ForgeShiftCompass
Maintenance and ReliabilityPractice A4

Machine FMEA (MFMEA)

A Machine Failure Mode and Effects Analysis lists every way a machine can fail, scores the risk, and assigns corrective actions — so the highest-risk failures get attention first.

  • Assessment4 questions
  • Templates2
  • Root causeISHIKAWA-6M

What world-class looks like

All critical equipment has a live MFMEA with RPN scores, corrective actions assigned, and re-assessment after any significant failure.

How mature is your operation?

These are the questions Compass asks for this practice, and the levels it scores you against.

Machine function identification

Documenting what each critical machine is designed to do.

Have you documented what each critical machine is designed to do (its functions)?

Level 1 → 5World class at level 4

  1. No formal documentation of machine functions
  2. General understanding — not written down
  3. Basic operational description exists
  4. Formal function list per machine used in maintenance planningWorld class
  5. Machine functions documented in MFMEA with performance standards

Failure mode cataloguing

Systematically listing how each machine function can fail.

Have you systematically listed what can go wrong with this machine (failure modes)?

Level 1 → 5World class at level 4

  1. No formal failure mode list
  2. Informal knowledge held by experienced techs
  3. Historical failure records exist but not structured as failure modes
  4. Failure modes documented for major systems of the machineWorld class
  5. Comprehensive MFMEA with failure modes for all functions

RPN risk prioritisation

Severity × Occurrence × Detection scoring per failure mode.

Do you assess the Severity, Occurrence, and Detection (SOD) of each failure mode?

Level 1 → 5World class at level 4

  1. No formal risk assessment
  2. Informal severity ranking by experience
  3. Basic criticality rating (high/medium/low) for some failures
  4. SOD scoring and RPN calculated for significant failure modesWorld class
  5. Full RPN matrix reviewed and updated after every significant failure

Corrective action tracking

Owned, dated corrective actions for every high-RPN failure mode.

Do high-risk failure modes have assigned corrective actions with owners and due dates?

Level 1 → 5World class at level 4

  1. No corrective action tracking
  2. Actions discussed but not formally tracked
  3. Action list maintained in a spreadsheet
  4. Actions tracked in CMMS or project tool with owners and datesWorld class
  5. Actions tracked, verified, and feed back into updated MFMEA

Where to start

  • MFMEA workshop + live document

    Maintenance · L2→L3 · Medium complexityCloses · Failure mode cataloguing
  • AI-pre-populated MFMEA for your equipment

    Maintenance · L1→L2 · Low complexityCloses · Machine function identification
Root-cause methodISHIKAWA-6M

Before this, you need

Next steps

Scoring your operation against Machine FMEA (MFMEA) takes a few minutes and needs no account.