# TENNESSEE GAS PIPELINE COMPANY — Gas transmission and gathering — incident on 2013-09-09

- **operation:** document
- **citation:** PHMSA Report 20130090
- **title:** TENNESSEE GAS PIPELINE COMPANY — Gas transmission and gathering — incident on 2013-09-09
- **source type:** incident
- **agency:** Pipeline and Hazardous Materials Safety Administration
- **status:** historical
- **official:** true
- **published on:** 2013-10-03
- **effective on:** 2013-09-09
- **summary:** Gas transmission and gathering incident. Reported cause: CORROSION FAILURE. Reported consequences: 0 fatalities, 0 injuries, 2405 NATURAL GAS released, $500,000 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. PHMSA trend classification: significant incident, not serious.
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**body:**

Gas transmission and gathering incident. Reported cause: CORROSION FAILURE. Reported consequences: 0 fatalities, 0 injuries, 2405 NATURAL GAS released, $500,000 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: 20130090.

Operator ID: 19160.

Reported incident date: 9/9/2013 12:20.

Cause detail: INTERNAL CORROSION

Cause detail: ON SEPTEMBER 9, 2013, TENNESSEE GAS PIPELINE (TGP) COMPANY WAS NOTIFIED BY TC OFFSHORE, A THIRD PART VENDOR FOR ANOTHER PIPELINE OPERATOR, OF A POTENTIAL OFFSHORE LEAK. BASED UPON THE LEAK COORDINATES IT WAS SUSPECTED THAT THE SOURCE OF THE LEAK WAS TGP'S 24" LINE 523M-3700 LOCATED ON THE OCS IN EUGENE ISLAND BLOCK 241. AFTER CONFIRMATION THAT THE LEAK WAS INDEED FROM THE TGP PIPELINE, THE PIPELINE SEGMENT WAS ISOLATED AND BLOWN DOWN. THE PIN HOLE SIZED LEAK ON THE BOTTOM QUADRANT OF THE PIPELINE WAS SECURED BY THE INSTALLATION OF A REPAIR CLAMP ON SEPTEMBER 15, 2013. THE PIPELINE SEGMENT HAS NOT BEEN RETURNED TO SERVICE SINCE THE REPAIR AND WILL NOT BE RETURNED TO SERVICE PENDING ABANDONMENT.

PHMSA trend classification: significant incident, not serious.

PHMSA standardized cause: CORROSION — INTERNAL.

PHMSA indexed costs: $545,255 reported total cost, $295,247.887 in 1984 dollars, $681,871.618 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.
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