process of safety management within the company and the industry which helps make air travel the safest form of public transport.

What does this actually mean for you our customers?

Well basically it means that we will be far less affected by any future ash clouds coming our way. Taking the last two days as an example, at Flybe we had to cancel 380 flights under the previous rules, the new rules we have just been given by the CAA mean we would have only have had to cancel 21. This would mean that less than 3% of our total programme would have been affected.

We thank the CAA and Met Office for their support in this work and look forward to working with them further to get the UK safely back on the move. We hope with these measures will mean you will once again feel confident in booking air travel.

http://www.flybe.com/news/1005/17.htm


[Edited 2010-05-17 14:24:47]

3 replies: All unread, jump to last
 
User currently offlinetimboflier215 From United Kingdom, joined May 2005, 1336 posts, RR: 1
Reply 1, posted (4 years 3 months 1 week 6 days 10 hours ago) and read 4802 times:

Wow, could this lead to them stealing a lot of last minute pax if the ash cloud should descend once more? They could gain a significant advantage in the future if they are the only airline operating a largely unaffected schedule...

It does also seem incredible to me that this was not granted earlier, if they knew that ash was a particular problem for jet engines...?


User currently offlineBrouAviation From Netherlands, joined Jun 2009, 985 posts, RR: 1
Reply 2, posted (4 years 3 months 1 week 6 days 10 hours ago) and read 4615 times:

Quoting gilesdavies (Thread starter):
FlyBE have been given special authority by the UK's CAA to allow their Q400 aircraft to continue flying in future ash clouds that may pass over the UK...

Why, as essentially turbines aren't different to cased turbofans at all. A combustion chamber of a PT6 isn't fundamentally different from a GE90, isn't it?

This however is the way forward: testing, certification and documentation from the manufacturers' side is needed to deal with ash-problems in the future. Good to see P&W is taking it's responsibility in this.



Never ask somebody if he's a pilot. If he is, he will let you know soon enough!
User currently offlinePW100 From Netherlands, joined Jan 2002, 2446 posts, RR: 12
Reply 3, posted (4 years 3 months 1 week 5 days 11 hours ago) and read 3511 times:

Last week P&WC issued an SIL [Service Information Letter] and an SI [Special Instruction] in how to deal with volcanic ash operations, including some special instructions to be carried out after flying through moderate levels of ash. I believe that these instructions are applicable to PW100 and PW150 series engines, not sure on PT6 though.

I believe that P&WC was the first major engine OEM to publish these procedures and instructions.b Obviously FlyBE has waisted no time whatsoever to implement these procedures in their maintenance program.

Quoting BrouAviation (Reply 2):
Why, as essentially turbines aren't different to cased turbofans at all. A combustion chamber of a PT6 isn't fundamentally different from a GE90, isn't it?

Correct. From an ash-cloud perspective, it does not really matter if its an CFM56, GE90 or PW123. Operating temperatures, gaspath flow characteristics, secondary air system [cooling, bearing cavity sealing], etc, that may be vulnerable are more or less identical for all modern turbine engines. Driving a fan, prop or rotary wing is not going to make a fundamental difference.

Regards,
PW100



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