Mailing List Archive

Mailing List: techdiver

Banner Advert

Message Display

From: ScottBonis@ao*.co*
Date: Tue, 6 Aug 2002 23:34:54 EDT
Subject: Re: More on PA Quarry Rebreather death
To: grey@te*.ne*, techdiver@aquanaut.com
Hi There,

I think you pose a good question, why so many CCR deaths?  I have been 
wondering the same thing.

The only idea I have been able to come up with is "Complacency."  I believe 
the CCR rigs are complex enough that if ALL of the required checkout 
procedures are not carried out religiously, there is a reasonable chance that 
something may fail (or already have failed).  And some of the failure modes 
are such that there is no significant warning before unconsciousness results.

I think this may be coupled with the more stringent requirement to monitor 
the equipment performance.

How many of us have at some time, forgotten to check the performance of a 
backup second stage or both backup lights before a dive?  We may have gone 
through the entire dive without ever thinking about it.  But evidently with a 
CCR, the failure modes are subtle enough that forgetting to do the checks can 
be a precursor to real trouble.

I know it was ridiculously dumb but over the years I have made several 
recreational dives where someone else set up my rig, I grabbed a mask and 
fins, slipped into the BC, jumped in the water without ever putting the 
second stage in my mouth and only grabbed it on the way down, and never 
looked at any of my gauges until 45 minutes into the dive.  I dodged the 
bullet on these dives.  Evidently, the bullets are significantly more dense 
when using a CCR.

Commercial, military and most civilian pilots have learned the necessity and 
discipline of doing a preflight check before every flight.  I'm afraid that 
CCR divers have not yet learned this lesson.

But that's only one person's opinion.

Take care and dive safe,       Scott

Some weeks it's just not worth the effort to gnaw through the restraints and 
scramble up out of the pit.



In a message dated 8/6/02 8:52:01 PM, grey@te*.ne* writes:
<< ----- Original Message -----

From: "Joel Markwell" <joeldm@mi*.co*>

To: "Techdiver" <techdiver@aquanaut.com>

Sent: Tuesday, August 06, 2002 10:43 AM

Subject: Re: More on PA Quarry Rebreather death


> On 8/6/02 11:54 AM, "Daniel Smith" <Daniel_Smith@CO*.CO*> wrote:

>

> > At that point Bobby signaled to Adam to join our buddy team and went off

by

> > himself. This was not unusual, as he was not only certified as a solo

> > diver but also as a solo diving instructor.

>

> Solo diving instructor. That really says it all.

>

> Not only solo diving, but solo diving in extremely low vis and while on a

> rebreather.

>

> This "evolution" of tech diving is not one that will produce a successful

> species.

>

> JoeL


It is sad when anyone dies...be they diver or other.


I  find it difficult to comprehend why  so many rebreather divers over the

last several years are biting the dust???  Or the sand!!!


Is it the rigs they are diving ???.....the training...???  lack of

maintainence ...??? 12 " dickism...??? ... or lack there of  ???


I am not interested in the usual techdiver  shit...but I  would be

interested in

any constructive comments.


Since there is always an agenda on this list...I will tell you mine up

front....

After many years of OC.... I am moving to a rebreather.

Hence my interest.

Later, >>
--
Send mail for the `techdiver' mailing list to `techdiver@aquanaut.com'.
Send subscribe/unsubscribe requests to `techdiver-request@aquanaut.com'.

Navigate by Author: [Previous] [Next] [Author Search Index]
Navigate by Subject: [Previous] [Next] [Subject Search Index]

[Send Reply] [Send Message with New Topic]

[Search Selection] [Mailing List Home] [Home]