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PENROD 50

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

PENROD 50 is a 1958 mobile offshore drilling unit. The Coast Guard has recorded 15 inspections since 1981, most recently in April 1989, along with 25 deficiencies.

Records from 1981 to 1989. Most recent: inspection, 6 April 1989.

Built
1958
Last inspected
6 April 1989
Documentation
Not in the documentation file of 10 September 2026
Inspections
15
Deficiencies
25 recorded · 0 without a recorded resolution
Controls
None recorded without a removal date

Identity

US Official No.
663220
IMO number
—
Call sign
—
MISLE id
53316
Flag
UNITED STATES
MMSI
—
Maury page id
psix-53316

Inspections, by type

…physical examinations2
…administrative events2
…with no type recorded11
Years with a record 7 calendar years (1981–1989)
The 15 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 it4852 - Regulatory (Subpart C or D), Net Ton
4852 - Regulatory (Subpart C or D), Gross 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 · 15

6 April 1989 Permit to Proceed
Administrative · MSO PORT ARTHUR · USCG Heartland District (CGD-H) · Activity 1043195
12 December 1986 Administrative
Administrative · MSO PORT ARTHUR · USCG Heartland District (CGD-H) · Activity 1332047
18 November 1986 Type not recorded
No type recorded · MSO PORT ARTHUR · USCG Heartland District (CGD-H) · Activity 1324114
17 July 1986 Type not recorded
No type recorded · MSO PORT ARTHUR · USCG Heartland District (CGD-H) · Activity 987455
24 April 1986 Type not recorded
No type recorded · MSO PORT ARTHUR · USCG Heartland District (CGD-H) · Activity 999456
13 December 1985 Deficiency Check
Physical examination · MSO PORT ARTHUR · USCG Heartland District (CGD-H) · Activity 991712
6 November 1985 Re-Inspection
Physical examination · MSO PORT ARTHUR · USCG Heartland District (CGD-H) · Activity 991466
15 November 1984 Type not recorded
No type recorded · MIO NEW ORLEANS · USCG Heartland District (CGD-H) · Activity 1290158
30 July 1984 Type not recorded
No type recorded · MIO NEW ORLEANS · USCG Heartland District (CGD-H) · Activity 1280369
10 May 1984 Type not recorded
No type recorded · MIO NEW ORLEANS · USCG Heartland District (CGD-H) · Activity 1280365
30 December 1983 Type not recorded
No type recorded · MSO PORT ARTHUR · USCG Heartland District (CGD-H) · Activity 972367
27 December 1983 Type not recorded
No type recorded · MSO PORT ARTHUR · USCG Heartland District (CGD-H) · Activity 972361
7 November 1983 Type not recorded
No type recorded · MSO PORT ARTHUR · USCG Heartland District (CGD-H) · Activity 1277843
29 June 1982 Type not recorded
No type recorded · MSO PORT ARTHUR · USCG Heartland District (CGD-H) · Activity 963598
3 November 1981 Type not recorded
No type recorded · MIO NEW ORLEANS · USCG Heartland District (CGD-H) · Activity 1272785

