Subtitle

Title FORENSIC ENGINEERING The Art of Learning from Failures

Ir. Norul Rafiq bin Namas Khan Technical Expert (Failure Analysis)

Forensic Engineering Group TNB LABS Sdn. Bhd.

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Introduction What is forensic engineering?

Engineering investigation and determination of the causes of equipment related failures or accidents.

Data Driven Decision Making

1.Manpower 2.Accident prevention

1.Maintenance 2.Spare Parts Management

1.Litigation 2.Warranty 3.Insurance

Root Cause Analysis

*Source: ThinkReliability 2019

History

Flight MH370, 2014

Hindenburg, 1937.

SPUR INNOVATION

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General Methodology

INVESTIGATION PHASES

Site Inspection

Non Destructive

Test

Destructive Test

Electrical Stress

Simulation

Root Cause Analysis

Test Hypothesis > Root cause

ACTIVITIES

Involves site inspection, interviews, laboratory teardown examination, laboratory testing and analysis and identification of most possible cause of the failure.

Open mind

Support theories

with evidence.

Integrity in

reporting

IN AN INVESTIGATION OF REPEATED ELECTRICAL JOINT FAILURES, WE LEARN… 1. Insufficiently tightened busbars

experience Ohmic heating. 2. Overtightening also may cause ohmic

heating, HOW? 3. Shortcoming of thermography.

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Key Takeaways

Right mind set to learn and not let good failures go to waste!

Impetus to embrace learning

Negative Emotions

The Bystander Effect

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Thank you.

Norul Rafiq