NTSB Safety Recommendation P-78-002

NTSB safety recommendation P-78-002.

TEST PIPE FOR STRESS-CORROSION CRACKING USING A NONDESTRUCTIVE TESTING METHOD SUCH AS THE MAGNETIC PARTICLE-INSPECTION METHOD OR OTHER SUITABLE TECHNIQUE EVERY TIME THE PIPELINE IS EXPOSED FOR MAINTENANCE PURPOSES.

Priority: CLASS II

Overall Status: Closed - Acceptable Action

Issued Date: 1978-02-08

Adopted Date: 1978-01-12

Overall Date Closed: 1978-09-29

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.

Ntsbnumber: DCA77MP027

Report Number: PAR-78-01

Addressee Name: Consolidated Gas Transmission Corporation

Addressee Status: Closed--No Longer Applicable

Addressee Date Closed: 1978-09-29

Addressee Organization Type: P-Private Industry

Communication Date: 1978-07-17

Communication Type: Official Correspondence

Communication Contents: CONSOLIDATED GAS SUPPLY CORP. LTR: CONSOLIDATED GAS HAS DEVELOPED OPERATION AND MAINTENANCE PROCEDURES TO BE ISSUED SOON. THEY INCLUDE INSPECTION FOR STRESS CORROSION CRACKING--THE PIPE IN LPG PIPELINE G-136 SHALL BE TESTED FOR STRESS-CORROSION CRACKING USING THE MAGNETIC PARTICLE-INSPECTION METHOD EVERYTIME THE PIPELINE IS EXPOSED FOR MAINTENANCE PURPOSES.

Addressee Organization Type: P-Private Industry

Communication Date: 1978-09-29

Communication Type: Official Correspondence