Deficiency record · 25

Unknown
Issued 18 November 1986 Resolved
MAKE UNIT AVAILABLE FOR DRYDOCK EXAM OR SPECIAL UNDERWATER EXAM IN LIEU OF DRYDOCKING PRIOR TO RETURNING THE RIG TO SERVICE AND NO LATER THAN THE NEXTBIENNIAL INSPECTION. A PROPOSAL MEETING THE REQUIREMENTS OF 46 CFR 107.265MUST BE SUBMITTED 30 DAYS IN ADVANCE IF SPECIAL UNDERWATER EXAM IS PLANNED.
Condition: Unknown
Due 18 November 1986
Resolved 18 November 1986
Deck/Cargo
Issued 6 November 1985 Resolved
CONDUCT AN ANNUAL CRANE SURVEY ON BOTH THE PORT AND STARBOARD CRANES.
Condition: Unknown
Due 6 November 1985
Resolved 6 November 1985
Accommodation/Occupational Safety
Issued 6 November 1985 Resolved
INSTALL REMOTE OPERATING GEAR ON THE GENERATOR DAY TANK SUCTION VALVE, SUCHTHAT THE VALVE MAY BE CLOSED FROM OUTSIDE THE SPACE.
Condition: Unknown
Due 6 November 1985
Resolved 6 November 1985
Electrical
Issued 6 November 1985 Resolved
REMOVE OR REPAIR THE COOLING FAN ON THE BULK TANK AIR COMPRESSOR.
Condition: Unknown
Due 6 November 1985
Resolved 6 November 1985
Accommodation/Occupational Safety
Issued 6 November 1985 Resolved
PLACE A LABEL AND MANUFACTURER'S INSTRUCTIONS ON THE MARINE SANITATION DEVICE.
Condition: Unknown
Due 6 November 1985
Resolved 6 November 1985
Electrical
Issued 6 November 1985 Resolved
REPAIR AND TEST IN THE PRESENCE OF A COAST GUARD MARINE INSPECTOR THE #3 RIG SERVICE GENERATOR.
Condition: Unknown
Due 6 November 1985
Resolved 6 November 1985
Electrical
Issued 6 November 1985 Resolved
REMOVE OR PROPERLY END IN A JUNCTION BOX THE DEAD END CABLES ON THE #1 AND #2 DRILL WATER PUMPS, AND #1 AND #2 COOLING WATER PUMPS.
Condition: Unknown
Due 6 November 1985
Resolved 6 November 1985
Electrical
Issued 6 November 1985 Resolved
INSTALL A MUD PIT ROOM VENTILATION FAILURE ALARM PANEL AT A MANNED STATION.
Condition: Unknown
Due 6 November 1985
Resolved 6 November 1985
Unknown
Issued 7 November 1983 Resolved
PRIOR TO DEPARTING PORT, REPLACE THE DETERIORATED WIND DIRECTION INDICATOR.
Condition: Unknown
Due 7 November 1983
Resolved 7 November 1983
Unknown
Issued 7 November 1983 Resolved
REPLACE THE FIRE HOSE AT STATION NUMBER 14 PRIOR TO DEPARTING PORT.
Condition: Unknown
Due 7 November 1983
Resolved 7 November 1983
Unknown
Issued 7 November 1983 Resolved
INSTALL NUMBER 2 AND DEMONSTRATE THE PROPER OPERATION OF RELIEF VALVES FOR THE NUMBER 1 AND FIRE PUMPS PRIOR TO DEPARTING PORT.
Condition: Unknown
Due 7 November 1983
Resolved 7 November 1983
Unknown
Issued 7 November 1983 Resolved
REPAIR THE PURGE ALARM ON THE DRILLERS CONSOLE PRIOR TO DEPARTING PORT.
Condition: Unknown
Due 7 November 1983
Resolved 7 November 1983
Unknown
Issued 7 November 1983 Resolved
MAKE ALL AIR RECEIVERS AVAILABLE FOR INTERNAL EXAMINATION PRIOR TO DEPARTING PORT.
Condition: Unknown
Due 7 November 1983
Resolved 7 November 1983
Unknown
Issued 7 November 1983 Resolved
REPAIR THE DOOR BETWEEN THE MUDPIT AND THE ENGINE ROOM PRIOR TO DEPARTING PORT.
Condition: Unknown
Due 7 November 1983
Resolved 7 November 1983
Unknown
Issued 7 November 1983 Resolved
DEMONSTRATE THE SATISFACTORY OPERATION OF THE RELIEF VALVES ON ALL PRESSUREVESSELS PRIOR TO DEPARTING PORT.
Condition: Unknown
Due 7 November 1983
Resolved 7 November 1983
Unknown
Issued 7 November 1983 Resolved
DEMONSTRATE THE PROPER OPERATION OF THE GENERATOR OVERSPEED TRIPS AND FREQUENCY METERS PRIOR TO DEPARTING PORT.
Condition: Unknown
Due 7 November 1983
Resolved 7 November 1983
Unknown
Issued 7 November 1983 Resolved
REPLACE THE INOPERATIVE FIRE NOZZLE AT FIRE STATION NUMBER 9 PRIOR TO DEPARTING PORT.
Condition: Unknown
Due 7 November 1983
Resolved 7 November 1983
Unknown
Issued 7 November 1983 Resolved
REPAIR THE LEAKING VALVE AT FIRE STATION NUMBER 15 PRIOR TO DEPARTING PORT.
Condition: Unknown
Due 7 November 1983
Resolved 7 November 1983
Unknown
Issued 7 November 1983 Resolved
PRIOR TO DEPARTING PORT, MAKE REPAIRS TO THE DETERIORATED BOTTOM PLATING INWAY OF THE ENGINE ROOM AND PUMP ROOM SUMPS.
Condition: Unknown
Due 7 November 1983
Resolved 7 November 1983
Unknown
Issued 7 November 1983 Resolved
REPAIR THE EMERGENCY LIGHTING RELAY FOR THE MACHINERY SPACES PRIOR TO DEPARTING PORT.
Condition: Unknown
Due 7 November 1983
Resolved 7 November 1983
Unknown
Issued 7 November 1983 Resolved
PROVIDE TWO SERVICE LINES AND ONE AUXILIARY LINE FOR THE LINE THROWING GUN.
Condition: Unknown
Due 7 November 1983
Resolved 7 November 1983
Unknown
Issued 7 November 1983 Resolved
PRIOR TO DEPARTING PORT, CONDUCT A FIRE AND ABANDON RIG DRILL IN THE PRESENCE OF A COAST GUARD INSPECTOR.
Condition: Unknown
Due 7 November 1983
Resolved 7 November 1983
Unknown
Issued 7 November 1983 Resolved
THE FOLLOWING DEFICIENCIES ARE FOR THE PENDROD 50, CG000146.
Condition: Unknown
Due 7 November 1983
Resolved 7 November 1983
Unknown
Issued 7 November 1983 Resolved
PRIOR TO DRILLING CONDUCT A SPECIAL EXAM IN LIEU OF DRYDOCKING IN ACCORD- ANCE WITH APPROVED PROCEDURES.
Condition: Unknown
Due 7 November 1983
Resolved 7 November 1983
Unknown
Issued 7 November 1983 Resolved
SERVICE ALL LIFERAFTS AND ASSOCIATED RELEASE MECHANISMS PRIOR TO DEPARTING PORT.
Condition: Unknown
Due 7 November 1983
Resolved 7 November 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.