1. MODERN METHOD ON ACCIDENT INVESTIGATION V.P.GHOLAP V.LAKSHMAN S.BHATTACHARYA P.K.GHOSH AERB

2. ASSET ASSESSMENT OF SAFETY SIGNIFICANT EVENTS TEAM DEVISED BY IAEA - PREVENTION OF INCIDENTS - NPPS ENSURE CONSISTENCY AND COMPREHENSIVENESS OF THE REVIEW OF INCIDENT INVESTIGATIONS

3. ASSET APPROACH-PHILOSOPY EVENTS – Occur - because of FAILURE - to perform as expected- due to LATENT WEAKNESS - not timely eliminated - (direct cause) DEFICIENCIES OF PLANT SURVEILLANCE PROGRAMME - on equipment, personnel and procedures (root cause)

4. ASSET METHODOLOGY SELECTION OF OCCURRENCES IDENTIFICATION OF DIRECT CAUSE IDENTIFICATION OF ROOT CAUSE DETERMINATION OF CORRECTIVE ACTIONS GENERIC LESSONS

5. ASSET METHODOLOGY -1 SELECTION OF OCCURRENCES –ELEMENT THAT FAILED TO PERFORM AS EXPECTED- TO BE IDENTIFIED

6. ASSET METHODOLOGY-2 IDENTIFICATION OF DIRECT CAUSE –LATENT WEAKNESS OF PERSONNEL, EQUIPMENT OR PROCEDURE

7. ASSET METHODOLOGY -3 IDENTIFICATION OF ROOT CAUSE –DEFICIENCY IN DETECTION OF ERROR AND RESTORATION OF ROOT CAUSE

8. ASSET METHODOLOGY-4 DETERMINATION OF CORRECTIVE ACTIONS GENERIC LESSONS

9. INVESTIGATION STEPS NARRATION OF EVENT BUILD CHRONOLOGICAL SEQUENCE BUILD LOGIC TREE IDENTIFY NATURE OF OCCURRENCES (EQUIPMENT, PROCEDURE OR PERSONNEL)

10. INVESTIGATION STEPS..contd. IDENTIFY DIRECT CAUSE IDENTIFY ROOT CAUSE DETERMINE CORRECTIVE ACTIONS FOR EACH OCCURRENCE ACTION PLAN FOR REMEDY

11. Case Study- Fatal Accident at Kaiga 3&4 Occurrence Narrative: 1Gopal Biswas- electrocuted and succumbed to injury while working with portable power saw for cutting wooden runner batten. 2The job started in an open area in -at 1530 hrs when electrical connection was established for power-saw without the sub distribution board ELCB. 3Before 1720 hrs, rain started and Shri Biswas left the power saw in open in the rain and returned when rain stopped. 4As soon as he switched on the power saw and held it by hand he received electric shock. 5He was shifted to hospital where he was declared dead.

12. Case Study- Fatal Accident at Kaiga 3&4 Chronological Sequence: 1530 hrs work started 1700 hrs- rain started 1720 hrs – rain stopped 1720 hrs – portable saw was switched on and the user suffered electrocution 1730 hrs operator was taken to hospital declared and dead.

13. Case Study- Fatal Accident at Kaiga 3&4

15. Case Study Fatal Accident at Kaiga 3&4

16. APPLICABILITY APPLICABLE TO ANY INDUSTRIAL ACTIVITY WHERE THE INDUSTRY’S MANAGEMENT OR THE RELEVANT REGULATORY BODY WANT TO PREVENT ACCIDENTS AND INCIDENTS. APPLICABLE AS A TOOL OF MANAGEMENT TO HAVE PRACTICAL DAILY CONTROL OF EVENTS AND PREVENTION OF SIGNIFICANT SAFETY RELATED EVENTS.