“Educational Series Based on IMO Resolution A.951(23)”
Why Fire Extinguishers Must Be Inspected (A.951(23))
A fire at sea doesn’t come with a warning. And when it hits, a functional fire extinguisher isn’t a luxury — it’s your last line of defense.
IMO Resolution A.951(23) requires that portable fire extinguishers on ships be periodically inspected, tested, and maintained by competent personnel to ensure reliability and effectiveness.
Key reasons:
- The marine environment accelerates corrosion and damage.
- External appearance doesn’t guarantee functionality.
- Non-compliance leads to detention and legal risk.
Bottom line: It’s not just about passing audits. It’s about surviving emergencies.
Types of Fire Extinguishers Used on Ships — And Why They Matter
Each extinguisher serves a different purpose:
- Dry Powder (ABC Type)
- Versatile: works on solids, liquids, and electrical fires
- Leaves corrosive residue, not ideal in machinery spaces
- CO₂ (Carbon Dioxide)
- Excellent for electrical fires, especially in engine rooms
- No cooling effect — fire may re-ignite
- Foam (AFFF)
- Effective on flammable liquid fires (e.g., galley, pump rooms)
- Not for electrical fires
- Water Mist or Spray
- Ideal for accommodation areas
- Dangerous on electrical/oil fires
Remember, wrong extinguisher = uncontrolled fire. Know your types. Use them wisely.
Inspection vs. Maintenance — What’s the Difference?
Many crew confuse inspection with maintenance. That’s a dangerous mistake.
- Inspection:
- A basic visual and physical check.
- You look for: pressure gauge issues, rust, missing seals, or damage.
- Maintenance:
- Goes deeper: disassembly, refilling, hydrostatic testing, part replacements.
- Must be done by certified technicians.
Visual checks ≠ operational readiness. Don’t assume. Know the difference.
How Often Should Fire Extinguishers Be Checked Onboard?
Frequency matters and it’s regulated.
- Monthly (by crew) : Check pressure, seals, visibility, no blockage.
- Annually (by certified technician) : Full functional test, documentation.
- Every 5 years (sometimes 2) : Hydrostatic pressure testing, depending on type and flag rules.
Always follow:
- Manufacturer’s guidelines
- PMS (Planned Maintenance System)
- Flag & Class regulations
What Happens If You Don’t Comply with A.951(23)?
Ignoring this regulation isn’t just risky, it’s expensive and dangerous.
- Consequences include:
- Port State Control detention
- Insurance claims denied
- Loss of class or flag approval
- Increased risk of onboard fatalities
- And worst of all: Your extinguisher might fail right when it’s most needed.
