TENNESSEE GAS PIPELINE COMPANY — Gas transmission and gathering — incident on 2013-08-16

Gas transmission and gathering incident. Reported cause: CORROSION FAILURE. Reported consequences: 0 fatalities, 0 injuries, 2300 NATURAL GAS released, $430,000 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: 20130086.

Operator ID: 19160.

Reported incident date: 8/16/2013 12:30.

Cause detail: INTERNAL CORROSION

Cause detail: ON AUGUST 16, 2013, TENNESSEE GAS PIPELINE (TGP) COMPANY RECEIVED A REPORT FROM A 3RD PARTY AIRCRAFT OF BUBBLES INDICATING A LEAK IN THE VICINITY OF TGP'S 24" 523M-3700 PIPELINE ON THE OCS, OFFSHORE LOUISIANA. THE LEAK WAS ISOLATED AND CONTRACTED DIVERS RESPONDED TO INVESTIGATE. A PINHOLE LEAK IN THE PIPE BODY AT THE 6 O'CLOCK POSITION NEAR THE GIRTH WELD WAS FOUND. A CLAMP WAS INSTALLED AND THE PIPELINE WAS PLACED BACK INTO SERVICE.

PHMSA trend classification: significant incident, not serious.

PHMSA standardized cause: CORROSION — INTERNAL.

PHMSA indexed costs: $437,590 reported total cost, $228,554.426 in 1984 dollars, $555,272.889 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.