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PENROD 51

Mobile Offshore Drilling Unit · Offshore class · Built 1950s · USCG Heartland District (CGD-H)

PENROD 51 is a 1957 mobile offshore drilling unit. The Coast Guard has recorded 16 inspections since 1982, most recently in July 1989, along with 40 deficiencies.

Records from 1982 to 1989. Most recent: inspection, 28 July 1989.

Built
1957
Last inspected
28 July 1989
Documentation
Not in the documentation file of 10 September 2026
Inspections
16
Deficiencies
40 recorded · 0 without a recorded resolution
Controls
None recorded without a removal date

Identity

US Official No.
535164
IMO number
—
Call sign
—
MISLE id
54382
Flag
UNITED STATES
MMSI
—
Maury page id
psix-54382

Inspections, by type

…physical examinations2
…administrative events4
…with no type recorded10
Years with a record 7 calendar years (1982–1989)
The 16 inspections in the strip above, split by the kind of activity the US Coast Guard recorded. Years with a record are calendar years in which a record exists, not years in service. What Maury does not do.

This record may be incomplete: the most recent inspection recorded for this vessel was 37 years ago. Maury shows what the Coast Guard recorded, not whether the vessel has been inspected since, is still in service, or what condition it is in. Coast Guard record current through 13 September 2026, retrieved 18 September 2026 from PSIX. Every field on this page was recorded by the Coast Guard. Records for the Offshore class in Maury's sources begin in 1978.

Documentation record

Tonnage as PSIX records it1877 - Regulatory (Subpart C or D), Gross Ton
1877 - Regulatory (Subpart C or D), Net Ton
This hull's Official Number is not in the NVDC file dated 10 September 2026 as served by NOAA Fisheries, so no documentation record is shown. Absence from that file is a fact about the file, not about the hull.

Radio station licence

No FCC ship-station licence is recorded against this Official Number in the file of 6 September 2026. That is a fact about the licence file, not about the radio.

A report is not offered for this hull: Its record holds only 2 of the seven kinds of material a report is built from: inspections, deficiencies, operational controls, tow-unit appearances, casualty records, dimensions and documentation. That is a statement about the record, not about the vessel. Reports.

Inspection history · 16

28 July 1989 Type not recorded
No type recorded · MSO MORGAN CITY · USCG Heartland District (CGD-H) · Activity 898051
9 December 1987 Administrative
Administrative · MSO NEW ORLEANS · USCG Heartland District (CGD-H) · Activity 1321618
19 August 1987 Type not recorded
No type recorded · MIO NEW ORLEANS · USCG Heartland District (CGD-H) · Activity 1002817
7 April 1987 Type not recorded
No type recorded · MIO NEW ORLEANS · USCG Heartland District (CGD-H) · Activity 1017688
11 March 1987 Administrative
Administrative · MIO NEW ORLEANS · USCG Heartland District (CGD-H) · Activity 1011493
27 January 1987 Type not recorded
No type recorded · MIO NEW ORLEANS · USCG Heartland District (CGD-H) · Activity 1310304
21 November 1986 COI Inspection
Physical examination · MIO NEW ORLEANS · USCG Heartland District (CGD-H) · Activity 1005768
4 December 1985 Re-Inspection
Physical examination · MIO NEW ORLEANS · USCG Heartland District (CGD-H) · Activity 1293007
26 August 1985 Credit Drydock
Administrative · MIO NEW ORLEANS · USCG Heartland District (CGD-H) · Activity 1293518
21 June 1985 Credit Drydock
Administrative · MIO NEW ORLEANS · USCG Heartland District (CGD-H) · Activity 986175
16 January 1985 Type not recorded
No type recorded · MIO NEW ORLEANS · USCG Heartland District (CGD-H) · Activity 981656
20 November 1984 Type not recorded
No type recorded · MIO NEW ORLEANS · USCG Heartland District (CGD-H) · Activity 1282125
22 February 1984 Type not recorded
No type recorded · MIO NEW ORLEANS · USCG Heartland District (CGD-H) · Activity 972844
14 December 1983 Type not recorded
No type recorded · MIO NEW ORLEANS · USCG Heartland District (CGD-H) · Activity 971158
18 October 1983 Type not recorded
No type recorded · MIO NEW ORLEANS · USCG Heartland District (CGD-H) · Activity 1275202
15 December 1982 Type not recorded
No type recorded · MIO NEW ORLEANS · USCG Heartland District (CGD-H) · Activity 1272921

