ML20147F776
| ML20147F776 | |
| Person / Time | |
|---|---|
| Issue date: | 03/17/1997 |
| From: | Steven Baggett, John Lubinski NRC |
| To: | |
| Shared Package | |
| ML20147F746 | List: |
| References | |
| SSD, NUDOCS 9703270200 | |
| Download: ML20147F776 (4) | |
Text
-
i l
REGISTRY OF RADIOACTIVE SEALED SOURCES AND DEVICES-SAFETY EVALUATION OF DEVICE 4
1 MQ1 NR-8082-D-801-S DATE: March 17, 1997 EAGE1 1 OF 3 DEVICE TYPE: Self-Luminous Marker Switch 4
MODEL:
1260Z-185 DISTRIBUTOR:
Dowty Electronics Company 1
Cheltenham 4
Gloucester, England j
j MANUFACTURER:
Saunders Roe Development i
Millington Road Hayes Middlesex United Kingdom i
SEALED SOURCE MODEL:
MH 1132/0/150, Model 1 l
ISOTOPE:
Hydrogen-3 (Tritium Gas)
MAYIMUM ACTIVITY: 44 millicuries (1.6 kBq)
LEAK TEST FREOUENCY Not Required PRINCIPAL USE! (R) Gas Source CUSTOM DEVICE:
Y YES NO CUSTOM USER:
Boeing Company Vertol Division P.O.
Box 16858 Philadelphia, PA 19142 9703270200 911206 i
PDR RC s
SSD PDR 1 i ~ _/ ~
.v u
____.m.__..
t i
REGISTRY OF RADIOACTIVE SEALED SOURCES AND DEVICES
}
SAFETY EVALUATION OF DEVICE i
EQ1 NR-8082-D-801-S DATX1 March 17, 1997-RAriFJ. 2 OF 3 DEVICE TYPE: Self-Luminous Marker Switch
~
l DESCRIPTION:
The source, NH 1132/0/150, Model 1 manufactured by Saunders Roe Development, consists of radioactive tritium gas sealed in a l
clear borosilicate (hard) glass capsula. Dowty Electronics Co.
installs these sources into special holders that Boeing Vertol imports and fits into the handle of toggle switches in the CH-47 aircraft (helicopter). These aircraft are then delivered to the Royal Air Force in the United Kingdom.
j The two switches containing the devices are:
- Battery Emergency Switch (Boeing Vertol Part Number 1260.2.N.1.14C)
- Console Lighting Switch (Boeing Vertol Part Number 1260.1.N.14C)
DIAGRAME:
See Attachment 1.
EXTERNAL RADIATION:
j i
Radiation test data provided by Boeing Vertol shows no detectable radiation levels above background, measured 4 inches (10 cm) from the surface of the device.
OUALITY ASSURANCE AND CONTROL!
- The device meets the United Kingdom Defense Standard, DEFSTAN 62-4.
- The sealed source meets British Standards Institutions Specifications BS 5288:1976 and BS 6002:1979.
Y,TMTTATION ann /OR OTHER CONSIDERATIONS OF USE!
- Boeing Company is no longer using the Model 1260Z-185.
- This registration sheet and the information contained within the references shall not be changed without the written consent of the NRC.
I REGISTRY OF RADIOACTIVE SEALED SOURCES AND DEVICES SAFETY EVALUATION OF DEVICE HQ1 NR-8082-D-801-S DATE: March 17, 1997 RAGE 1 3 OF 3 DEVICE TYPE: Self-Luminous Marker Switch SAFETY ANALYSIS
SUMMARY
Based on our-review of the information submitted, we conclude that the Model 1260Z-185 is no longer being used by Boeing 1
l Company. Therefore, this certificate is being transferred to l
inactive status.
i REFERENCES
- NRC registry document No. 81-18 dated March 19, 1981.
l Boeing Company License No. 37-08428-01
- Boeing Company letters dated November 7,
- 1980, j
August 14, 1991, September 12, 1991, September 27, 1991, and November 12, 1991 with enclosures thereto.
JSSUING AGENCY!
i U.S. Nuclear Regulatory Commission h
Date:
March 17. 1997 Reviewer:
/
Sfeven # Bpggett
/!
fY Date:
March 17. 1997 Concurrence:
Jphn W.
Lubinski l
j I
4 4
T 1
REGISTRY OF RADIOACTIVE SEALED SOURCES AND DEVICES SAFETY EVALUATION OF DEVICE i
EQL NR-8082-D-801-S DATE: March 17, 1997 ATTACHMENT 1 4
(
+
t t
k o
,/...>.
. M.-
'wi, -.
s I
\\
I
P a i v ? T.... Aura 6f.,
. g_
i su o m e n.a c a
- w.. ss:eeo e oss.
D C F1 ?
f
/
o
/
/
/7
'f.
/
/
r i
I 1
1 1
l J
y.g
}' f.. -
3..
3 REGISTRY OF RADf0ACTfVE SEALED SOURCES AtlD DEVICES SAFETY EVALUATIO'l 0F DEVICE U'
- s..
fj0: flR-258-D-101 - 5 DATE:
OCT 6 1982 PAGE 1 0F 1 DEVICE TYPE:
Luminous !!arker Switch 1
!i3 DEL:
12602184 l
1 MA'lVFACTURER/ DISTRIBUTOR:
Dowty Electronics Company Cheltenham Gloucester. Enaland 4
cl r'
MA'lUFACTURER/ DISTRIBUTOR:
Saunders Roe Development i
fiillington Road Hayes liiddlesex United Kingdom
+
4 SEALED SOURCE MODEL DESIGflATION:
!iH 1132/0/150, Model 1 e
I ISOTOPE:
Hydrogen-3 f%XI!iUM ACTIVITY < 44 millicuries hy LEAK TEST FREQUEllCY:
flot Required n 'j.
g-
~,
PEllCIPAL USE: (R) Gas Source
.: ~
'.q}::
s.
- 1 CUST0!4 DEVICE:
X YES fiO o3 h;t' CUSTOM USER:
Boein a
0
=e m3020237-840267 P.O. Box 16858 D
Hart 1ITTB4-74 PDR Philadelphia, PA 19142 k(f,4 l
REFERENCES:
!!RC registry document No. 81-18. dated !! arch 19, 1981.
Boeing Company License No. 37-08428-01 h);
i j
( -[,
,1SSUIN'i AGE' ICY:
ll.S. Nuclear Regulatory Comission l
....w t
1