ML20024B917

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Notes on Miscellaneous Events
ML20024B917
Person / Time
Site: Crane  
Issue date: 07/31/1978
From:
BABCOCK & WILCOX CO.
To:
References
TASK-11, TASK-GB B&W-4003, NUDOCS 8307110790
Download: ML20024B917 (1)


Text

e 3o yll2gl 6EENDdNTS EXHIBIT Main Feed Pump - Many Probs.

u. S. DIST. COURT l

Q t

S. D. OF N. Y.

Vibration Alignment Piping Support 6

7/16 Mode 3

~

i ore Flood -

aGaledittW' Hitting Decay Heat check valve stayed open,Twice.- stop check valve 8/12 Initial criticality 8/20 Initial Opwr physics test EDractimeterFailurescauseddelap is Mode 1N. (>50 were on 1 hr 10 '

on'line for accountants K

~

/1 Mode 1 9

9/14 CRDM Stator failures

p..

eed Rupture Control Sys g m

9/20-9/24 SFRRS trip


> Rupture Disc on Quench Tank Blew pressure went to Sat Electromaticreliefvalvehadstuckooenh conditior I

Pr.r level indications all reading full, 4

Bad components Aux FW

- Bodeen motor I

on Governor. -

~

Binding

- stopped 9 2600 rpm EM relief Pilot stem stuck in open position, clearance too small Boron crystals cause sticking

. Discovered second time y Stroke too lone.

O 10/24 Second SFRCS trin.

Found bad components then 10/29 Main Feed Pump Imoeller came apart.

DeLaval Do have vibration detectc,r but only 1 annunciator in Control Room 8307110790 780731 Bad detector meant saw nothing.

PDR ADOCK 05000289 j

P HOL

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