Deficiency record · 40

Construction/Loadline
Issued 21 November 1986 Resolved
RENEW BURNED OUT BULBS AS NECESSARY ON THE BALLAST CONTROL PANEL.
Condition: Unknown
Due 21 November 1986
Resolved 21 November 1986
Lifesaving
Issued 21 November 1986 Resolved
THE FOLLOWING EQUIPMENT TO BE PROVIDED FOR THE PERSONAL FLOTATION DEVICES: 18 COAST GUARD APPROVED LIGHTS.
Condition: Unknown
Due 21 November 1986
Resolved 21 November 1986
Lifesaving
Issued 21 November 1986 Resolved
PROVIDE TWO EACH SMOKE FLARES FOR THE RING BUOYS.
Condition: Unknown
Due 21 November 1986
Resolved 21 November 1986
Lifesaving
Issued 21 November 1986 Resolved
REPAIR OR RENEW TWO EACH FLOATHTION LIGHTS FOR THE RING LIFE BUOYS.
Condition: Unknown
Due 21 November 1986
Resolved 21 November 1986
Lifesaving
Issued 21 November 1986 Resolved
REPAIR THE GRAB LINES ON ALL RING LIFE BUOYS.
Condition: Unknown
Due 21 November 1986
Resolved 21 November 1986
Fire Fighting
Issued 21 November 1986 Resolved
PROVIDE ONE (1) EACH 3 CELL FLASHLIGHT FOR EACH FIREMANS OUTFIT.
Condition: Unknown
Due 21 November 1986
Resolved 21 November 1986
Fire Fighting
Issued 21 November 1986 Resolved
HYDRO AS NECESSARY AND RECHARGE BOTH BOTTLES FOR THE SELF CONTAINED BREATHING APPARATUS.
Condition: Unknown
Due 21 November 1986
Resolved 21 November 1986
Fire Fighting
Issued 21 November 1986 Resolved
PROVIDE 24 EACH TRIANGULAR BANDAGES AND 12 EACH 1-INCH BANDAGTES FOR THE FIRST AID KIT.
Condition: Unknown
Due 21 November 1986
Resolved 21 November 1986
Lifesaving
Issued 21 November 1986 Resolved
PROVIDE 4 EACH 50 FOOT LENGTHS OF 1-1/2 FIRE HOSE.
Condition: Unknown
Due 21 November 1986
Resolved 21 November 1986
Navigation
Issued 21 November 1986 Resolved
REPAIR WHITE MASTHEAD LIGHT.
Condition: Unknown
Due 21 November 1986
Resolved 21 November 1986
Construction/Loadline
Issued 21 November 1986 Resolved
REPAIR DOOR CLOSURE IN WAY OF MUD PIT ROOM, PORT SIDE.
Condition: Unknown
Due 21 November 1986
Resolved 21 November 1986
Electrical
Issued 21 November 1986 Resolved
REMOVE ALL DEAD END ELECTRICAL CABLES FROM DRILL FLOOR.
Condition: Unknown
Due 21 November 1986
Resolved 21 November 1986
Electrical
Issued 21 November 1986 Resolved
FREE UP ALL VENT CLOSURE DOGS AND HATCH COVER DOGS.
Condition: Unknown
Due 21 November 1986
Resolved 21 November 1986
Electrical
Issued 21 November 1986 Resolved
REMOVE EXPLOSION PROFF INCANDESCENT LIGHT FIXTURE ABOVE DRILLERS COUNSOLE.
Condition: Unknown
Due 21 November 1986
Resolved 21 November 1986
Electrical
Issued 21 November 1986 Resolved
RENEW THREE (3) EXPLOSION PROFF LIGHT FIXTURES LOCATED IN MUD PIT ROOM.
Condition: Unknown
