ML20062J323

Response in Opposition to Motions for Summary Disposition of Airplane Crash issue.Full-scale Tests Must Be Conducted to Show Effect of Radiation on Solid State Electronics.W/ Certificate of Svc Encl

ML20062J323
Person / Time
Site:	Allens Creek File:Houston Lighting and Power Company icon.png
Issue date:	10/02/1980
From:	Jeffrey Scott TEXAS PUBLIC INTEREST RESEARCH GROUP
To:
References
NUDOCS 8010100066
Download: ML20062J323 (7)

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I. A50- Offceto of Radiation on Airplane electronics Tex LIRG haa submitted its own motion for cummary disposition for thic contention. The facta documentod there show that therc is at leact matcrial fact icaues still in debate. That motion is to be concicered ac 7 art of thic recronse.

The major problem of the Arplicant 3 a motion is that it does not undcrutcad the contention and therefo .e responds in the wron; rray.

. clicant trios to claim that the contention is that the nuclear plant produces ionc in tho air which otic't to the antennas of the plane caucing the electric ficlas near the antenna ,to be altered and thus cauuinc interforcnce in the electronic Guidance cyctoma. Their rem onuo to that theory,in cencral, correctly cho"c that it does not l ac.ka acnco.

batchinc ia en electronic circuit or device condition that occur: then the colid ctato Ccvice cuch as trancictor, uiado, memory, etc. beconec loches into the wronc ctate becauce of dana;c to the

, comicon'uctor Ccvico. Hont modern :levice are digital, ie they uce the binary, O cnc 1 nu:aber cy.3 tem, method o f .rococcing inform-ation. If by como nothed , cuch aa nuclear radiation, the tiny solid utate Jovice becomec danaced co that it reads a O then it chculd read a1 then tho sui'?ance cyatom can fail to ;roperly indicato altitudo,

'o" , etc co that a crach in lihcly to ha?;en. Of course when many j cuch colla stato Covices aro un ocod to the radiation many devicos "lill fail hich ctill further increacos the :robability that the 1cno :111 cr:ca. In summary "latchin;" is when the device 10 locked into tho wrons digital state. -

The information already presented in the Tex PIRG cotion for cuamary Cic;ocition of thia contention documcnta ho'7 cencitivo both bi olar (.-n junction devicca) and iE3 (metal oxide ceniconductor) clectronic c evicec cro to even low level radiation (not ionc).

Au to each of the Material Iccuou, rex PIRG roc-ende ac follona; 1 The contention has nothing to do with ionc in the air. Sven if they

";cro talhin; about nuclear radiation effects in colid state devices; i the fact that it nac not ;reviously dccuaentated would not affect the validity of the contention. The TM1 accident nac not documented before it ha):,ene? cither. "cre the plane that crashed rac a military plano and tho military will not releaco the cauce of the accident.

2 There ic unch

:u; port for the contention raiced by Tex PIRG. Come af it hac bacn acntio'm in our M0J such as I' age 10 of G2 Trenaistor Manual an i , ace M4 o f Troc. I?.72. MRC sail that Clacs 9 could not ha _cn. ._

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i 8010100 6 6 6 i

PNO-TM1-80-45 (cont) 2 September 16, 1980

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