FTMCPIUS
Topic Author
Posts: 121
Joined: Fri Mar 10, 2017 7:10 pm

Cause of returns/diversions

Tue Feb 05, 2019 10:17 pm

I don't know how to research stats on the passenger-related reasons for returns/diversions, but it seems there are a lot more of them lately.

My guess
a) Alcohol 50%
b) Drugs 25%
c) Total a##holes 20%
d) Medical 5%

Want to take a stab at it or do you have access to current stats?

Thx
 
gokmengs
Posts: 1102
Joined: Wed Mar 09, 2005 2:48 am

Re: Cause of returns/diversions

Tue Feb 05, 2019 10:21 pm

I don’t have stats but I’ll guess medical diversions must be more than (by a large amount) what you have for alcohol and drug related diversions. Your top 2 make the news when they occur, but not every medical diversion does. My 2 cents
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george77300
Posts: 909
Joined: Sat May 06, 2017 8:33 pm

Re: Cause of returns/diversions

Tue Feb 05, 2019 10:28 pm

I would say medical 1st by a long shot. Very frequent but don’t always make the news like the drunk/rude passenger.

There was a Air Malta that diverted to GVA yesterday, heard on ATC while flying over France but have seen no mention of that in the news (I’m in the UK).
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dmanonice
Posts: 38
Joined: Sat Jun 18, 2016 4:09 am

Re: Cause of returns/diversions

Tue Feb 05, 2019 10:33 pm

I would agree that medical diversions by far are more frequent than intox/unruly passenger related diversions.

This is based on my observations of 12 years as an airport worker so no solid data sets unfortunately.
Mike
 
ORDJOE
Posts: 671
Joined: Wed Aug 11, 2010 2:27 am

Re: Cause of returns/diversions

Tue Feb 05, 2019 11:16 pm

My guess pax related about 98 medical 1% alcohol 1% other
 
IPFreely
Posts: 2192
Joined: Sun Dec 24, 2006 8:26 am

Re: Cause of returns/diversions

Wed Feb 06, 2019 12:45 am

Medical diversions are a near-daily occurrence. They don't make the news. Issues like mechanical problems, fuel, and weather at the destination are probably right up there with medical as to how often they cause diversions. I'd guess alcohol/drugs/unruly passengers are about 1% of total diversions. But that 1% gets 99.999% of the publicity.
 
tjerome
Posts: 264
Joined: Fri Sep 09, 2016 3:03 am

Re: Cause of returns/diversions

Wed Feb 06, 2019 12:58 am

My guess:
1. Medical 60%
2. Destination WX/ATC 25%
3. Mechanical 13%
4. Unruly pax 2%
 
FTMCPIUS
Topic Author
Posts: 121
Joined: Fri Mar 10, 2017 7:10 pm

Re: Cause of returns/diversions

Wed Feb 06, 2019 1:09 am

tjerome wrote:
My guess:
1. Medical 60%
2. Destination WX/ATC 25%
3. Mechanical 13%
4. Unruly pax 2%

Wow! I was way off, especially on the medical. Thanks to all.
 
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atcsundevil
Moderator
Posts: 3196
Joined: Sat Mar 20, 2010 12:22 pm

Re: Cause of returns/diversions

Wed Feb 06, 2019 1:54 am

FTMCPIUS wrote:
I don't know how to research stats on the passenger-related reasons for returns/diversions, but it seems there are a lot more of them lately.

My guess
a) Alcohol 50%
b) Drugs 25%
c) Total a##holes 20%
d) Medical 5%

Want to take a stab at it or do you have access to current stats?

Thx

I don't have any numbers, but I can make a fairly educated guess based on my experience. Granted I work in the northeast, so diversions due to weather/misc holding (LGA goes into holding on just about any day that ends in Y, and usually for no particular reason) are far more common than elsewhere in the NAS.

Weather/lengthy holding: 50%
Medical: 40%
Mechanical: 9.5%
Other: 0.5%

Diversions for unruly passengers are actually very unusual. Even if you're strictly looking at diversions due to passenger issues, I'm willing to bet it's less than 1-2%. Almost all non-weather or non-mechanical diversions are medical, either passengers or crew.
 
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PatrickZ80
Posts: 3229
Joined: Tue Jul 13, 2010 5:33 am

Re: Cause of returns/diversions

Wed Feb 06, 2019 6:31 pm

atcsundevil wrote:
Granted I work in the northeast, so diversions due to weather/misc holding (LGA goes into holding on just about any day that ends in Y, and usually for no particular reason) are far more common than elsewhere in the NAS.


But this is strictly about passenger related diversions. Weather doesn't count.

It occurs to me that alcohol/drugs and total a$$holes are separated. If there is a diversion caused by an unruly passenger it's mostly a combination of alcohol/drugs and total a$$holes. Everybody reacts different to alcohol, so just being drunk itself doesn't have to be a problem. Lots of people can be highly intoxicated and still not cause any trouble. Only a small number of them become a$$holes. Also, the people being total a$$holes mostly behave very well when they're sober, they only become a$$holes when they're drunk.

But I agree, most diversions are medical. They just don't make the news.

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