Go Back  PPRuNe Forums > Flight Deck Forums > Rumours & News
Reload this Page >

Smoking next to an aircraft being refuelled.

Rumours & News Reporting Points that may affect our jobs or lives as professional pilots. Also, items that may be of interest to professional pilots.

Smoking next to an aircraft being refuelled.

Old 21st Sep 2019, 13:20
  #21 (permalink)  
 
Join Date: Mar 2002
Location: Florida
Posts: 4,569
Likes: 0
Received 1 Like on 1 Post
Summary

Very little risk by smoking near an airplane fueling

except if there happens to be a wind to vaporize the fuel so be sure and hold a balloon with you while boarding to check for a wind
lomapaseo is offline  
Old 21st Sep 2019, 13:52
  #22 (permalink)  
 
Join Date: Aug 2015
Location: 5Y
Posts: 597
Received 5 Likes on 3 Posts
Since this thread has gone well off topic, allow me to continue....I would be interested in any comments on this...

I was among the passengers bussed out to a KQ E190 at Addis Ababa recently. On arrival at the aircraft, boarding was done with passengers being allowed onto the a/c in groups of max 5 people "because the a/c was being refuelled".

I have never encountered that before, what is the logic? Is that a KQ thing? An Addis airport thing? An ICAO thing ?
double_barrel is offline  
Old 21st Sep 2019, 14:47
  #23 (permalink)  
 
Join Date: Sep 2014
Location: Erewhon
Posts: 474
Likes: 0
Received 0 Likes on 0 Posts
Originally Posted by ManaAdaSystem
Fire during fueling

All it takes is a heat source and a fuel spray. The latter is unusual, but I have had fuel spraying out of the fuel vents a few times.
The rules are there for a reason.
Surely not ?
Brian W May is offline  
Old 21st Sep 2019, 15:01
  #24 (permalink)  
 
Join Date: Mar 2008
Location: England
Age: 65
Posts: 303
Likes: 0
Received 0 Likes on 0 Posts
Lomapaseo,

Taking your remark as somewhat T.I.C., this forum does have a habit of being becoming a de facto reference source. No smoking/Naked lights airside is a pretty universal sanction, certainly in Western Europe and the U.S., for good reason - mitigating risk is why aviation is as safe as it is.
Cannot commend the decisive action taken by the captain enough
Momoe is offline  
Old 21st Sep 2019, 15:19
  #25 (permalink)  
 
Join Date: Mar 2002
Location: Florida
Posts: 4,569
Likes: 0
Received 1 Like on 1 Post
Originally Posted by Momoe
Lomapaseo,

Taking your remark as somewhat T.I.C., this forum does have a habit of being becoming a de facto reference source. No smoking/Naked lights airside is a pretty universal sanction, certainly in Western Europe and the U.S., for good reason - mitigating risk is why aviation is as safe as it is.
Cannot commend the decisive action taken by the captain enough
Fair enough, it's just that I haven't seen many becalmed days while boarding at airports
lomapaseo is offline  
Old 21st Sep 2019, 19:58
  #26 (permalink)  
 
Join Date: Jan 2013
Location: Seattle Area
Posts: 263
Likes: 0
Received 0 Likes on 0 Posts
Originally Posted by double_barrel
Since this thread has gone well off topic, allow me to continue....I would be interested in any comments on this...

I was among the passengers bussed out to a KQ E190 at Addis Ababa recently. On arrival at the aircraft, boarding was done with passengers being allowed onto the a/c in groups of max 5 people "because the a/c was being refuelled".

I have never encountered that before, what is the logic? Is that a KQ thing? An Addis airport thing? An ICAO thing ?
Since nobody has answered this I'll venture a guess that, since it was airstair and not jetway loading, they didn't want a big line of people at the airplane waiting to slowly get in the door while they are fueling.
Dave Therhino is offline  
Old 22nd Sep 2019, 09:24
  #27 (permalink)  
 
Join Date: Jan 2003
Location: Manchester
Age: 45
Posts: 615
Likes: 0
Received 0 Likes on 0 Posts
From a chemistry point of view, yes you could extinguish a naked flame with kerosene, it's got a pretty low vapour pressure and a reasonably high flashpoint.