Due 21 November 1986
Resolved 21 November 1986
Documentation
Issued 21 November 1986 Resolved
MANNING TO BE REDUCED TO NOT MORE THAN TWELVE (12) PERSONS ON BOARD UNTIL COMPLEMENT OF LIFERAFTS HAVE BEEN RESTORED AS PER CERTIFICATE OF INSPECTION
Condition: Unknown
Due 21 November 1986
Resolved 21 November 1986
Construction/Loadline
Issued 21 November 1986 Resolved
CLEAN BATTERY TERMINALS, DE-WATER AND CLEAN BATTERY BOXES ON BOTH BOXES.
Condition: Unknown
Due 21 November 1986
Resolved 21 November 1986
Construction/Loadline
Issued 21 November 1986 Resolved
RENEW WEATHERTIGHT DOOR ON MUFFLER STACK HOUSE.
Condition: Unknown
Due 21 November 1986
Resolved 21 November 1986
Construction/Loadline
Issued 21 November 1986 Resolved
WELD PIN HOLE LEAK IN SEAM OF HIGH SUCTION SEA CHEST LOCATED STBDSIDE AFT: REPAIRS TO BE COMPLETED UPON NEXT RIG MOVE.
Condition: Unknown
Due 21 November 1986
Resolved 21 November 1986
Construction/Loadline
Issued 21 November 1986 Resolved
REMOVE DEAD END ELECTRICAL CABLES LOCATED ABOVE MUD PUMPS.
Condition: Unknown
Due 21 November 1986
Resolved 21 November 1986
Fire Fighting
Issued 21 November 1986 Resolved
REPAIR ALL DOGS ON ELEVATOR SHAFT AND ESCAPE LADDER HATCHES.
Condition: Unknown
Due 21 November 1986
Resolved 21 November 1986
Unknown
Issued 26 August 1985 Resolved
MAKE REPAIRS TO PUMP ROOM ELEVATOR. ELEVATOR TO BE WEIGHT TESTED PRIOR TO BEING PLACED IN OPERATION REF 46CFR107.231(CC) ;AND ANSIA17.1
Condition: Unknown
Due 26 August 1985
Resolved 26 August 1985
Unknown
Issued 20 November 1984 Resolved
PROVIDE CURRENT DOCUMENTATION PAPERS ABOARD THE RIG 46 CFR 10.
Condition: Unknown
Due 20 November 1984
Resolved 20 November 1984
Unknown
Issued 20 November 1984 Resolved
REPAIR OR REPLACE THE TACHOMETER ON THE #3 DC DIESEL 46 CFR 58.10-10.
Condition: Unknown
Due 20 November 1984
Resolved 20 November 1984
Unknown
Issued 20 November 1984 Resolved
THE FOLLOWING DEFICIENCIES PERTAIN TO THE VESSEL PENROD 51, DN535164 AND ARE TO BE COMPLIED WITH 31DEC84.
Condition: Unknown
Due 20 November 1984
Resolved 20 November 1984
Unknown
Issued 20 November 1984 Resolved
PROVIDE CURRENT FMC CERTIFICATE ABOARD THE RIG. 33 CFR 156.
Condition: Unknown
Due 20 November 1984
Resolved 20 November 1984
Construction/Loadline
Issued 20 November 1984 Resolved
REPAIR THE VESSEL'S DRAFT MARKS 46 CFR 108.661.
Condition: Unknown
Due 20 November 1984
Resolved 20 November 1984
Construction/Loadline
Issued 14 December 1983 Resolved
REPAIR HOLE IN CONTAINMENT AT PORT FUEL OIL TRANSFER STATION.
Condition: Unknown
Due 14 December 1983
Resolved 14 December 1983
Electrical
Issued 14 December 1983 Resolved
