Safety Flash
Failure to follow gas quad procedure
Failure to follow gas quad procedure
- IMCA
- Safety Flash
- IMCA SF 06/12
- Competence and TrainingControl of WorkDivingPressure Systems
- Human factors
- Saturation diving
- Gas cylinderGas detector
- Competence and trainingOperating and work proceduresPre-use checks
- Vessel
Summary
A saturation diving incident involved air supplied instead of oxygen after ordering errors and incomplete delivery, connection and gas-analysis checks. Automatic metabolic make-up introduced the incorrect gas into the chamber; no ill effects were found. Actions addressed procedural compliance, authorised delivery verification and portable analyser use before connection.
Classifications: Human factors; human performance; ergonomics.
Classifications: Saturation diving; sat diving.
Classifications: Gas cylinder; compressed gas bottle; gas cylinders.
Classifications: Gas detector; gas monitor; gas detection instrument.
Classifications: Competence and training; competency assurance; safety training.
Classifications: Operating and work procedures.
Classifications: Pre-use checks; pre-use inspection.
Classifications: Vessel; aboard ship; onboard vessel.
Summary
Incorrect breathing gas was connected to a saturation diving system after delivery, verification and gas-analysis procedures were not completed.
IMCA SF 06/12. Themes: competence and training, control of work, diving, pressure systems.