NTSB Safety Recommendation P-79-033

NTSB safety recommendation P-79-033.

THE NTSB RECOMMENDS THAT THE MATERIALS TRANSPORTATION BUREAU (RESEARCH AND SPECIAL PROGRAMS ADMINISTRATION): INSTRUCT ITS REGIONAL OFFICES AND STATE AGENCIES TO IMMEDIATELY DIRECT OPERATORS WHO DISTINGUISH YARD LINES FROM SERVICE LINES TO INCORPORATE THE SAME INSPECTION, OPERATION, AND MAINTENANCE OF THESE LINES IN THEIR OPERATION AND MAINTENANCE PLAN AS FOR THE COMPANY-OWNED SERVICE LINES.

Priority: CLASS II

Overall Status: Closed - Acceptable Action

Issued Date: 1979-10-29

Adopted Date: 1979-10-29

Overall Date Closed: 1980-06-03

Synopsis: ON MAY 29, 1978, AN EXPLOSION DESTROYED A ONE-STORY BRICK HOUSE IN ARLINGTON, TEXAS, AND DAMAGED ADJACENT HOUSES; THERE WERE NO FATALITIES OR INJURIES. THE NTSB INVESTIGATION REVEALED THAT NATURAL GAS HAD LEAKED FROM TWO CORROSION HOLES IN THE 1-INCH BARE STEEL GAS CUSTOMER YARD LINE LOCATED ABOUT 12 FEET FROM THE WALL OF THE HOUSE AND HAD ACCUMULATED UNDER THE FOUNDATION OF THE HOUSE.

Ntsbnumber: FTW78FP009

Report Number: None

Addressee Name: RSPA

Addressee Status: Closed - Acceptable Action

Addressee Date Closed: 1980-06-03

Addressee Acronym: RSPA

Addressee Organization Type: G-Federal Government

Communication Date: 1980-04-16

Communication Type: Official Correspondence

Communication Contents: RSPA LTR: MTB HAS INSTRUCTED ITS REGIONAL OFFICES IN A MEMO DATED MARCH 28, 1980, TO REGIONAL CHIEFS FROM RSPA OPERATIONS AND ENFORCEMENT CHIEF, AS PART OF ONGOING PIPELINE INSPECTION ACTIVITIES, TO DIRECT THIS ITEM TO THE IMMEDIATE ATTENTION OF ALL COGNIZANT GAS PIPELINE OPERATORS. REGIONS HAVE ALSO BEEN INSTRUCTED TO CONTACT APPROPRIATE STATE AGENCIES TO REVIEW THE DEFINITION OF SERVICE LINES IN RELATION TO THE PROBLEM IDENTIFIED BY NTSB. THE STATE AGENCIES ARE BEING INSTRUCTED TO DIRECT OPERATORS SUBJECT TO STATE JURISDICTION TO INSPECT AND OPERATE THE YARD LINE PORTION OF THE SERVICE LINE IN THE SAME MANNER AS THE OPERATOR-OWNED POSITION OF THE SERVICE LINE.

Addressee Acronym: RSPA

Addressee Organization Type: G-Federal Government

Communication Date: 1980-06-03

Communication Type: Official Correspondence