Failure of ROV lift umbilical winch brake – Update
- Safety Flash
- Published on 1 October 2001
- Generated on 21 March 2026
- IMCA SF 11/01
- 1 minute read
In the Safety Flash 09/01 we gave an update on the design problem found in a Macartney Cormax unit manufactured by Norlau (see Safety Flash 08/01 – Failure of ROV lift umbilical winch brake).
A Member advises that they have determined with the manufacturer of the winches that the hydraulic motors were inadvertently supplied without two check valves being fitted (although the circuit showed them being in place). The manufacturer will be refitting all of the Member’s winches with replacement motors. The Member understands (but cannot sure) that the manufacturer will be advising all other users of these winches about the problem. The Member is continuing to operate the winches in slow speed until each motor has been replaced.
Related safety flashes
-
IMCA SF 08/01
1 August 2001
IMCA Safety Flashes summarise key safety matters and incidents, allowing lessons to be more easily learnt for the benefit of the entire offshore industry.
The effectiveness of the IMCA Safety Flash system depends on the industry sharing information and so avoiding repeat incidents. Incidents are classified according to IOGP's Life Saving Rules.
All information is anonymised or sanitised, as appropriate, and warnings for graphic content included where possible.
IMCA makes every effort to ensure both the accuracy and reliability of the information shared, but is not be liable for any guidance and/or recommendation and/or statement herein contained.
The information contained in this document does not fulfil or replace any individual's or Member's legal, regulatory or other duties or obligations in respect of their operations. Individuals and Members remain solely responsible for the safe, lawful and proper conduct of their operations.
Share your safety incidents with IMCA online. Sign-up to receive Safety Flashes straight to your email.