TENNESSEE GAS PIPELINE CO (EL PASO) — Gas transmission and gathering — incident on 2011-12-22

Gas transmission and gathering incident. Reported cause: CORROSION FAILURE. Reported consequences: 0 fatalities, 0 injuries, 1 NATURAL GAS released, $307,366 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: 20120008.

Operator ID: 19160.

Reported incident date: 12/22/2011 9:15.

Cause detail: INTERNAL CORROSION

Cause detail: PRODUCTION OPERATOR PERSONNEL REPORTED BUBBLES AND A LIGHT SHEEN IN THE VICINITY OF TENNESSEE GAS PIPELINE (TGP) COMPANY'S PIPELINE ON THE OCS IN THE SOUTH TIMABALIER AREA, BLOCK 37. TGP DISPATCHED DIVERS WHO FOUND A PINHOLE LEAK AT THE 6 O'CLOCK POSITION ON ITS 20" 524J-100 PIPELINE. INTERNAL CORROSION IS SUSPECTED AS THE CAUSE. THE LEAK WAS REPAIRED BY INSTALLATION OF A CLAMP AND THE PIPELINE WAS PLACED BACK INTO SERVICE.

PHMSA trend classification: significant incident, not serious.

PHMSA standardized cause: CORROSION — INTERNAL.

PHMSA indexed costs: $374,110 reported total cost, $209,205.933 in 1984 dollars, $470,380.641 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.