ML19261E850
| ML19261E850 | |
| Person / Time | |
|---|---|
| Site: | Crane  |
| Issue date: | 02/14/1968 |
| From: | Grimes B US ATOMIC ENERGY COMMISSION (AEC) |
| To: | Boyd R US ATOMIC ENERGY COMMISSION (AEC) |
| References | |
| NUDOCS 7910170893 | |
| Download: ML19261E850 (4) | |
Text
I 1
Ecger S. Ecyd, Assistant Cirector Fetrucry 14, l'. -e?
for Eeactor Fro;ects, I?1 (Bru) Charles G. Leng, Chief, EFE-3, LF1 Irien K. Grices, EP -3, EEL Y_2TILG **'ITH ECPCLI"G.N EDI2CH CN PECXIyITY CF 5EEE MILZ I2UC STATICU TO CLv.3TED AI??CPT - LCCIT SC-P On February 3,1$63, e meeting was held in the H Street cffices with representatives of the Metropolitan Ediscn Ccepany to discuss the prcximity of the preposed Eree Mile Island Nuclear Statien to 01=sted Airpcrt,. A list of neeting attendees is attached.
Mr. Price stated that he felt that the reccrd ves veak with respect to the airport prcximity question and that the question should te explcred with the state and FAA authorities.
A 1rief presentatien was cade ly Mr. Lcve en the pro'.atilities of en aircraft strike at the site which were stated to te etcut ene chance in 250,0C0 cver the life of the plant.
Mr. Ecddis then stated that the applicant would ackncvledge that the probabilities were higher here than at cther sites, although still very s=all, and that the spplicant was villing to say that the facility could be desi(ned to withstand a "reascnalle" aircraft crash, he propcsed criterion vculd te:
"Be plant vill te designed such that in the event of a strike by a four engine jet aircraft of approzizately 3CO,CCC lts at about 200 knots and an ensuing fire, the plant can te shut devn and maintained in a safe condition. Eequired protecticn vill te afforded ty physical separation, concrete terriers, fire volls, and firefighting equip =ent end building design to prevent less of function of required cocperents due to impact, fire and s:cke from the crash.
(Se plant design vill assure that the physical separation of the water and power supply will protect the availability to the plant of required vater and power. )"
Mr. Poddis stated that the applicant vould sutmit bcth a pretability and an i= pact analysis. Se sut=ittal vould include evidence that (1) there is a higher protability of a crash at the Three Mile Island site than ether reacter sites although the pretability is very lev, (2) the pretatility of an engine falling frca a high flying plane is no higher at this site then at other sites, and (3) that the facility can withstand the impact and fire effects of a typical large ec:=ercial aircraft (this vill te illustrated by irpect calculatiens en the centrel reem and centainment building and by en enelysis cf the treak of all stea-1 lines). A target date cf ietrtary 23,,lst5a vas set fer sut=itta'.
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te applicant described the method prepcced fer une in i-pset calculaticn:
and cur ccnsultant, y.r. J. Prectcr, cc= tented thst net cnly irpect l' t explcsien overpressure, rissiles frcc fuel e :plcaicns, and the ecur:e el fires cheuld te censidered.
Frcs infermaticn supplied infer rally at the meeting en circraft accidents in the years 1C62, lE63, and 156h (cepy attached), the felleving in-fernsticn can te deri<ed. Cf 223 (fatal end ncn-fstal) crashes durin:;
3 years etcut LC) cccurred cff the airpcrt. Of the E6 cccurring cff the airpcrt the felleving breakdevn can te =ade:
Total Cff 4 cf Crashes Off Airpe-t Airncrt Within 1 tile 1 to 3 miles 3 to > 211es Cutsiue 5 211 u C6 15%
k%
72%
Although the frequency of accidents does not very greatly with distance frec the airport within 5 miles, the pretability of a strike en a EiVCD an a does go devn rapidly outside 1 mile. Be probability per unit erec in the 1-to 3-mile radius is ateut 1/15 that within 1 =ile cf the air-port. Le pretability per unit area in the 3-to 5-mile radius is alcut 1/45 that within 1 nile of the airpert. Re maJerity cf the accidents occurring off the airport were mere than 5 miles away but these were not trcken devn further in the material obtained. he statistics apparently list the aircraft location at the time of the cccurrence, and a sub-sequent safe landing was made in many cases.
