foreign material management bill corcoran, nuclear safety review concepts corporaton © 2003 bill...
TRANSCRIPT
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Foreign Material Management
Bill Corcoran,
Nuclear Safety Review Concepts
Corporaton
© 2003 Bill Corcoran , all rights reserved
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Foreign Material Management
It’s a lot more than just foreign material exclusion (FME)
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Foreign Material
Any material that by: Quantity or nature, and Location
Was not accommodated in the design
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Programmatic Involvement In Consequential Nuclear Power Events
Reactivity management (Chernobyl, SL-1, Windscale)
Foreign material management (FMM)
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Famous FMM Events TMI-2 ~ LOCA (water in
an air system) Salem-2 ~ destructive
turbine overspeed (particulates in control oil)
Salem-2 ~ anticipated transient without scram (wrong lubricant hardened and froze RTB)
Cook ~ regulatory shutdown (fibrous material in containment)
LaSalle service water (injection of sealant in service water tunnel)
Fermi-1 ~ core damage (component adrift in reactor)
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Famous FMM Events
Point Beach (frazile ice)
Salem (river grass) Davis-Besse (did not
find source of FM in containment)
St. Lucie (jellyfish) Columbia (foam
fragments were FM)
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Other FMM Events
Concorde Titanic Surgical Items left in patients
(thousands) Trojan Horse Davis-Besse Sump Screens
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Other FMM ExperiencesStation FM Event Consequences
Beaver Valley Leak sealant injected into aprimary system
Inoperable ReactorHead Vent System
Turkey Point Rag in a lube oil sump triggered asearch for generic implications
Delayed start-up
Cook Snow and ice plugged a tankgoose neck vent
Tank implosion
Doel,Haddam Neck
Debris created by machiningoperations
Widespread coredamage
Peach Bottom Rigging in Core Spray System(Trojan Horse FM event!)
Core Spray inop,major cleanup andtest
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Other FM Experiences (cont.)
Station FM Event ConsequencesMaine Yankee Machine oil contained a forbidden
substanceDelayed sleevingproject
Salem Management of a foreign materialintrusion
$500,000 civilpenalty
Susquehanna Sand blast grit ingested by a dieselengine
Unavailability andre-overhaul ofdiesel
Calvert Cliffs Uncontrolled FMM measures Imploded a largetank
Cook Assorted FM in Ice Condenser Part of $500, 000civil penalty
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FM Events
FM Damage FM Near Misses (Intrusions +) FMM Compromises FMM Infractions and Deviations
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The Foreign Material Management Occurrence Pyramid
FMM Damage~1
FMM Near Misses~10
FMM Compromises~100
FMMInfractions/Deviations~1000
Higher seriousness points to command accountability issues
Lesser seriousness points to process issues
© 2003, William R. Corcoran, NSRC Corp., 860-285-8779, [email protected] are near misses
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FMM Damage
FMM Damage
FM Damage FME DeviceDamage
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FME Damage
FME DeviceDamage
Implosions Other Damage fromFME Devices
Cooling Lubrication Other?
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Collapsed Demineralized Water Storage Tank at Calvert Cliffs
FMM Damage
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Some Debris Collected From Ice Condenser at Cook Nuclear Plant
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Non-nuclear FM Events
Bhopal (water in MIC tank) Herald of Free Enterprise (water) ValuJet 592 (oxygen generators) “Chunnel” Fire (burning cargo) “Concorde” (loss of aircraft) 9-11-01 (box cutters)?
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Your favorite FMM snafus...
Here Elsewhere
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Foreign Material ~ A Little Bit Goes A Long Way
Procedures can only prevent the repetition of the types of FMM events that have occurred
FMM education is necessary to prevent new types of FMM events
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Foreign Material Management
Not just a signs and tags...
A way of doing business
Foreign Material
Exclusion Area
Foreign Material Exclusion Area
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FMM Includes Control of FM production Control of FM access to buffer areas In FM buffer areas and danger areas:
FM inventory control FM physical control
FM removal before closeout FM exclusion Controlling the adverse side effects of FME
measures
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FMM Includes (cont.)
Detecting FM compromises Detecting FM intrusions Control of intruded FM Removal of intruded FM Analyzing potential future effects of
intruded FM Disposition of intruded FM Configuration tracking of intruded FM
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Foreign Material Exclusion (FME)
FME
An important part of FMM
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FMM Success
P reven tion C on tro lo f A d verseE ffec ts o f
C ou n term easu res
D etec tion L im ita tion
R em ova l M itig a tion
F M MS u ccess
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FM Prevention
B u ffe rA reas
D an g erA reas
C on tro l o fF M
P rod u c tion
B u ffe rA reas
D an g erA reas
In ven to ryC on tro l
F MC on tro l
B u ffe rA reas
D an g erA reas
D etec tin gC om p rom ises
B u ffe rA reas
D an g erA reas
F MC lean u p
F M Efrom D an g er
A reas
F MP reven tion
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Control of Adverse Effectsof Countermeasures
A ssessm en to f
P o ten tia lE ffec ts
C on tro l o fC on d it ion s
D u rin gU se
A ssu ran ceo f
R em ova l
C on tro l o f A d verse E ffec tso f C ou n te rm easu res
FMM C/M are facility changes that must be controlled.
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Response to Detected FM
Response to Detected FM
Response to Detected FM
StoppingMore FM
StoppingMore FM
Limitationof Transport
Limitationof Transport
Limitationof FM Effects
Limitationof FM Effects RemovalRemoval Assessment
of Effects
Assessmentof Effects
Documentationof FM
Configuration
Documentationof FM
Configuration
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FMM ~ Design Factors Good design may
help filter out foreign material… or mitigate the consequences of a FMM event
But, don’t rely on design factors alone to identify & prevent FMM problems
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Some Places Where FMM Considerations Apply:
Work planning Purchase orders Design engineering Chemistry controls Radiation protection ALARA Pre-job briefings Post-job walkdowns Performance indicators
QC inspections Receipt inspections Alarm response
instructions Operator training Management & tech.
staff training QA audit program Severe weather
walkdowns
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Where FMM Does Not Apply
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FMM Program Organization
Sponsor (Director, Site VP or Plant Manager)Owner (Maintenance Dept. Head)
Manager (Senior technical person)
FMM Infrastructure
InvolvementInvolvement
OversightOversight
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Where Is Our Foreign Material Management Program?
Is it narrowly focused on FME? Is it owned by a senior
“FMM Zealot”? Does it include
education as well as procedures? Do key managers support our FMM
program as if their careers depend on it?
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Where Is Our Foreign Material Management Program? (cont.)
Does Operations support our FMM program as if the health and safety of the public depends on it?
Can our corrective action database give a good picture of the status and adequacy of our FMM program performance?
Are our senior managers good FMM role models? Do they “walk the talk”?
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Where Is Our Foreign Material Management Program? (cont.)
Does our Plant Operations Review Committee give our FMM program the attention it deserves?
Has our executive level nuclear safety committee held a review of our FMM program performance?
Has our independent oversight organization audited the status and adequacy of our FMM program performance?
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Find Any Pockets of FMM Program Non-participation?
Clean them out!
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Questions?