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Safety Recommendation Details

Safety Recommendation P-79-019
Details
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.
Recommendation: 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)
Original recommendation transmittal letter: PDF
Overall Status: Closed - Acceptable Action
Mode: Pipeline
Location: Antigon Pass, AS, United States
Is Reiterated: No
Is Hazmat: No
Is NPRM: No
Accident #: DCA79FP018
Accident Reports:
Report #: None
Accident Date: 6/10/1979
Issue Date: 7/13/1979
Date Closed: 3/14/1988
Addressee(s) and Addressee Status: Alyeska Pipeline Service Company (Closed - Acceptable Action)
Keyword(s):

Safety Recommendation History
From: NTSB
To: Alyeska Pipeline Service Company
Date: 3/14/1988
Response:

From: Alyeska Pipeline Service Company
To: NTSB
Date: 11/17/1987
Response: 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.

From: Alyeska Pipeline Service Company
To: NTSB
Date: 10/26/1987
Response: NO RESPONSE--FOLLOWUP LETTER.

From: NTSB
To: Alyeska Pipeline Service Company
Date: 10/26/1987
Response:

From: NTSB
To: Alyeska Pipeline Service Company
Date: 9/13/1979
Response:

From: Alyeska Pipeline Service Company
To: NTSB
Date: 8/17/1979
Response: 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.