Guidanceguidance
P-79-019
NTSB Safety Recommendation P-79-019
Current as of 1979-07-13 Government source
RegulusPipeline researchRegulusPipeline researchP-79-019
NTSB safety recommendation P-79-019.
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)
Priority: CLASS I
Overall Status: Closed - Acceptable Action
Issued Date: 1979-07-13
Adopted Date: 1979-07-13
Overall Date Closed: 1988-03-14
Synopsis: 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.
Probable Cause: None
Ntsbnumber: DCA79FP018
Report Number: None
Addressee Name: Alyeska Pipeline Service Company
Addressee Status: Closed - Acceptable Action
Addressee Date Closed: 1988-03-14
Addressee Organization Type: P-Private Industry
Communication Date: 1979-08-17
Communication Type: Official Correspondence
Communication 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.
Addressee Organization Type: P-Private Industry
Communication Date: 1987-10-26
Communication Type: Official Correspondence
Communication Contents: NO RESPONSE--FOLLOWUP LETTER.
Addressee Organization Type: P-Private Industry
Communication Date: 1987-11-17
Communication Type: Official Correspondence
Communication 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.
Addressee Organization Type: P-Private Industry
Communication Date: 1979-09-13
Communication Type: Official Correspondence
Addressee Organization Type: P-Private Industry
Communication Date: 1988-03-14
Communication Type: Official Correspondence
Addressee Organization Type: P-Private Industry
Communication Date: 1987-10-26
Communication Type: Official Correspondence
This material provides agency context. It does not replace binding regulatory text, and its legal effect depends on the underlying authority and facts.