# NTSB Safety Recommendation P-78-011 - **operation:** document - **citation:** P-78-011 - **title:** NTSB Safety Recommendation P-78-011 - **source type:** guidance - **agency:** National Transportation Safety Board - **status:** guidance - **official:** true - **published on:** 1978-02-08 - **effective on:** 1978-02-08 - **summary:** THE NTSB RECOMMENDS THAT THE MATERIALS TRANSPORTATION BUREAU OF THE U. S. DEPARTMENT OF TRANSPORTATION: INCLUDE IN PROPOSED 49 CFR 195 REGULATIONS, PROVISIONS FOR CHECKING NATURAL GAS PIPELINES THAT ARE BEING CONVERTED TO LIQUEFIED PETROLEUM GAS (LPG) SERVCE FOR STRESS-CORROSION CRACKING. - **machine formats:** - **json:** https://regulus.evalyn.ai/document/ntsb-recommendation-p-78-011.json - **markdown:** https://regulus.evalyn.ai/document/ntsb-recommendation-p-78-011.md - **app url:** https://regulus.evalyn.ai/document/ntsb-recommendation-p-78-011 - **source url:** https://data.ntsb.gov/carol-main-public/sr-details/P-78-011 **body:** NTSB safety recommendation P-78-011. THE NTSB RECOMMENDS THAT THE MATERIALS TRANSPORTATION BUREAU OF THE U. S. DEPARTMENT OF TRANSPORTATION: INCLUDE IN PROPOSED 49 CFR 195 REGULATIONS, PROVISIONS FOR CHECKING NATURAL GAS PIPELINES THAT ARE BEING CONVERTED TO LIQUEFIED PETROLEUM GAS (LPG) SERVCE FOR STRESS-CORROSION CRACKING. Priority: CLASS III Overall Status: Closed - Acceptable Action Issued Date: 1978-02-08 Adopted Date: 1978-01-12 Overall Date Closed: 1985-09-03 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: RSPA Addressee Status: Closed - Acceptable Action Addressee Date Closed: 1985-09-03 Addressee Acronym: RSPA Addressee Organization Type: G-Federal Government Communication Date: 1978-09-12 Communication Type: Official Correspondence Communication Contents: MTB LTR: THE STUDY OF STRESS CORROSION CRACKING, THE SUBJECT OF RECOMMENDATION P-78-11, WAS INCLUDED IN A RECENT CONTRACT WITH ASL ENGINEERING INCORPORATED. WE ARE CURRENTLY REVIEWING THE FINAL REPORT ENTITLED "ENVIRONMENTALLY INDUCED CRACKING OF NATURAL GAS AND LIQUID PIPELINES." Addressee Acronym: RSPA Addressee Organization Type: G-Federal Government Communication Date: 1983-03-21 Communication Type: Official Correspondence Communication Contents: RSPA LETTER: DOT HAS FULFILLED THIS RECOMMENDATION THROUGH A COMBINATION OF INDEPTH STUDIES, AND BY THE PROMULGATION OF TWO RELATED RULEMKAING ACTIONS WHICH, TOGETHER, ARE DESIGNED TO REDUCE THE LIKELIHOOD OF INCIDENTS INVOLVING STRESS CORROSION CRACKING. MTB PUBLISHED A FINAL RULE, EFFECTIVE OCTOBER 1980, WHICH DISALLOWED ONSHORE INTERSTATE PIPELINE FACILITIES TO TRANSPORT HIGHLY VOLATILE LIQUIDS UNLESS THEY HAD BEEN HYDROSTATICALLY TESTED IN ACCORDANCE WITH SUBPART E OF 49 CFR 195. Addressee Acronym: RSPA Addressee Organization Type: G-Federal Government Communication Date: 1985-09-03 Communication Type: Official Correspondence Addressee Acronym: RSPA Addressee Organization Type: G-Federal Government Communication Date: 1980-06-03 Communication Type: Official Correspondence - **truncated:** false - **body characters:** 2523