# NTSB Safety Recommendation P-75-011

- **operation:** document
- **citation:** P-75-011
- **title:** NTSB Safety Recommendation P-75-011
- **source type:** guidance
- **agency:** National Transportation Safety Board
- **status:** guidance
- **official:** true
- **published on:** 1975-05-28
- **effective on:** 1975-05-28
- **summary:** REQUIRE TRANSCO TO: EXAMINE THE NECESSITY OF INSTALLING ADDITIONAL PIPELINE FAILURE ALARMS ON THE STATION RECORDING SUCTION AND DISCHARGE PRESSURE GAUGE, THE STATION RECORDING FUEL PRESSURE GAUGE, THE STATION FUEL FLOW GAUGE, OR THER OTHER PRESSURE-SENSITIVE POINTS. (URGENT)
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**body:**

NTSB safety recommendation P-75-011.

REQUIRE TRANSCO TO: EXAMINE THE NECESSITY OF INSTALLING ADDITIONAL PIPELINE FAILURE ALARMS ON THE STATION RECORDING SUCTION AND DISCHARGE PRESSURE GAUGE, THE STATION RECORDING FUEL PRESSURE GAUGE, THE STATION FUEL FLOW GAUGE, OR THER OTHER PRESSURE-SENSITIVE POINTS. (URGENT)

Priority: CLASS I

Overall Status: Closed - Acceptable Action

Issued Date: 1975-05-28

Adopted Date: 1975-05-28

Overall Date Closed: 1979-02-02

Synopsis: ON JUNE 9, 1974, THE TRANSCONTINENTAL GAS PIPE LINE CORPORATION'S 30-INCH NATURAL GAS TRANSMISSION PIPELINE RUPTURED IN A RURAL AREA NEAR BEALETON, VIRGINIA. NATURAL GAS ESCAPED, IGNITED, AND FUELED FLAMES WHICH WERE VISIBLE TO AIRLINE PILOTS OVER 100 MILES AWAY. NO DEATHS OR INJURIES RESULTED, NO LIVESTOCK WERE AFFECTED, AND PROPERTY DAMAGE AMOUNTED ONLY TO A SCORCHED FIELD AND SOME BURNED TREES.

Ntsbnumber: PLD74XR006

Report Number: PAR-75-02

Addressee Name: RSPA

Addressee Status: Closed - Acceptable Action

Addressee Date Closed: 1979-02-02

Addressee Acronym: RSPA

Addressee Organization Type: G-Federal Government

Communication Date: 1976-05-10

Communication Type: Official Correspondence

Communication Contents: 5/24/76 - LTR FROM TRANSCO TO NTSB, ENCLOSING 10/27/75 LTR TO OPSO: TRANSCO IS INSTALLING DIAL TYPE PRESSURE GAUGES EASILY VISIBLE TO STATION OPERATORS WHICH WILL SIMULTANEOUSLY DISPLAY PRESSURE CONDITIONS ON EACH LINE ENTERING AND LEAVING THE STATION. ALSO THEY WILL INSTALL A RATE-OF-PRESSURE DROP ALARM ON THE DISCHARGE AND SUCTION HEADERS AT EACH COMPRESSOR STATION.
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