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Safety Recommendation Details

Safety Recommendation P-78-007
Details
Synopsis: ON JULY 20, 1977, A 12-INCH PROPANE PIPELINE, OWNED BY THE CONSOLIDATED GAS SUPPLY CORPORATION, RUPTURED NEAR THE TOWN OF RUFF CREEK, PENNSYLVANIA. THE LIQUID ESCAPED FROM THE PIPELINE, VAPORIZED, AND PROPANE VAPORS SETTLED LIKE A FOG OVER THE BOTTOM OF A VALLEY. TWO MEN IN A PICKUP TRUCK ENTERED THE PROPANE CLOUD; THE TRUCK STALLED AND THE PROPANE GAS IGNITED WHEN AN ATTEMPT WAS MADE TO RESTART THE TRUCK. THE 2 PERSONS IN THE TRUCK WERE KILLED.
Recommendation: INSPECT ON A RANDOM SAMPLE BASIS THE SEGMENT OF PIPELINE 10 MILES DOWNSTREAM OF THE FORMER PRESTON COMPRESSOR STATION, INCLUDING THE AREA BETWEEN INTERSTATE HIGHWAYS 70 AND 79 WHERE COAL MINES ARE PREVALENT, FOR OTHER EVIDENCE OF STRESS-CORROSION CRACKING OR INCREASED-DEPTH, GENERAL CORROSION PITTING. INCREASE CATHODIC PROTECTION OR CONSIDER LINE REPLACEMENT IN AREAS WHERE SEVERE CORROSION OR STRESS-CORROSION CRACKING IS FOUND.
Original recommendation transmittal letter: PDF
Overall Status: Closed - Acceptable Action
Mode: Pipeline
Location: Ruff Creek, PA, United States
Is Reiterated: No
Is Hazmat: No
Is NPRM: No
Accident #: DCA77MP027
Accident Reports:
Consolidated Gas Supply Corporation, Propane Pipeline Rupture and Fire
Report #: PAR-78-01
Accident Date: 7/20/1977
Issue Date: 2/8/1978
Date Closed: 3/14/1979
Addressee(s) and Addressee Status: Consolidated Gas Transmission Corporation (Closed--No Longer Applicable)
Keyword(s):

Safety Recommendation History
From: NTSB
To: Consolidated Gas Transmission Corporation
Date: 3/14/1979
Response:

From: Consolidated Gas Transmission Corporation
To: NTSB
Date: 7/17/1978
Response: CONSOLIDATED GAS SUPPLY CORP. LTR: TWO LOCATIONS HAVE BEEN INSPECTED BETWEEN I-70 AND I-79 FOR THE PRESENCE OF STRESS-CORROSION CRACKING. NONE WAS FOUND. ADDITIONAL LOCATIONS WILL BE SCHEDULED FOR WORK LATER THIS YEAR. 1/23/78 - CONSOLIDATED GAS SUPPLY CORP. LTR: A LIST OF LEAK REPAIR SITES IS GIVEN. THE REPAIR AREAS WERE CHECKED FOR STRESS-CORROSION CRACKING AND FOR GENERAL CORROSION PITTING. THE SEVERE ACTIVE CORROSION THAT CAUSED THE LEAKS WAS THE RESULT OF "COAL BLOSSOM" NEARNESS OR CONTACT. NO EVIDENCE OF STRESS-CORROSION WAS FOUND AND ONLY LIMITED GENERAL CORROSION WAS FOUND AWAY FROM THE LEAK AREAS.