PROVIDE EMERGENCY LIGHTING AT LIFERAFT STATIONS FIVE AND SIX. 46 CFR 111.75-15(E)
Condition: Unknown
Due 14 December 1983
Resolved 14 December 1983
Lifesaving
Issued 14 December 1983 Resolved
PROVIDE ON ALL LIFESAVERS WHERE MISSING, PERSONAL MARKER LIGHTS AND WHIST- LES. 46 CFR 108.514.
Condition: Unknown
Due 14 December 1983
Resolved 14 December 1983
Unknown
Issued 14 December 1983 Resolved
ITEM 8 CONT: SWITCHES BY ELEVATOR AND MUDPITS.
Condition: Unknown
Due 14 December 1983
Resolved 14 December 1983
Unknown
Issued 14 December 1983 Resolved
THE FOLLOWING DEFICIENCIES PERTAIN TO THE VESSEL PENROD 51 DN535164
Condition: Unknown
Due 14 January 1984
Resolved 18 May 2002
Resolution: MISLE Maintenance - Resolved all open deficiencies issued prior to 6/1/1997 where activity was closed and deficiency due date was past
Electrical
Issued 14 December 1983 Resolved
MAKE SUITABLE FOR A HAZARDOUS AREA, THE TEMPERATIRE - SALINITY PROBES IN MUD PITS AND SHALESHAKERS; THE POWER JUNCTION BOX NEAR THE SHAKERS; AND THE
Condition: Unknown
Due 14 December 1983
Resolved 14 December 1983
Fire Fighting
Issued 14 December 1983 Resolved
PROVIDE B-II EXTINGUISHER IN VICINITY OF MUD CLEANER ENGINE.
Condition: Unknown
Due 14 December 1983
Resolved 14 December 1983
Construction/Loadline
Issued 14 December 1983 Resolved
REPAIR CRACKED WELD ON AFT BULKHEAD OF NUMBER 2 STARBOARD BALLAST TANK.
Condition: Unknown
Due 14 December 1983
Resolved 14 December 1983
Documentation
Issued 14 December 1983 Resolved
PRIVODE FUEL OIL TRANSFER PROCEDURES ON BOARD RIG. 33 CFR 156.
Condition: Unknown
Due 14 December 1983
Resolved 14 December 1983
Electrical
Issued 14 December 1983 Resolved
TEST GENERAL ALARMS THROUGHOUT RIG. 46 CFR 113.
Condition: Unknown
Due 14 December 1983
Resolved 14 December 1983
Lifesaving
Issued 14 December 1983 Resolved
CONDUCT FIRE AND BOAT DRILL. 46 CFR 109.213 AND 109.215.
Condition: Unknown
Due 14 December 1983
Resolved 14 December 1983
Unknown
Issued 18 October 1983 Resolved
THE FOLLOWING DEFICIENCY PERTAINS TO THE MODU PENROD 51, DN535164.
Condition: Unknown
Due 18 October 1983
Resolved 18 October 1983
Construction/Loadline
Issued 18 October 1983 Resolved
MAKE PERMANENT REPAIRS TO PORT FUEL TANK 2C HOLE IN OVERHEAD LOCATED 10 FT FROM THE AFTER END AND 1 FT FROM THE STARBOARD SIDE.
Condition: Unknown
Due 18 October 1983
Resolved 18 October 1983

Ownership record

The Coast Guard's documentation record for this hull -- the Abstract of Title, with its owners and liens as filed -- is not in PSIX. Ask, and Maury buys it from the National Vessel Documentation Center, files it here with its date, and every reader of this page gets it.