{"operation":"document","citation":"P-79-019","title":"NTSB Safety Recommendation P-79-019","source_type":"guidance","agency":"National Transportation Safety Board","status":"guidance","official":true,"published_on":"1979-07-13","effective_on":"1979-07-13","summary":"THE NTSB RECOMMENDS THAT THE ALYESKA PIPELINE SERVICE COMPANY: FABRICATE A VARIETY OF SPECIAL SPLIT-SLEEVE REPAIR CLAMPS LARGE ENOUGH TO ENCOMPASS PIPE WRINKLES SIMILAR TO THOSE ENCOUNTERED IN THE LATEST FAILURES. THESE REPAIR SLEEVES SHOULD BE STORED TO PROVIDE FOR RAPID DISPOSITION TO LEAK SITES. (URGENT)","machine_formats":{"json":"https://regulus.evalyn.ai/document/ntsb-recommendation-p-79-019.json","markdown":"https://regulus.evalyn.ai/document/ntsb-recommendation-p-79-019.md"},"app_url":"https://regulus.evalyn.ai/document/ntsb-recommendation-p-79-019","source_url":"https://data.ntsb.gov/carol-main-public/sr-details/P-79-019","body":"NTSB safety recommendation P-79-019.\n\nTHE NTSB RECOMMENDS THAT THE ALYESKA PIPELINE SERVICE COMPANY: FABRICATE A VARIETY OF SPECIAL SPLIT-SLEEVE REPAIR CLAMPS LARGE ENOUGH TO ENCOMPASS PIPE WRINKLES SIMILAR TO THOSE ENCOUNTERED IN THE LATEST FAILURES. THESE REPAIR SLEEVES SHOULD BE STORED TO PROVIDE FOR RAPID DISPOSITION TO LEAK SITES. (URGENT)\n\nPriority: CLASS I\n\nOverall Status: Closed - Acceptable Action\n\nIssued Date: 1979-07-13\n\nAdopted Date: 1979-07-13\n\nOverall Date Closed: 1988-03-14\n\nSynopsis: ON JUNE 10, 1979, THE PILOT OF A HELICOPTER REPORTED SIGHTING OIL ON THE SURFACE OF THE ATIGUN RIVER NEAR THE ROUTE OF THE ALYESKA PIPELINE SERVICE COMPANY'S 48-INCH CRUDE OIL PIPELINE. THE OIL WAS SEEN ON THE NORTH SIDE OF ATIGUN PASS, 166 MILES SOUTH OF THE PIPELINE TERMINAL AT PRUDHOE BAY, ALASKA. ALYESKA WAS NOTIFIED AND BEGAN SHUTDOWN PROCEDURES AT 9 A.M. BY 9:28 A.M. THE NORTH SECTION OF THE LINE BETWEEN PUMP STATIONS NOS. 1 AND 4 WAS SHUT DOWN. BY 10:46 A.M. THE ENTIRE LINE HAD BEEN SHUT DOWN. THE PIPE BETWEEN PUMP STATIONS NOS. 4 AND 5 WAS DRAINED.\n\nProbable Cause: None\n\nNtsbnumber: DCA79FP018\n\nReport Number: None\n\nAddressee Name: Alyeska Pipeline Service Company\n\nAddressee Status: Closed - Acceptable Action\n\nAddressee Date Closed: 1988-03-14\n\nAddressee Organization Type: P-Private Industry\n\nCommunication Date: 1979-08-17\n\nCommunication Type: Official Correspondence\n\nCommunication Contents: ALYESKA PIPELINE SERVICE COMPANY LTR: ALYESKA IS CURRENTLY INVESTIGATING COMMERCIALLY AVAILABLE SLEEVES LARGE ENOUGH TO ENCOMPASS PIPE WRINKLES SIMILAR TO THOSE ENCOUNTERED. THERE ARE SIX SPLIT-SLEEVES SIMILAR IN DESIGN TO THOSE INSTALLED AT MP 166 AND MP 734, CURRENTLY ON ORDER. FURTHER DESIGN IMPROVEMENTS ARE BEING CONSIDERED.\n\nAddressee Organization Type: P-Private Industry\n\nCommunication Date: 1987-10-26\n\nCommunication Type: Official Correspondence\n\nCommunication Contents: NO RESPONSE--FOLLOWUP LETTER.\n\nAddressee Organization Type: P-Private Industry\n\nCommunication Date: 1987-11-17\n\nCommunication Type: Official Correspondence\n\nCommunication Contents: ALYESKA WAS UNABLE TO LOCATE COMMERCIALLY AVAILABLE SPLIT SLEEVE REPAIR CLAMPS SUITABLE TO ENCOMPASS PIPE WRINKLES SIMILAR TO THOSE ENCOUNTERED AT PIPELINE MILEPOST 166 AND MILEPOST 734. ALYESKA HAS DESIGNED, FABRICATED AND TESTED SPECIAL SPLIT SLEEVES FOR THIS PURPOSE. FIVE SUCH SLEEVES ARE STORED AT FAIRBANKS TO PROVIDE FOR RAPID DEPLOYMENT TO POTENTIAL LEAK SITES.\n\nAddressee Organization Type: P-Private Industry\n\nCommunication Date: 1979-09-13\n\nCommunication Type: Official Correspondence\n\nAddressee Organization Type: P-Private Industry\n\nCommunication Date: 1988-03-14\n\nCommunication Type: Official Correspondence\n\nAddressee Organization Type: P-Private Industry\n\nCommunication Date: 1987-10-26\n\nCommunication Type: Official Correspondence","truncated":false,"body_characters":2827}