Skip Ribbon Commands
Skip to main content
Safety Recommendation Details

Safety Recommendation M-86-107
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: PUBLISH GUIDELINES AND PROVIDE TECHNICAL ASSISTANCE TO AID MODU OWNERS AND OPERATORS IN THE GULF OF MEXICO TO DEVELOP EFFECTIVE SEVERE WEATHER EVACUATION PLANS.
Original recommendation transmittal letter: PDF
Overall Status: Closed - Acceptable 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 - Acceptable Action)
Keyword(s):

Safety Recommendation History
From: NTSB
To: USCG
Date: 12/23/1993
Response: BECAUSE THE USCG PUBLISEHED THE REQUESTED INFORMATION AT 33 CFR 146.140 AND F33 CFR 210, RECOMMENDATION M-86-107 HAS BEEN CLASSIFIED "CLOSED--ACCEPTABLE ACTION."

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

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

From: USCG
To: NTSB
Date: 4/8/1987
Response: THE CG CONCURS WITH THIS RECOMMENDATION IN PART. THE CG INTENDS TO PROMULGATE PERFORMANCE-ORIENTED REGULATIONS WHICH WILL ALLOW MODU OWNERS AND OPERATORS TO DEVELOP EFFECTIVE EVACUATION PLANS. THE CG INTENDS TO REVIEW AND APPROVE THESE EVACUATION PLANS. HOWEVER, THE CG DOES NOT CONCUR WITH THAT PART OF THE RECOMMENDATION TO PROVIDE TECHINCAL ASSISTANCE IN DEVELOPING EFFECTIVE EVACUATION PLANS FOR MODU OWNERS AND OPERATORS SINCE WE DO NOT HAVE THE RESOURCES TO PROVIDE SUCH ASSISTANCE. WE BELIEVE THAT PERFORMANCE-ORIENTED REGULATIONS AND CG APPROVAL OF EVACUATION PLANS WILL ENSURE THAT MODU OWNERS AND OPERATORS WILL DEVELOP EFFECTIVE SEVERE WEATHER EVACUATION PLANS.