05000302/LER-1979-065-03, /03L-0 on 790711:while in Mode 3,Loop HPI Flow Transmitter B Discovered Out of Calibr During Surveillance Procedure SP-414.Caused by Instrument Drift. Transmitter Recalibr & Returned to Svc

/03L-0 on 790711:while in Mode 3,Loop HPI Flow Transmitter B Discovered Out of Calibr During Surveillance Procedure SP-414.Caused by Instrument Drift. Transmitter Recalibr & Returned to Svc

ML19242C398
Person / Time
Site:	Crystal River
Issue date:	08/02/1979
From:	Cooper J FLORIDA POWER CORP.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
Shared Package
ML19242C393	List: 05000302/LER-1979-065, Forwards LER 79-065/03L-0 05000302/LER-1979-065-03, /03L-0 on 790711:while in Mode 3,Loop HPI Flow Transmitter B Discovered Out of Calibr During Surveillance Procedure SP-414.Caused by Instrument Drift. Transmitter Recalibr & Returned to Svc
References
LER-79-065-03L, LER-79-65-3L, NUDOCS 7908100351
Download: ML19242C398 (2)

LER-1979-065, /03L-0 on 790711:while in Mode 3,Loop HPI Flow Transmitter B Discovered Out of Calibr During Surveillance Procedure SP-414.Caused by Instrument Drift. Transmitter Recalibr & Returned to Svc

Event date:
Report date:
3021979065R03 - NRC Website

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SUPPLE'4ENTARY INFORMATION l. Report No. 50-302/79-065/03L-0 2. Facility: Crystal River Unit 13 3. Report Date: 2 August 1979 4. Occurrer.ce Date: 11 July 1979 5. Identification of Occurrence: One high pressure injection system flowpath ineperable contrary to Technical Specification 3.5.2. 6. Conditions Prior to Occurrence: Mode 3 Hot Standby 7. Description of Occurrence: At 1730, it was reported that "B" Loop HPI Flow Transmitter, MU-23 DPT-1, was found out of calibration during the performance of High Pressure Injection Flow Verification Test, SP-414

4aintenance actions were initiated and operability was restored.

8. Designation of Apparent Cause: The cause of this event is attributed to instruaent drift. 9. Analysis c,f Occurrence: No effect upon the plant or general public as the Redundant Emergency Care Cooling System was operable. 10.

Corrective Action

ST-23 DPT-1 was recalibrated and returned to service at 2030. No further corrective action rcquired. 11. Failure Data: This is the first occurrence of the type reported. l) bb3 l }}