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Safety Recommendation Details

Safety Recommendation M-86-108
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 INTERNATIONAL ASSOCIATION OF DRILLING CONTRACTORS: ENCOURAGE MEMBER CONTRACTORS WHO OPERATE MOBILE OFFSHORE DRILLING UNITS IN THE SAME AREA OF THE GULF OF MEXICO TO DEVELOP JOINT SEVERE WEATHER EVACUATION PLANS TO POOL AVAILABLE TRANSPORTATION RESOURCES SO THAT THE SIMULTANEOUS EVACUATION OF A NUMBER OF MODUS WORKING IN THE SAME GEOGRAPHICAL AREA MAY BE CONDUCTED IN AN ORDERLY AND EFFECTIVE MANNER.
Original recommendation transmittal letter: PDF
Overall Status: Closed - Acceptable Alternate 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: 3/14/1988
Addressee(s) and Addressee Status: International Association of Drilling Contractors (Closed - Acceptable Alternate Action)
Keyword(s):

Safety Recommendation History
From: NTSB
To: International Association of Drilling Contractors
Date: 3/14/1988
Response:

From: International Association of Drilling Contractors
To: NTSB
Date: 11/9/1987
Response:

From: NTSB
To: International Association of Drilling Contractors
Date: 10/16/1987
Response: