Technical Bulletins,

Original PDF

Notice Date: October 21, 2019
Manufacturer: C3 Manufacturing
Affected Product: Perfect Descent™ Auto Belay model 220 Indoor, Outdoor, Speed Drive, and Direct
Drive units manufactured from February 2017 through April 2019

C3 Manufacturing is announcing a stop use and recall of auto belay units that may contain a material
defect that can prohibit the lanyard from retracting. While no accidents have been reported, C3 is
voluntarily recalling affected units out of an abundance of caution and consistent with our focus on safety
and quality. Our investigation indicates that defects may be present in the material used to manufacture
the retraction spring which can result in partial or complete fracture of the spring and loss of retraction
force. Complete fracture of the retraction spring will cause the lanyard to stop retracting and, in some
cases, the lanyard may “pay out” thereby creating additional slack in the system. Climbing while tethered
to a unit with a fractured retraction spring may result in serious injury or death.

C3 Manufacturing requests that you immediately remove all affected auto belays from service and
return them to your nearest service center for warranty upgrade of the retraction spring.

All returned units will be upgraded to the new Duplex Spring Design featuring twin retraction springs. This
new system comprised of two independent retraction springs will permit the unit to operate in the event
of a spring failure. The daily inspection procedure provides a simple method for confirming the dual
spring operation.

This notice affects units that are within the following serial number ranges:
I-0970 through I-3109 manufactured February 2017 through November 2018
S-0604 through S-1609 manufactured March 2017 through December 2018
S-1695 through S-1762 manufactured February 2019 through March 2019
D-1015 through D-1385 manufactured June 2018 through December 2018
D-1572 through D-1705 manufactured February 2019 through March 2019
D-1710 through D-1722 manufactured March 2019
D-1726 through D-1751 manufactured March 2019 through April 2019
D-1761 through D-1777 manufactured April 2019


1. Locate Perfect Descent Serial Number. Use the diagrams on page two (2) of this notice to find the
serial numbers and date of manufacture on your device. If your auto belay falls within the ranges noted
above, immediately remove from use and follow the instructions below. No action is required for units
with a serial number outside the range listed in this notice.
Note: If factory service has been performed to a unit in 2019, Please contact your service center for more
information as it may have already been upgraded to the Duplex Spring System.

2. Contact C3 Manufacturing or the nearest Authorized Service Center to arrange the return of the
affected devices. Contact C3 Manufacturing at 303-953-0874 or to make
arrangements for the return and repair of affected Perfect Descent auto belays. Customers outside of the
USA may contact the nearest Perfect Descent Authorized Service Center directly. A list of Perfect Descent
Authorized Service Centers can be found at Complete
the Inspection and Upgrade Form included with this notice and return a copy with each unit shipped to a
service center.

3. Choose your option for the Duplex Spring upgrade

Option 1: Warranty Upgrade of Retraction Spring Only
The Service Center will upgrade the device to the Duplex Spring Design and perform an
inspection of the internal components during the upgrade process. The unit will not be recertified
and will need to be returned for mandatory recertification on or before the next service date as
indicated on the device labeling. There will be no charge for the spring upgrade, unit inspection,
and return transportation fees. Return shipping will be by the most economical method available
and can be expedited for an additional charge.

Option 2: Bi-Annual Recertification Plus Warranty Upgrade of Retraction Spring
The Service Center will perform the bi-annual recertification AND upgrade the device to the
Duplex Spring Design in the process. The recertification fee will be prorated based on the number
of months left in the service cycle and the Duplex Spring Design upgrade will be included at no
additional charge. Proration only applies to the base recertification fee and does not include
return shipping or replacement components that may be in addition to the base service fee (ie
replacement lanyard). Recertified units will begin a new 24-month service cycle upon return.

We understand that auto belays are an important part of your business and we apologize for any
disruption this action may cause. We will make every attempt to upgrade and return your device(s) as
quickly as possible.

*Note-Devices outside the range indicated in this notice will be upgraded to the Duplex Design spring
system upon the next recertification. Additional charges may apply at that time. Contact an Authorized
Service Center for details.

Use these diagrams to locate your serial number and date of manufacture.