ML19308C268
| ML19308C268 | |
| Person / Time | |
|---|---|
| Site: | Crane  |
| Issue date: | 09/17/1979 |
| From: | Traviesadiaz M SHAW, PITTMAN, POTTS & TROWBRIDGE |
| To: | Frampton G NRC - NRC THREE MILE ISLAND TASK FORCE |
| Shared Package | |
| ML19308C269 | List: |
| References | |
| TASK-TF, TASK-TMR NUDOCS 8001220641 | |
| Download: ML19308C268 (10) | |
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SHAw, PITTMAN, PoTTs & TROWBRIDGE 1800 M STR E cT. N. W.
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JAMES THOMAS LENnART -
September 17, 1979
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' George Frampton, Esquire "RC/TMI Special Inquiry Group Nuclear Regulatory Commission Washington, D. C.
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Dear George:
At the meeting held on September 5, 1979, in Camp Hill, Pennsylvania, between representatives of Essex Corporation ("Essex") and Metropolitan Edison Company
(" Met-Ed") operating personnel, the Met-Ed employees were given copies of an eleven-
-page drawing prepared by Essex and depicting in columnar form the actions of Met-Ed operating personnel.during the first one hundred and forty minutes of the accident at Three Mile Island Unit 2.
The Met-Ed employees at the September 5, 1979 meeting were asked to identify any, gross errors they detected in the drawing.
I have received the following corrections to the Essex drawing; please note that the list may not be exhaustive.
[ "" verifies s/g levels coming down on start-up range; verificsmain feed pumps Faus t" column : At 00:14 change " Notices noise in vib. & LP monitor" to
, gW/
bi tripped off".
y At 00:41 add: " notes turbine bypass valves opening" after " notes gov.
^~ 6 valve closed".
At 00:58 add: " checks electrical buses of normal line up; makes decision to leave mn & fw pumps turning gear motors off".
At 1:00 after " notes 10 in'. level on sg A&B" add: makes announcement that generators are not being fed,.could be dry; takes manual control of EP-V11 Dailey stations and tries to throttle; waits to see if there is any change.
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- SHAW, PITTMAN, POTTS O TROW 2 RID 2E George Frampton, Esquire
' September 17,'1979.
Page 2
.At 2:28. insert: " notes Tave os 570 to 580*and increasing; throttles open on EF-Vil;~ waits to see if any effect; still dual indication on EF-V11's; OTSG pressure oscillating around 1000 #; checks s/g down comer temp., seems to be same as Tave; looks at NI's, o.k. but hard to insure decreasing trend; watcher
-chart record".
At 4:38 insert: " throttle open more on EF-V11 A&B".
At 5:15 delete: " points hotwell level off-scale to Zewe".
At 6:58 delete: " attempts to open COV 12 polisher bypass valve".
At 19:00 add: " checks on hotwell, increased off-scale high; secures heater drain pumps; gives out instructions to restore reject line up to normal; checks locally on hotwell level; insures main turbine goes on jacking gear; places main feed ' pumps and main turbine jacking motor controls to auto".
At 36:00 (time not certain) insert: " secures both feedwater heater drain pumps; secures four out of six cw pumps to get atmospheric valves to take control of s/g pressure; manually opens up on Bailey controllers due to reduced capacity of atmospheric valves; place all ICS stations in shutdown lineup except for station being used".
At 75:00 (time not certain) insert: " checks over reactor trip and main steam line break procedures; isolates B steam generator".
At 105:00 insert: " notes increase on NI's; unisolates B s/g to feed it up more; attempts to start RCP's, one started".
-At 112:00 change: "using turb. byp. valve" to "using EF-VilA".
At 115:00 insert:=" talks of increase on NI's.and restart of RCP's; checks over sec'ondary panel".
"Zeve" column : At 00:08 change: " announces reactor trip" to " announces turbine trip and reactor trip".
~At 1:00 delete: "remnests Unit 1 shif t foreman to call sta. mgr.".
c At 1:40 insert: " call Unit'l SS to assist in Unit 2".
At 3:00 insert: "& control pzr-level" after " tells F.S. to monitor pressure"..
At 5:20 delete: " attempts to start cond. >oost 2B trips again".
-At 15:00 change:
goes to aux. blig..." to "goes to turb. bldg.".
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CHAW, PITTMAN, POTTS G TROWORID2E George Frampton,'. Esquire September 17, 1979-
. Page 3 "Scheimann" column: At'00:00, insert: "in turbine building basement trying to clear clogged resin transfer line at polishers".
At 00:09 insert: "en route to control room".
At 3:30 insert: "still monitoring system pressure and trying to control pressurizer level by adjusting letdown flow".
At 18:00 insert: "still trying to control pressurizer level and observing system pressure".
At 36:00 insert: "still at pressurizer control. station".
1 At 54:00 insert: "still at pressurizer control station".
At 72:00 insert: "still at pressurizer control station".
At' 90:00 insert: "still at pressurizer control station".
At 138:00 insert: " closed emov block valve at suggestion of Brian Mehler".
Sincerely, Matias F. Travieso-Diaz MFTD:ry b
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