National Association for Cave Diving

National Association for Cave Diving The NACD is the pioneer in cavediver training, education, exploration, conservation, and safety.

05/31/2026
03/02/2026
02/24/2026

Study of Cave Diving Accidents.

In Study of Cave Diving Accidents: History, Statistics, and Pathophysiology of the Discipline, Michel Ribera draws on decades of data, field reports, and scientific research to identify recurring patterns behind cave-diving incidents.

From global accident statistics to gas-related issues, disorientation, equipment failures, and human factors, the book sets out the mechanisms involved and the methods that reduce risk. As Ribera writes, cave diving “punishes the slightest mistake.”

In InDEPTH Magazine. Link in the comments.

00LX SECOND STAGE REGULATOR - STOP USE!Affected Part Number(s):PART NUMBERDESCRIPTION240.2010.07.M200LX + DCX YOKE240.20...
02/13/2026

00LX SECOND STAGE REGULATOR - STOP USE!
Affected Part Number(s):
PART NUMBER
DESCRIPTION
240.2010.07.M
200LX + DCX YOKE
240.2011.07.M
200LX + DCX DIN
240.2000.LX
200LX 2ND STAGE BLK
Affected Purchase Window: Units purchased between May 2, 2017, and May 15, 2025, may be affected.
HO.01.06.0046 - 200LX Stop Use
Reason for this notice:
Huish Outdoors has received reports of internal components within certain Hollis 200LX second stage regulators separating or fracturing before or after a dive.
Our investigation indicates that some units may exhibit reduced impact resistance, particularly if the second stage is dropped or struck on the adjustable inhalation k**b. In these cases, damage to the inlet tube assembly could render the second stage non-functional.
While no incidents have been reported during an active dive, this condition could pose a drowning hazard if it were to occur in use. As a precaution, we are issuing this Stop Use notice while we complete our technical review and prepare a corrective remedy.
Required Actions:
End Users:
Do not dive with the affected regulator.
Remove it from service immediately.
Do not attempt to repair, modify, or continue using the product.
Remedy (Next Steps):
Huish Outdoors is finalizing:
The required replacement parts, and
A standardized retrofit procedure to be performed by authorized technicians.
A follow-up notice will be issued shortly with:
Parts availability,
Dealer repair

Address

Gainesville, FL
32643

Website

Alerts

Be the first to know and let us send you an email when National Association for Cave Diving posts news and promotions. Your email address will not be used for any other purpose, and you can unsubscribe at any time.

Shortcuts

Share

Category