A study on human errors related to NPP maintenance activities

Pekka Pyy; Kari Laakso; Lasse Reiman

doi:10.1109/HFPP.1997.624871

A study on human errors related to NPP maintenance activities

Pekka Pyy, Kari Laakso, Lasse Reiman

VTT Technical Research Centre of Finland

Radiation and Nuclear Safety Authority (STUK)

Research output: Chapter in Book/Report/Conference proceeding › Conference article in proceedings › Scientific › peer-review

9 Citations (Scopus)

Abstract

This experience-based study on human errors in nuclear power plant (NPP) maintenance used about 4400 maintenance history records and licensee event reports of an NPP from the years 1992-94 as its material. The aims of the study were to identify common cause failure mechanisms, allow statistical treatment and generate numerical safety indicators. About 30 dependent failures were identified for in-depth root cause analyses. The instrumentation is very prone to human errors. Most errors stem from the refueling outage period, and about half of them were identified during the same outage. Plant modifications are an important source class. Enhanced coordination and review, post-installation checking and start-up testing programs of these projects might decrease the amount of dependent errors.

Original language	English
Title of host publication	Proceedings of the 1997 IEEE Sixth Conference on Human Factors and Power Plants, 1997
Subtitle of host publication	Global Perspectives of Human Factors in Power Generation
Publisher	IEEE Institute of Electrical and Electronic Engineers
Number of pages	6
ISBN (Print)	0-7803-3769-7
DOIs	https://doi.org/10.1109/HFPP.1997.624871
Publication status	Published - 1997
MoE publication type	A4 Article in a conference publication
Event	1997 IEEE 6th Conference on Human Factors and Power Plants - Orlando, United States Duration: 8 Jun 1997 → 12 Jun 1997

Conference

Conference	1997 IEEE 6th Conference on Human Factors and Power Plants
Country/Territory	United States
City	Orlando
Period	8/06/97 → 12/06/97

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10.1109/HFPP.1997.624871

Cite this

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title = "A study on human errors related to NPP maintenance activities",

abstract = "This experience-based study on human errors in nuclear power plant (NPP) maintenance used about 4400 maintenance history records and licensee event reports of an NPP from the years 1992-94 as its material. The aims of the study were to identify common cause failure mechanisms, allow statistical treatment and generate numerical safety indicators. About 30 dependent failures were identified for in-depth root cause analyses. The instrumentation is very prone to human errors. Most errors stem from the refueling outage period, and about half of them were identified during the same outage. Plant modifications are an important source class. Enhanced coordination and review, post-installation checking and start-up testing programs of these projects might decrease the amount of dependent errors.",

author = "Pekka Pyy and Kari Laakso and Lasse Reiman",

year = "1997",

doi = "10.1109/HFPP.1997.624871",

language = "English",

isbn = "0-7803-3769-7",

booktitle = "Proceedings of the 1997 IEEE Sixth Conference on Human Factors and Power Plants, 1997",

publisher = "IEEE Institute of Electrical and Electronic Engineers",

address = "United States",

note = "1997 IEEE 6th Conference on Human Factors and Power Plants ; Conference date: 08-06-1997 Through 12-06-1997",

}

Pyy, P, Laakso, K & Reiman, L 1997, A study on human errors related to NPP maintenance activities. in Proceedings of the 1997 IEEE Sixth Conference on Human Factors and Power Plants, 1997: Global Perspectives of Human Factors in Power Generation. IEEE Institute of Electrical and Electronic Engineers, 1997 IEEE 6th Conference on Human Factors and Power Plants, Orlando, Florida, United States, 8/06/97. https://doi.org/10.1109/HFPP.1997.624871

A study on human errors related to NPP maintenance activities. / Pyy, Pekka; Laakso, Kari; Reiman, Lasse.
Proceedings of the 1997 IEEE Sixth Conference on Human Factors and Power Plants, 1997: Global Perspectives of Human Factors in Power Generation. IEEE Institute of Electrical and Electronic Engineers, 1997.

Research output: Chapter in Book/Report/Conference proceeding › Conference article in proceedings › Scientific › peer-review

TY - GEN

T1 - A study on human errors related to NPP maintenance activities

AU - Pyy, Pekka

AU - Laakso, Kari

AU - Reiman, Lasse

PY - 1997

Y1 - 1997

N2 - This experience-based study on human errors in nuclear power plant (NPP) maintenance used about 4400 maintenance history records and licensee event reports of an NPP from the years 1992-94 as its material. The aims of the study were to identify common cause failure mechanisms, allow statistical treatment and generate numerical safety indicators. About 30 dependent failures were identified for in-depth root cause analyses. The instrumentation is very prone to human errors. Most errors stem from the refueling outage period, and about half of them were identified during the same outage. Plant modifications are an important source class. Enhanced coordination and review, post-installation checking and start-up testing programs of these projects might decrease the amount of dependent errors.

AB - This experience-based study on human errors in nuclear power plant (NPP) maintenance used about 4400 maintenance history records and licensee event reports of an NPP from the years 1992-94 as its material. The aims of the study were to identify common cause failure mechanisms, allow statistical treatment and generate numerical safety indicators. About 30 dependent failures were identified for in-depth root cause analyses. The instrumentation is very prone to human errors. Most errors stem from the refueling outage period, and about half of them were identified during the same outage. Plant modifications are an important source class. Enhanced coordination and review, post-installation checking and start-up testing programs of these projects might decrease the amount of dependent errors.

U2 - 10.1109/HFPP.1997.624871

DO - 10.1109/HFPP.1997.624871

M3 - Conference article in proceedings

SN - 0-7803-3769-7

BT - Proceedings of the 1997 IEEE Sixth Conference on Human Factors and Power Plants, 1997

PB - IEEE Institute of Electrical and Electronic Engineers

T2 - 1997 IEEE 6th Conference on Human Factors and Power Plants

Y2 - 8 June 1997 through 12 June 1997

ER -

A study on human errors related to NPP maintenance activities

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