# NTSB Safety Recommendation P-81-022 - **operation:** document - **citation:** P-81-022 - **title:** NTSB Safety Recommendation P-81-022 - **source type:** guidance - **agency:** National Transportation Safety Board - **status:** guidance - **official:** true - **published on:** 1981-08-03 - **effective on:** 1981-08-03 - **summary:** THE NTSB RECOMMENDS THAT THE MISSOURI POWER & LIGHT COMPANY: INSTALL ALARMS ON THE EXISTING GAS PRESSURE AND GAS FLOW TELEMETERING EQUIPMENT TO PROMPTLY ALERT OPERATORS TO EMERGENCY CONDITIONS SUCH AS LINEBREAKS WHICH ARE EVIDENCED BY ABNORMALLY HIGH GAS FLOW RATES OR PRESSURE REDUCTIONS. - **machine formats:** - **json:** https://regulus.evalyn.ai/document/ntsb-recommendation-p-81-022.json - **markdown:** https://regulus.evalyn.ai/document/ntsb-recommendation-p-81-022.md - **app url:** https://regulus.evalyn.ai/document/ntsb-recommendation-p-81-022 - **source url:** https://data.ntsb.gov/carol-main-public/sr-details/P-81-022 **body:** NTSB safety recommendation P-81-022. THE NTSB RECOMMENDS THAT THE MISSOURI POWER & LIGHT COMPANY: INSTALL ALARMS ON THE EXISTING GAS PRESSURE AND GAS FLOW TELEMETERING EQUIPMENT TO PROMPTLY ALERT OPERATORS TO EMERGENCY CONDITIONS SUCH AS LINEBREAKS WHICH ARE EVIDENCED BY ABNORMALLY HIGH GAS FLOW RATES OR PRESSURE REDUCTIONS. Priority: CLASS II Overall Status: Closed - Acceptable Action Issued Date: 1981-08-03 Adopted Date: 1981-07-24 Overall Date Closed: 2001-12-21 Synopsis: ON JANUARY 8, 1981, A 2-INCH-DIAMETER PLASTIC GAS MAIN PULLED APART AT A COMPRESSION COUPLING UNDER AN ALLEY IN DOWNTOWN MEXICO, MISSOURI. NATURAL GAS AT 43-PSIG PRESSURE ESCAPED AND MIGRATED THROUGH A SANITARY SEWER INTO A NEARBY BUILDING WHERE IT WAS IGNITED BY AN UNDETERMINED SOURCE AT APPROXIMATELY 10:25 P.M. THE EXPLOSION AND FIRE DESTROYED A COMMERCIAL BUILDING, SEVERELY DAMAGED AN ADJACENT BUILDING, BROKE NEARBY WINDOWS, AND DAMAGED SEVERAL VEHICLES. THERE WERE NO FATALITIES; HOWEVER, THREE FIREFIGHTERS WERE INJURED WHILE FIGHTING THE FIRE. Ntsbnumber: FTW81FP005 Report Number: None Addressee Name: Missouri Power and Light Company Addressee Status: Closed - Acceptable Action Addressee Date Closed: 2001-12-21 Addressee Organization Type: P-Private Industry Communication Date: 1982-10-12 Communication Type: Official Correspondence Communication Contents: MISSOURI POWER AND LIGHT COMPANY LETTER: WITH REGARD TO P-81-22, WE HAVE SOME TELEMETERING ON OUR SYSTEM NOW. WE HAVE EXPLORED, AND WILL CONTINUE TO EXPLORE THE FEASIBILITY OF ADDING MORE. AS I MENTIONED IN RESPONSE TO A SIMILAR RECOMMENDATION (P-82-36) IN MY LETTER TO YOU OF OCTOBER 7, 1982, WE HAVE SOME RESERVATIONS ABOUT THE EFFECTIVENESS OF SUCH A SYSTEM. Addressee Organization Type: P-Private Industry Communication Date: 2001-12-12 Communication Type: Official Correspondence Communication Contents: The company has installed alarms on existing signals from pressure transmitters that alarm in the event of high pressure drops on its major receipt points, including the one involved in the accident. Based on this information, Safety Recommendation P-81-22 is administratively classified "Closed--Acceptable Action." Addressee Organization Type: P-Private Industry Communication Date: 1982-12-30 Communication Type: Official Correspondence Addressee Organization Type: P-Private Industry Communication Date: 1982-10-08 Communication Type: Official Correspondence - **truncated:** false - **body characters:** 2449