I wouldn't recommend it though especially if it is atomized.
Ex Cargo Clown is offline  
Old 22nd Sep 2019, 10:18
  #28 (permalink)  

Avoid imitations
 
Join Date: Nov 2000
Location: Wandering the FIR and cyberspace often at highly unsociable times
Posts: 14,573
Received 412 Likes on 217 Posts
Point is, fuel in liquid form won't burn. Only the vapour burns.
A full fuel tank contains little vapour, but an empty fuel tank is full of it.
ShyTorque is online now  
Old 22nd Sep 2019, 13:15
  #29 (permalink)  
 
Join Date: Mar 2002
Location: Florida
Posts: 4,569
Likes: 0
Received 1 Like on 1 Post
Originally Posted by ShyTorque
Point is, fuel in liquid form won't burn. Only the vapour burns.
A full fuel tank contains little vapour, but an empty fuel tank is full of it.
But all you need is some vapour

You then need to take into account the probability of an ignition source and the probability of sloshing to fill a larger closed area
lomapaseo is offline  
Old 22nd Sep 2019, 16:50
  #30 (permalink)  
 
Join Date: May 2010
Location: UK
Age: 79
Posts: 1,086
Likes: 0
Received 0 Likes on 0 Posts
An empty tank is full of vapour. When you fill the tank this displaces the vapour which overflows, (heavier than air), falls to the ground to make a puddle of vapour. This could very well be an ignition hazard especially on a calm day.
The Ancient Geek is offline  
Old 22nd Sep 2019, 19:03
  #31 (permalink)  
 
Join Date: Aug 2000
Posts: 1,499
Likes: 0
Received 0 Likes on 0 Posts
Vapour does not burn, just check the video posted earlier.
Fuel needs to be atomized to catch fire. A fuel spray will do that. As happened in the BA fire during fueling.
ManaAdaSystem is offline  
Old 22nd Sep 2019, 19:11
  #32 (permalink)  
 
Join Date: Nov 2000
Location: Cambridge, England, EU
Posts: 3,443
Likes: 0
Received 1 Like on 1 Post
Originally Posted by drichard
There are times my fellow travellers leave me speechless...

https://metro.co.uk/2019/09/20/idiot...lled-10778001/
A couple of observations.

(1) The old Paddy Ashdown joke. He was in a meeting in his HQ in Bosnia, which was next door to a petrol station. His staff were getting all worked up about this being a dangerous location - what if the baddies were to blow up the petrol station?

"Have any of you lot actually tried to blow up a petrol station?" asked Paddy.

"No", they said.

"Well," said Paddy, "I have, and it's bloody difficult."

(2) Marquess of Bristol. Smoking whilst refuelling his chopper at Cambridge. Then took off straight from the pumps, none of this taxying to where ATC told him to or any of that nonsense.

Gertrude the Wombat is offline  
Old 22nd Sep 2019, 19:51
  #33 (permalink)  

Avoid imitations
 
Join Date: Nov 2000
Location: Wandering the FIR and cyberspace often at highly unsociable times
Posts: 14,573
Received 412 Likes on 217 Posts
Originally Posted by ManaAdaSystem
Vapour does not burn, just check the video posted earlier.
Fuel needs to be atomized to catch fire. A fuel spray will do that. As happened in the BA fire during fueling.
Very wrong! By that logic it would be safe to weld a drained petrol tank where there is no atomised fuel spray.
Obviously, to burn, any form of any fuel also needs oxygen mixed with it....if that's what you're getting at?

P.S. do NOT try welding a petrol tank at home, or anywhere else.

Btw, years ago I saw a fire begin in an almost full motorbike petrol tank. Once the (thankfully small) volume of fuel/air vapour above the liquid fuel in the tank instantly burned with a "pop" the fire blew itself out. Thankfully, the person nearest put the fuel cap back on again.
ShyTorque is online now  
Old 22nd Sep 2019, 21:09
  #34 (permalink)  
 
Join Date: Aug 2000
Posts: 1,499
Likes: 0
Received 0 Likes on 0 Posts
Originally Posted by ShyTorque
Very wrong! By that logic it would be safe to weld a drained petrol tank where there is no atomised fuel spray.
Obviously, to burn, any form of any fuel also needs oxygen mixed with it....if that's what you're getting at?

