Snaking air hose

  • Safety Flash
  • Published on 1 March 2004
  • Generated on 18 November 2025
  • IMCA SF 02/04
  • 2 minute read

A mechanic had started a deck air compressor, when the sudden delivery of pressurised air through the delivery hose caused momentary snaking of the hose. 

What happened?

The mechanic acted in a calm manner and switched off the compressor immediately. Fortunately no one was positioned close to the coiled hose, so nobody was injured. Nothing was damaged.

The snaking hose had the potential to cause injury to personnel on deck.

During investigation, it was also noticed that the isolation valve’s handle was missing.

Before starting the compressor, the mechanic had not checked the delivery valves to confirm that these were closed. The missing valve handle had not been reported.

The company involved has issued a safety reminder to its personnel as follows:

World-wide, many serious accidents occur due to snaking hoses. It is, therefore, necessary to follow some simple safety precautions efore and during use of any compressor:

  • Before starting up a compressor, ensure that all air delivery valves are shut
  • Check that all valve handles are secured in place
  • Check condition of hose for any physical damage
  • Check all hose line clamps for tightness, to ensure non inadvertent parting of hoses while in use
  • Check all hose connections are secured with safety rope, to prevent a whiplash/snaking effect if parted
  • Ensure insurance wire is fixed on all quick-release couplings to prevent inadvertent parting of couplings while in use
  • Ensure all hose lines are anchored/secured with rope to fixed structures, to prevent a whiplash effect if parted
  • Know where the compressor’s ’emergency stop’ button is situation and how to use it
  • After use, ensure that air-delivery valves are closed and that the delivery hose is coiled and kept safely
  • Report all unsafe acts and unsafe conditions.

Latest Safety Flashes:

Fingertip crush injury sustained during lifting operation

A rigger sustained crush injuries to several fingertips working on deck during the relocation of a pressure cap

Read more
Stay in the right place – the importance of personal positioning

A member reports two dissimilar events, both of which highlight the importance of ensuring you are not in the wrong place.

Read more
Slipped on stairs, broken finger

A worker slipped while descending the staircase, and broke his finger as a result

Read more
Condensation Hazard on Electrical Panel (440V)

During a recent inspection, condensation water was observed dripping directly onto a 440V electrical panel in the engine room.

Read more
Broken equipment repaired or replaced

A member highlights several cases of emergency equipment being broken or unserviceable.

Read more

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.