# NTSB Safety Recommendation P-74-038

- **operation:** document
- **citation:** P-74-038
- **title:** NTSB Safety Recommendation P-74-038
- **source type:** guidance
- **agency:** National Transportation Safety Board
- **status:** guidance
- **official:** true
- **published on:** 1974-10-24
- **effective on:** 1974-10-24
- **summary:** THE NTSB RECOMMENDS THAT THE OFFICE OF PIPELINE SAFETY OF THE DEPARTMENT OF TRANSPORTATION: IN ITS STUDY OF PLASTIC PIPE, DETERMINE WHETHER OCCLUDED PARTICLES DURING EXTRUSION ARE A SIGNIFICANT SAFETY PROBLEM, AND, IF SO FOUND, TAKE NECESSARY REGULATORY ACTION TO CONTROL THAT PROBLEM.
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- **source url:** https://data.ntsb.gov/carol-main-public/sr-details/P-74-038
**body:**

NTSB safety recommendation P-74-038.

THE NTSB RECOMMENDS THAT THE OFFICE OF PIPELINE SAFETY OF THE DEPARTMENT OF TRANSPORTATION: IN ITS STUDY OF PLASTIC PIPE, DETERMINE WHETHER OCCLUDED PARTICLES DURING EXTRUSION ARE A SIGNIFICANT SAFETY PROBLEM, AND, IF SO FOUND, TAKE NECESSARY REGULATORY ACTION TO CONTROL THAT PROBLEM.

Priority: CLASS II

Overall Status: Closed - Acceptable Action

Issued Date: 1974-10-24

Adopted Date: 1974-10-24

Overall Date Closed: 1985-09-03

Synopsis: ON JUNE 23, 1973, A SERIES OF EXPLOSIONS, FOLLOWED BY FIRE, OCCURRED AT 12321 WELLING LANE IN BOWIE, MARYLAND. THREE OCCUPANTS OF THE HOUSE WERE KILLED, AND A FOURTH WAS INJURED; THE HOUSE WAS BADLY DAMAGED. HOUSES IN A FIVE-BLOCK AREA WERE EVACUATED.

Ntsbnumber: PLD73XR006

Report Number: PAR-74-05

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: 1975-01-02

Communication Type: Official Correspondence

Communication Contents: MEMO FROM OFFICE OF PIPELINE SAFETY: THIS IS ONE OF THE SPECIFIC OBJECTIVES OF A CURRENT CONTRACT STUDY BEING PERFORMED BY TOUPS CORPORATION FOR OPS. THIS STUDY IS EXPECTED TO BE COMPLETED IN APRIL 1975, AND UPON EVALUATION OF THE CONTRACTOR'S REPORT BY OPS, THE APPROPRIATE ACTION WILL BE TAKEN.

Addressee Acronym: RSPA

Addressee Organization Type: G-Federal Government

Communication Date: 1983-03-21

Communication Type: Official Correspondence

Communication Contents: RSPA LETTER: THE SAFETY ISSUE DEALING WITH OCCLUDED PARTICLES ARISING FROM EXTRUSION PROCESSES (P-74-38) WAS ADDRESSED BY THE DOT TECHNICAL REPORT AND FOUND NOT TO BE OF MAJOR SIGNIFICANCE; AND ACCORDINGLY, REGULATORY ACTION WAS NOT WARRANTED.

Addressee Acronym: RSPA

Addressee Organization Type: G-Federal Government

Communication Date: 1985-09-03

Communication Type: Official Correspondence
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