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Forwards LER#78-019/01T-0,#78-023/01T-0,#78-024/01T-0, #78-025/01T-0, & #78-026/01T-0.

Accession Number: ML112760132

Date Released: Thursday, September 15, 2011

Package Contents

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• ML112760131 - Forwards LER#78-019/01T-0,#78-023/01T-0,#78-024/01T-0, #78-025/01T-0, & #78-026/01T-0. (2 page(s), 11/22/1978)
• ML112760133 - LER#78-019/01T-0 on 781014:while performing local leak rate test,"D" outboard MSIV,AO-2-86D was leaking in excess of Tech Spec 4.7.A.2.f.Caused by scratch on main seat.Seats lapped & valve retested satisfactory. (1 page(s), 11/22/1978)
• ML113480141 - LER#78-023/01T-0 on 781014:while performing local leak rate test "A" outboard MSIV,AO-2-86A was leaking in excess of T.S.4.7.A.2.f.Caused by bent valve stem & worn lower guide rib.Valve stem replaced & lower guide rib rebuilt. (1 page(s), 11/22/1978)
• ML112760134 - LER#78-024/01T-0 on 781020:during local leak rate test HPCI- 9,turbine exhaust line check valve was leaking in excess of T.S.4.7.A.2.f.Caused by accumulated dirt on seating surfaces.Seats cleaned,lapped & retested satisfactorily. (1 page(s), 11/22/1978)
• ML112760135 - LER#78-025/01T-0 on 781021:during local leak rate test,RCIC- 9,RCIC turbine exhaust line check valve was leaking in excess of T.S.4.7.A.2.f.Caused by accumulated dirt on seating surfaces.Seats cleaned & retested satisfactorily. (1 page(s), 11/22/1978)
• ML112760136 - LER#78-026/01T-0 on 781022:during local leak rate test,MO- 2397 & MO-2398,reactor cleanup isolation valves were leaking in excess of T.S.4.7.A.2.f.Caused by excessive packing gland leakage & improper torque/limit switch settings. (2 page(s), 11/22/1978)