ENTERPRISE PRODUCTS OPERATING LLC — Hazardous liquid — incident on 2014-12-30

Hazardous liquid incident in CORPUS CHRISTI, NUECES County, TX. Reported cause: EQUIPMENT FAILURE. Reported consequences: 0 fatalities, 0 injuries, 181 HVL OR OTHER FLAMMABLE OR TOXIC FLUID WHICH IS A GAS AT AMBIENT CONDITIONS released, $2,800 reported property damage. Operator-reported incident data submitted to PHMSA, generally within 30 days. Records may be supplemented or corrected and do not represent final agency causal findings.

Report number: 20150028.

Operator ID: 31618.

Reported incident date: 12/30/2014 16:06.

Location detail: 0

Cause detail: NON-THREADED CONNECTION FAILURE

Cause detail: ON 12/30/2014, MAINTENANCE PERSONNEL WERE PREPARING TO REPLACE A VALVE USING A STOPPLE AND A BLOCK VALVE. WHILE THE WORK WAS BEING PERFORMED, THE STOPPLE SEALING ELEMENT HAD DEVELOPED A SMALL LEAK. DURING THE PROCESS OF RETRACTING THE STOPPLE SEALING ELEMENT FOR REPLACEMENT, THE INSULATION FLANGE GASKET ON THE VALVE BEING REPLACED FAILED BEFORE THE SECOND SEALING ELEMENT WAS INSERTED. THE AFFECTED PIPE SEGMENT WAS ISOLATED AND BLOWN DOWN. THE VALVE INITIALLY BEING REPLACED WAS REMOVED AND REPLACED WITH A NEW VALVE AND NEW INSULATION GASKET. THE INSULATION GASKET WAS NEAR ITS LIFE EXPECTANCY. GASKET AGE COMBINED WITH THE MAINTENANCE WORK RESULTED IN ITS FAILURE.

PHMSA trend classification: significant incident, not serious.

PHMSA standardized cause: EQUIPMENT FAILURE — NON-THREADED CONNECTION FAILURE.

PHMSA indexed costs: $11,400 reported total cost, $5,784.566 in 1984 dollars, $14,245.607 in current-year dollars.

PHMSA trend flags, standardized causes, and indexed costs are analytical fields added to operator-reported incident data. They do not represent final agency causal findings.