NTSB Safety Recommendation P-76-084

NTSB safety recommendation P-76-084.

EXAMINE ITS RECORDS TO DETERMINE OTHER LOCATIONS WHERE GAS LINES WERE INSTALLED NEAR EXISTING SEWER FACILITIES (INCLUDING A REVIEW OF SEWER BLOCKAGE COMPLAINTS), THEN INSPECT THESE LOCATIONS AND TAKE CORRECTIVE ACTION WHERE NECESSARY. (URGENT)

Priority: CLASS I

Overall Status: Closed - Acceptable Action

Issued Date: 1976-10-26

Adopted Date: 1976-10-26

Overall Date Closed: 1983-02-14

Synopsis: ON AUGUST 29, 1976, AN EXPLOSION AND FIRE DESTROYED A HOUSE AT 6521 20TH AVENUE IN KENOSHA, WISCONSIN. TWO PERSONS WERE KILLED, FOUR PERSONS WERE INJURED, AND TWO ADJACENT HOUSES WERE DAMAGED. THE DESTROYED HOUSE WAS NOT SERVED BY NATURAL GAS. HOWEVER, NATURAL GAS, WHICH WAS ESCAPING AT 58 PSIG PRESSURE FROM A PUNCTURED 2-INCH PLASTIC MAIN LOCATED 39 FEET AWAY, HAD ENTERED THE HOUSE THROUGH A 6-INCH SEWER LATERAL. THE GAS WAS IGNITED BY AN UNKNOWN SOURCE.

Ntsbnumber: DCA76FP028

Report Number: None

Addressee Name: Wisconsin Natural Gas Company

Addressee Status: Closed--No Longer Applicable

Addressee Date Closed: 1983-02-14

Addressee Organization Type: P-Private Industry

Communication Date: 1982-10-19

Communication Type: Official Correspondence

Communication Contents: WISCONSIN NATURAL GAS COMPANY LETTER: WISCONSIN NATURAL GAS COMPANY HAS RESEARCHED ITS RECORDS FOR LOCATIONS WHERE SIMILAR CONSTRUCTION TECHNIQUES COULD HAVE BEEN PERFORMED. A PROGRAM WAS DEVELOPED FOR INVESTIGATION OF POTENTIAL CONFLICT AND TAKING CORRECTIVE ACTION, IF REQUIRED.

Addressee Organization Type: P-Private Industry

Communication Date: 1983-03-04

Communication Type: Official Correspondence

Addressee Organization Type: P-Private Industry

Communication Date: 1983-02-14

Communication Type: Official Correspondence

Addressee Organization Type: P-Private Industry

Communication Date: 1982-10-05

Communication Type: Official Correspondence