05000302/LER-1978-162-03, /03L-0:on 771212,containment Airlock Not Pressure Tested for 771212 Entry.Caused by Failure to Follow Prescribed procedures.SP-443 Revised,Requiring Daily Airlock Pressure Test Regardless of Entry

/03L-0:on 771212,containment Airlock Not Pressure Tested for 771212 Entry.Caused by Failure to Follow Prescribed procedures.SP-443 Revised,Requiring Daily Airlock Pressure Test Regardless of Entry

ML19317G140
Person / Time
Site:	Crystal River
Issue date:	01/18/1978
From:	Stewart W FLORIDA POWER CORP.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
Shared Package
ML19317G138	List: 05000302/LER-1978-162, Forwards LER 78-162/03L-0 05000302/LER-1978-162-03, /03L-0:on 771212,containment Airlock Not Pressure Tested for 771212 Entry.Caused by Failure to Follow Prescribed procedures.SP-443 Revised,Requiring Daily Airlock Pressure Test Regardless of Entry
References
LER-78-162-03L, LER-78-162-3L, NUDOCS 8002270846
Download: ML19317G140 (2)

LER-1978-162, /03L-0:on 771212,containment Airlock Not Pressure Tested for 771212 Entry.Caused by Failure to Follow Prescribed procedures.SP-443 Revised,Requiring Daily Airlock Pressure Test Regardless of Entry

Event date:
Report date:
3021978162R03 - NRC Website

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(SEE ATTACHED SUPPLEMENTARY INFORMATION SHEET)

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SUPPLEMENTA13 INIURMATION s

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Report No.:

50-302/77-1C2/03L-0 2.

Facility:

Crystal River Unit #3 3.

Report Date:

18 January 1978 4.

Occurrence Date:

12 December 1977 (discovered 29 December 1977) 5.

Identification of occurrecca:

The failure to demonstrate the operability of both Conts'=nt airlocks contrary to Technical Specification Surveillance 4.6.1.3.a.

6.

Conditions Prior to occurrence:

Mode 1 operation.

7.

Description of Occurrence:

While reviewing the complaced Containment Entry Surveillance Procedure SP-430, it was discovered that the Data Sheet #1 (Airlock Pressure Test) had not been completed for a Containment entry on 12 December 1977.

Further review indicated that the Containment was entered on 15 December 1977 and the Airlock Pressure Test was satisfactorily performed.

Designation of Apparent Carse:

The cause of this occurrence was the failure to follow prescribed procedures, in that SP-433 requires Airlock Pressure Test be performed daily in Modes 1-4 if the Containment has been entered.

9.

Analysis of occurrence:

There were no safety implications as the results of the complaced Airlock Pressure Test on 15 December 1977 were satisfactory.

10.

Corrective Action

A revision to the Master Surveillance Plan, SP-433, requiring an Airlock Pressure Test be performed daily regardless of Containment entry, has been entered.

11.

Failure Data:

This is the second occurrence of missed Airlock Pressure Test as reported by LER 77-119.

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