It is =y cpinien that the applicant can pretably shev that prctecticn frc:s aircraft impact can be previded by divercificatien of equipment and by protecticn cf vital cccpenents. Protecticn free fires, explcsiens and seccudary missiles, in my cpinicn vill te very difficult te provide.
Se farthest we vill pretably te alle to go in this regard is a statement that:
"The applicant has dent p:ed the f acility to withstand the impact cf a large ccc=ercial aircraft ty diversifying equip-ent 1ccatiens and 17 protecting certain vital equiptent such es the contrcl roon in concrete structures. We agree that the facility can te designed to safely with-stand the impact cf the large craft analyzed and that a renscratle degree cf protection has been previded to assure that sufficient vital equip-
=ent will survive sutsequent fires and explcalens to safely shut devn the plant. "
Attach =ents:
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ATmE'! DANCE LIST METECPCLI2C EDISCH EETE!G February 8, 1968 AEC Gilbert Associates H. Price C. Eitting M.
Mann D. Croneburger P. Mcrris W. Traf'Is
?. Ecyd W. Shields C. Long C. Cbcld (former pilot)
- 3. Grimes
- 5. Shapar J. Proctor (Naval Crdnance Lab. )
Met. Ed.
E&W L. Poddis W. Eeisel G. Eier:an R. Ryan
_0thers W. Lcve (Pickard & Love)
G. Charncff (Shaw, Pittman, etc.)
(482 348
9 s
i AIIWORT PHOXIMI'iY U. G. AIR CAERIEJtS TtYrAL OPFRATIONS 1962 - 1964 In 196 [ !
1%)
Cumulative Accidents Cumulative Accidents Cumulative Accidents ggt Proximity
$ of Total Total Fatal Nanfatal T, of Total Total Fatal Nonratal
"$ of Total Total Fatal llonra.
68.6 1.8 2
16 54.5 12 6
36 60.3 47 3
48 On airuort...
1 O
1 O
O O
O.
O O
On seaplane base.
,O O
O O
O O
1 O
1 On heliport.
O O
O O
O O
O O
O On tearge/ ship / platform (helicopter).'..
54 3
0 3
62.d 2
1 l'
8 71.14 2
2 0
In traffic pattern.
63. 1 1
O 1,
72.9 1
O 1
58.le O
O O
6 Within 1/l+ mile..
s 72.9 0
0 0
58.16 O
O O
65.le 1
0 l
Within1/2 mile.
Within 3/4 mile..
74.3 1
O 1
58.4 O
O O
65.h O
O O
74.3 0
0 0
61.0 2
0 2
65.h O
O O
Within 1 mile..
74.3 O
O O
64.9 3
1 2
66.7 1
1 O
Within 2 miles.
75.7 1
1 0
66.2 1
1 0
69 2 2
1 1
Witnin 3 miles..
Wit hin la miles..
75.7 O
O O
66.2 O
O O
69 2 O
O O
75.7 O
O O
67.5 1
O 1
71.8 2
1 1
Within 5 miles.
k k;1e T-k 16 5
O lt z y-g
- 2. o ts 1g
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!b.ed on the analysis of 70 accidents, 10 of which weri.%tal.
CIVII. AENONAttflCS DOARD P/
IM:. ?d on the analysis of 77 accidents, 13 of which were fatal.
bUkF.AU OF SAFt71Y j
bared on the analysis of 78 accident s,13 of which were fatal.
13 23.8 l
s N-f./Ja O
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