Skip Ribbon Commands
Skip to main content
Safety Recommendation Details

Safety Recommendation P-72-025
Details
Synopsis: ON NOVEMBER 17, 1971, WHILE IN THE PROCESS OF REVAMPING A REGULATOR STATION, EMPLOYEES OF THE EQUITABLE GAS COMPANY WERE ATTEMPTING TO REPLACE A VALVE ON THE LOW-PRESSURE SIDE OF A REGULATOR IN A VAULT WITHOUT FIRST STOPPING THE FLOW OF GAS. TWO MEN WORKING IN THE VAULT WERE OVERCOME BY GAS LEAKING INTO THE VAULT. FOUR OTHERS ALSO WERE OVERCOME ATTEMPTING TO RESCUE THE FIRST TWO. ALL SIX MEN DIED OF ASPHYXIATION. THREE OTHER MEN ALSO WERE INJURED.
Recommendation: THE NTSB RECOMMENDS THAT: THE OFFICE OF PIPELINE SAFETY OF THE DEPARTMENT OF TRANSPORTATION CLARIFY THE LANGUAGE OF 49 CFR 192.199(G) TO STATE CLEARLY THAT THE INTENT OF THE REGULATION IS TO SEPARATE PRESSURE-LIMITING DEVICES BY DISTANCE, BARRIER, OR SEPARATE HOUSING.
Original recommendation transmittal letter: PDF
Overall Status: Closed - Reconsidered
Mode: Pipeline
Location: Pittsburgh, PA, United States
Is Reiterated: No
Is Hazmat: No
Is NPRM: No
Accident #:
Accident Reports:
Report #:
Accident Date: 11/17/1971
Issue Date: 6/8/1972
Date Closed: 9/10/1976
Addressee(s) and Addressee Status:
Keyword(s):