P.S. do NOT try welding a petrol tank at home, or anywhere else.

Btw, years ago I saw a fire begin in an almost full motorbike petrol tank. Once the (thankfully small) volume of fuel/air vapour above the liquid fuel in the tank instantly burned with a "pop" the fire blew itself out. Thankfully, the person nearest put the fuel cap back on again.
I thought this discussion was about jet fuel?
Petrol will catch fire very easily. Jet fuel not.
Again, see the video postet earlier.
ManaAdaSystem is offline  
Old 22nd Sep 2019, 21:40
  #35 (permalink)  
 
Join Date: Sep 2013
Location: UK
Posts: 89
Likes: 0
Received 0 Likes on 0 Posts
Originally Posted by ManaAdaSystem


I thought this discussion was about jet fuel?
Petrol will catch fire very easily. Jet fuel not.
Again, see the video postet earlier.
The video posted is a YouTube video that contains many technical errors and the guy clearly does not fully understand what he is talking about (plus anyone who stands over a jar full of petrol and throws a match into it is clearly lacking in brain cells!). The fact is that vapour most definitely does burn! the term "flammable liquid" is technically a misnomer as it not the liquid that burns but the vapour that it gives off when combined in the right proportions with oxygen in the atmosphere. All flammable liquids have a property known as the flash point which is the temperature above which it will give off sufficient vapour for it to ignite if a source of ignition is present. In the case of volatile fuels such as avgas or mogas that temperature is around -45 deg C so they give off flammable vapour at all normal temperatures. JetA1 has a flash point of at least 38 deg C so needs to be heated above that temperature before it will give off sufficient vapour to ignite.
PJD1 is offline  
Old 22nd Sep 2019, 22:06
  #36 (permalink)  
 
Join Date: Jul 2013
Location: Everett, WA
Age: 68
Posts: 4,392
Received 179 Likes on 87 Posts
Originally Posted by ManaAdaSystem
I thought this discussion was about jet fuel?
Petrol will catch fire very easily. Jet fuel not.


It's worth noting that rules don't normally take into account the type of aircraft or fuel. Sure, smoking while fueling with Jet A or similar is very different than while fueling with aviation gas/petrol. But most airports do both and don't want to be bothered with different sets of rules for different aircraft or fuels.
tdracer is offline  
Old 22nd Sep 2019, 23:11
  #37 (permalink)  

Avoid imitations
 
Join Date: Nov 2000
Location: Wandering the FIR and cyberspace often at highly unsociable times
Posts: 14,573
Received 412 Likes on 217 Posts
Originally Posted by ManaAdaSystem

I thought this discussion was about jet fuel?
Petrol will catch fire very easily. Jet fuel not.
Again, see the video postet earlier.
The point you’re not understanding or missing, is that any vapour, from any liquid fuel will burn. Some liquid fuels need a higher temperature than others to vaporise, but once in vapour form, they will burn. The same is true about many solids, even metals.
ShyTorque is online now  
Old 23rd Sep 2019, 00:12
  #38 (permalink)  
 
Join Date: Dec 2010
Location: Perth, WESTERN AUSTRALIA
Age: 71
Posts: 888
Received 17 Likes on 11 Posts
Originally Posted by PJD1
............ JetA1 has a flash point of at least 38 deg C so needs to be heated above that temperature before it will give off sufficient vapour to ignite.
......... and gasoline has a flash point around -40 deg C. Yes, that's MINUS 40.

WingNut60 is offline  
Old 23rd Sep 2019, 00:19
  #39 (permalink)  
 
Join Date: May 2010
Location: UK
Age: 79
Posts: 1,086
Likes: 0
Received 0 Likes on 0 Posts
Originally Posted by WingNut60
......... and gasoline has a flash point around -40 deg C. Yes, that's MINUS 40.
Hmm - Do you mean -40deg C or deg F ?
Both the same at -40

The Ancient Geek is offline  
Old 23rd Sep 2019, 00:43
  #40 (permalink)  
fdr
 
Join Date: Jun 2001
Location: 3rd Rock, #29B
Posts: 2,951
Received 856 Likes on 256 Posts
Darwin would have something to say on the matter.
fdr is offline  

Thread Tools
Search this Thread

Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service

Copyright © 2024 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.