{"operation":"document","citation":"P-73-052","title":"NTSB Safety Recommendation P-73-052","source_type":"guidance","agency":"National Transportation Safety Board","status":"guidance","official":true,"published_on":"1973-11-13","effective_on":"1973-11-13","summary":"THE NTSB RECOMMENDS THAT THE PHILLIPS PIPE LINE COMPANY: AMEND ITS MAINTENANCE OPERATING MANUAL TO INCLUDE A SECTION ON STRESS CONCENTRATION AS A RESULT OF IMPROPER REPAIR WELDING.","machine_formats":{"json":"https://regulus.evalyn.ai/document/ntsb-recommendation-p-73-052.json","markdown":"https://regulus.evalyn.ai/document/ntsb-recommendation-p-73-052.md"},"app_url":"https://regulus.evalyn.ai/document/ntsb-recommendation-p-73-052","source_url":"https://data.ntsb.gov/carol-main-public/sr-details/P-73-052","body":"NTSB safety recommendation P-73-052.\n\nTHE NTSB RECOMMENDS THAT THE PHILLIPS PIPE LINE COMPANY: AMEND ITS MAINTENANCE OPERATING MANUAL TO INCLUDE A SECTION ON STRESS CONCENTRATION AS A RESULT OF IMPROPER REPAIR WELDING.\n\nPriority: CLASS II\n\nOverall Status: Closed - Acceptable Action\n\nIssued Date: 1973-11-13\n\nAdopted Date: 1973-11-07\n\nOverall Date Closed: 1976-07-20\n\nSynopsis: ON FEBRUARY 22, 1973, NATURAL GAS LIQUIDS LEAKED FROM A RUPTURED 10-INCH PIPELINE AT A PUMP STATION IN AUSTIN, TEXAS, FLOWED INTO DITCHES ALONGSIDE A ROAD ADJACENT TO THE STATION, AND VAPORIZED. A DODGE VAN DROVE INTO THE VAPOR-RICH ZONE AND STALLED. WHEN THE DRIVER ATTEMPTED TO RESTART THE ENGINE, THE VAPOR IGNITED, AND THE DRIVER AND SEVEN PASSENGERS WERE ENGULFED IN FLAMES. SIX OF THESE PERSONS DIED AND TWO WERE CRITICALLY BURNED.\n\nNtsbnumber: PLD73XR005\n\nReport Number: PAR-73-04\n\nAddressee Name: Phillips Petroleum Company\n\nAddressee Status: Closed--No Longer Applicable\n\nAddressee Date Closed: 1976-07-20\n\nAddressee Organization Type: P-Private Industry\n\nCommunication Date: 1974-08-28\n\nCommunication Type: Official Correspondence\n\nCommunication Contents: LETTER FROM PHILLIPS PIPE LINE COMPANY: PHILLIPS' MAINTENANCE OPERATING MANUAL HAS BEEN AMENDED TO INCLUDE 'PROCEDURES THAT MUST BE FOLLOWED TO AVOID STRESS CONCENTRATIONS' DURING MAINLINE REPAIR AND MAINTENANCE.","truncated":false,"body_characters":1356}