United States Nuclear Regulatory Commission - Protecting People and the Environment

Bulletins: 1974 Index

Document Number Title Revision Publish Date Revision Date
BL-74-16 Improper Machining of Pistons in Colt Industries (Fairbanks-Morse) Diesel-Generators -- 12/13/1974 --
BL-74-15 Misapplication of Cutler-Hammer Three Position Maintained Switch Model No. 10250T -- 12/06/1974 --
BL-74-14 BWR Relief Valve Discharge to Suppression Pool -- 11/13/1974 --
BL-74-13 Improper Factory Wiring on General Electric Motor Control Centers at Fort Calhoun -- 10/25/1974 --
BL-74-12 Incorrect Coils in Westinghouse Type SG Relays at Trojan -- 10/21/1974 --
BL-74-11 Improper Wiring of Safety Injection Logic at Zion 1 & 2 -- 10/16/1974 --
BL-74-10 Failures in 4-Inch Bypass Piping at Dresden 2 2 01/24/1975 --
1 12/17/1974 --
-- 09/18/1974 --
BL-74-09 Deficiency in General Electric Model 4KV Magne-Blast Breakers -- 08/06/1974 --
BL-74-08 Deficiency in the ITE Molded Case Circuit Breakers, Type HE-3 -- 07/23/1974 --
BL-74-07 Personnel Overexposure – Irradiation Facility -- 06/26/1974 --
BL-74-06 Defective Westinghouse Type W-2 Control Switch Component -- 05/22/1974 --
BL-74-05 Shipment of an Improperly Shielded Source -- 04/12/1974 --
BL-74-04 Malfunction of Target Rock Safety Relief Valves S1 05/01/1974  
-- 03/22/1974 --
BL-74-03 Failure of Structural or Seismic Support Bolts on Class I Components S1 04/29/1974  
-- 03/22/1974 --
BL-74-02a PWR Main Steam Line Isolation Valves -- 02/22/1974 --
BL-74-002 Truck Strike Possibility -- 01/22/1974 --
BL-74-001a Abnormal Occurrences in Piping Systems -- 01/10/1974 --
BL-74-001 Valve Deficiencies -- 01/03/1974 --
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