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Safety Recommendation Details

Safety Recommendation M-86-102
Details
Synopsis: ON OCTOBER 27, 1985, THE U.S. MOBILE OFFSHORE DRILLING UNIT PENROD 61 WAS DRILLING FOR OIL AT AN OFFSHORE DRILLING SITE ABOUT 25 NAUTICAL MILES (NMI) SOUTH OF THE LOUISIANA COAST IN THE GULF OF MEXICO. THE PENROD 61, A SELF-ELEVATING TYPE DRILLING UNIT, WAS IN THE JACKED-UP MODE IN ABOUT 246 FEET OF WATER AND WAS ELEVATED ABOUT 50 FEET ABOVE THE SURFACE OF THE WATER ON THREE BOTTOM BEARING LEGS. ABOUT 2330 C.S.T. IN SEAS REPORTED TO BE IN EXCESS OF 30 FEET HIGH AND IN WINDS GUSTING TO 80 KNOTS, THE PENROD 61 COLLAPSED INTO THE SEA. THE 43 PERSONS ON BOARD ABANDONED THE VESSEL AND ALL BUT ONE WERE LATER RESCUED. AFTER IT FELL INTO THE SEA THE PENROD 61 DRIFTED WITH THE WIND AND SEA, STRUCK THE NEARBY PENROD 60, AND SUBSEQUENTLY SANK ABOUT 9 NMI NORTHWEST OF ITS DRILLING SITE. AS A RESULT OF THIS ACCIDENT THE PENROD 61, VALUED AT $40 MILLION, WAS DESTROYED AND ONE MAN LOST HIS LIFE.
Recommendation: THE NTSB RECOMMENDS THAT THE U.S. COAST GUARD: AMEND 46 CFR 107 TO REQUIRE THE THOROUGH INSPECTION OF THE ENTIRE LENGTH OF SELF-ELEVATING MODU LEGS AT THE TIME OF REGULAR DRYDOCK EXAMINATION OR SPECIAL EXAMINATION IN LIEU OF DRYDOCKING.
Original recommendation transmittal letter: PDF
Overall Status: Closed - Unacceptable Action
Mode: Marine
Location: Gulf of Mexico, GM, United States
Is Reiterated: No
Is Hazmat: No
Is NPRM: No
Accident #: DCA86MM005
Accident Reports: ​Collapse of the U.S. Mobile Offshore Drilling Unit Penrod 61
Report #: MAR-86-10
Accident Date: 10/27/1985
Issue Date: 10/14/1986
Date Closed: 12/23/1993
Addressee(s) and Addressee Status: USCG (Closed - Unacceptable Action)
Keyword(s):

Safety Recommendation History
From: NTSB
To: USCG
Date: 12/23/1993
Response: BECAUSE THE REGULATION PROJECTS INITIATED TO IMPLEMENT THIS RECOMMENDATION WERE CANCELLED AND BECAUSE THE USCG HAS STATED THAT IT IS NOT PLANNING TO REINITIATE ACTION ANYTIME SOON, RECOMMENDATION M-86-102 HAS BEEN CLASSIFIED "CLOSED--UNACCEPTABLE ACTION."

From: USCG
To: NTSB
Date: 8/20/1993
Response: SEE BOARD REPLY BELOW

From: NTSB
To: USCG
Date: 4/27/1989
Response:

From: USCG
To: NTSB
Date: 10/5/1988
Response: THIS RESPONSE IS AN UPDATE ON THE STATUS OF SEVERAL REGULATORY PROJECTS THAT THE COAST GUARD HAS IN PROGRESS WHICH, WHEN FINALIZED, WILL IMPLEMENT THE REQUIREMENTS OF EACH OF THESE SAFETY RECOMMENDATIONS.

From: NTSB
To: USCG
Date: 6/24/1987
Response:

From: USCG
To: NTSB
Date: 4/8/1987
Response: