ML100270167
| ML100270167 | |
| Person / Time | |
|---|---|
| Site: | Oyster Creek, Indian Point |
| Issue date: | 04/28/1969 |
| From: | Mosely N US ATOMIC ENERGY COMMISSION (AEC) |
| To: | O'Reilly J US Atomic Energy Commission (AEC) |
| Shared Package | |
| ML100270165 | List: |
| References | |
| NUDOCS 8111190103 | |
| Download: ML100270167 (2) | |
Text
GO UNITED STATES ATOMIC ENERGY COMMISSION DIVISION OF COMPLIANCE REGION I 970 BROAD STREET NEWARK.
NEW JERSEY 07102 AREA CODE:
201.
TELEPHONE:
645-"
IN REPLY REFER TO:
April 28, 1969 J. P. O'Reilly, Chief, Reactor Inspection and Enforcement Branch, Division of Compliance, HQ INVESTIGATION INTO PIPING ALLEGATIONS AS RELATED TO INDIAN POINT NO. 2
- 1. Several piping assemblies fabricated by Dravo were made up utilizing pipe identified as "Alleghany Ludlum, 8", A-312 HT, Type 304, Sch 40S". This pipe was characterized by a longitudinal weld seam approx imately 1/2" wide with a noticeable weld reinforcement on the 0. D. and a distinct weld bead on the I. D.
Within the technology familiar to the inspectors, it is impossible to weld 8" Sch 40 (.322 wall) pipe without using filler metal, which would preclude these lengths of pipe from meeting the requirements.of ASTM A-312.
It is reported that a technique has been devised to simultaneously weld the I. D. and 0. D. so that SS pipe up /
to Sch 40 in 8" pipe may be welded without filler metal.
A demonstration of the technique has been arranged by Con Ed at the Youngstown Welding Company. Compliance representatives will observe the demonstration on April 29, 1969.
- 2. One welded elbow fitting was identified as "Flowline, 6",
Sch 80S,.432 wall, Type S-316" ----------per Westinghouse Specification G-569866 "Material Specifications for Piping and Fittings"; 6" and 8", Sch 80 SS fittings are required to be seamless, ASTM A-403.
Another elbow fitting was identified as Flowline 2718, 8", Sch 40,.322 wall, A-312 WP-304-W"
Here I again, within the technology familiar to the inspectors,
.322 wall material cannot be welded without fillermetal, the use of which makes the identity of A-312 erroneous.
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- 3. During a comparison of Westinghouse piping specifications with the orders placed by United Engineers and Constructors (UE&C), potential trouble areas were revealed, i.e.:
- a. Westinghouse specifications "prohibit the acid pickling of fabricated piping assemblies" - UE&C purchase spec ifications only require that "pickling solutions used to remove scale, etc. shall not contain HCl or other chloride bearing materials".
- b.
The only documentation covering piping and materials at site are Dravo letters entitled, "Certificate of Compliance", for each shipment, which state that the fabricated items, material used, welding, etc. meet all requirements "to the best of our knowledge and belief."
There is no other evidence, though it was stated that an A/E home office Quality Control repre sentative frequently visits Dravo to review X-rays, material certificates and to conduct general audits of shop processes and fabrication practices.
- 4. During discussions with representatives of the licensee, the A/E, qualitycontrol group, Westinghouse, and the independ-ent testing agency retained by the licensee, there was no evidence presented of a coordinated quality effort covering the reliability of suppliers or the traceability of materials which would preclude the incorporation of substandard' material or components into this facility.
- 5. The above items were discussed by telephone on April 25, 1969 with Mr. Cahill, Asst. Vice President and Mr. Grob, Mechanical Engineer. We told the licensee representatives that we expected them to perform a comprehensive program to verify conformance with specifications of all important systems.
N. C., Moseley CO:I:JHT Senior'Reactor Inspector