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ROBERT S. PIERSON
Freight Ship · Bulk Carrier class · Built 1970s · USCG Great Lakes District (CGD-GL) · Other hulls named ROBERT S. PIERSON
ROBERT S. PIERSON is a 1974 freight ship. The Coast Guard has recorded 34 inspections since 2008, most recently in June 2026, along with 8 deficiencies and 2 operational controls.
Records from 2008 to 2026. Most recent: inspection, 25 June 2026.
- Built
- 1974
- Last inspected
- 25 June 2026
- Documentation
- Not in the documentation file of 10 September 2026
- Deficiencies
- 8 recorded · 0 without a recorded resolution
- Controls
- None recorded without a removal date
Identity
7366403 View on MarineTraffic leaves Maury; a third-party site, nothing from it is stored here
CFN4934
983828
Flag
CANADA
—
Maury page id
psix-983828
Inspections, by type
…with no type recorded7
Years with a record
12 calendar years (2008–2026)
The 34 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.
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 Bulk Carrier class in Maury's sources begin in 1981.
Documentation record
Tonnage as PSIX records it6269 - Regulatory (Subpart C or D), Net Ton
19916 - Dead Weight, Ton
10037 - Regulatory (Subpart C or D), Gross Ton
19916 - Dead Weight, Ton
10037 - 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.
Inspection history · 34
25 June 2026
Deficiency Check · Administrative Inspection
Physical examination · Sector Detroit · USCG Great Lakes District (CGD-GL) · Activity 8413529
28 May 2026
Canadian Vsl Safety Exam (D9 only) · PSC B
Physical examination · Sector Northern Great Lakes · USCG Great Lakes District (CGD-GL) · Activity 8382539
4 December 2025
Deficiency Check · Administrative Inspection
Physical examination · Sector Northern Great Lakes · USCG Great Lakes District (CGD-GL) · Activity 8277665
27 November 2025
Deficiency Check · In-Service Inspection
Physical examination · Sector Detroit · USCG Great Lakes District (CGD-GL) · Activity 8274716
27 November 2025
Type not recorded
No type recorded · Sector Detroit · USCG Great Lakes District (CGD-GL) · Activity 8276125
20 November 2025
PSC B · Canadian Vsl Safety Exam (D9 only)
Physical examination · Marine Safety Unit Sturgeon Bay · USCG Great Lakes District (CGD-GL) · Activity 8271974
13 May 2025
Administrative Inspection
Administrative · Marine Safety Unit Toledo · USCG Great Lakes District (CGD-GL) · Activity 8134929
12 May 2025
PSC B · MARPOL Annex I Examination · Canadian Vsl Safety Exam (D9 only)
Physical examination · Sector Northern Great Lakes · USCG Great Lakes District (CGD-GL) · Activity 8133186
8 May 2025
Administrative Inspection
Administrative · Marine Safety Unit Toledo · USCG Great Lakes District (CGD-GL) · Activity 8131074
29 April 2025
In-Service Inspection
Physical examination · Marine Safety Unit Toledo · USCG Great Lakes District (CGD-GL) · Activity 8126749
26 April 2025
Administrative Inspection
Administrative · Sector Northern Great Lakes · USCG Great Lakes District (CGD-GL) · Activity 8120565
23 April 2025
Administrative Inspection
Administrative · Sector Northern Great Lakes · USCG Great Lakes District (CGD-GL) · Activity 8121497
7 December 2024
Deficiency Check
Physical examination · Marine Safety Unit Toledo · USCG Great Lakes District (CGD-GL) · Activity 8044462
6 November 2024
In-Service Inspection
Physical examination · Marine Safety Unit Duluth · USCG Great Lakes District (CGD-GL) · Activity 8031403
6 November 2024
Type not recorded
No type recorded · Marine Safety Unit Duluth · USCG Great Lakes District (CGD-GL) · Activity 8045884
4 November 2024
Canadian Vsl Safety Exam (D9 only) · PSC B
Physical examination · Marine Safety Unit Duluth · USCG Great Lakes District (CGD-GL) · Activity 8028820
18 October 2024
Type not recorded
No type recorded · Sector Northern Great Lakes · USCG Great Lakes District (CGD-GL) · Activity 8021307
13 October 2024
Type not recorded
No type recorded · Sector Northern Great Lakes · USCG Great Lakes District (CGD-GL) · Activity 8022909
8 June 2023
Canadian Vsl Safety Exam (D9 only) · PSC B
Physical examination · Marine Safety Unit Toledo · USCG Great Lakes District (CGD-GL) · Activity 7710332
16 June 2021
Canadian Vsl Safety Exam (D9 only) · PSC B
Physical examination · Marine Safety Unit Toledo · USCG Great Lakes District (CGD-GL) · Activity 7226355
29 May 2020
Type not recorded
No type recorded · Sector Detroit · USCG Great Lakes District (CGD-GL) · Activity 6963374
28 May 2020
Deficiency Check · In-Service Inspection
Physical examination · Sector Detroit · USCG Great Lakes District (CGD-GL) · Activity 6962536
13 May 2020
Administrative Inspection
Administrative · Marine Safety Unit Toledo · USCG Great Lakes District (CGD-GL) · Activity 6952483
6 January 2020
Administrative Inspection
Administrative · Sector Detroit · USCG Great Lakes District (CGD-GL) · Activity 6883649
21 October 2019
Canadian Vsl Safety Exam (D9 only)
Physical examination · Marine Safety Unit Cleveland · USCG Great Lakes District (CGD-GL) · Activity 6838478
9 April 2019
Deficiency Check
Physical examination · Sector Detroit · USCG Great Lakes District (CGD-GL) · Activity 6658684
28 December 2018
Type not recorded
No type recorded · Sector Detroit · USCG Great Lakes District (CGD-GL) · Activity 6603423
24 December 2018
Administrative Inspection
Administrative · Sector Detroit · USCG Great Lakes District (CGD-GL) · Activity 6602678
12 October 2018
Canadian Vsl Safety Exam (D9 only)
Physical examination · Marine Safety Unit Toledo · USCG Great Lakes District (CGD-GL) · Activity 6559321
26 August 2018
Type not recorded
No type recorded · Sector Northern Great Lakes · USCG Great Lakes District (CGD-GL) · Activity 6547585
6 September 2017
Canadian Vsl Safety Exam (D9 only)
Physical examination · Marine Safety Unit Cleveland · USCG Great Lakes District (CGD-GL) · Activity 6259591
1 September 2016
Administrative Inspection · Canadian Vsl Safety Exam (D9 only)
Physical examination · Marine Safety Unit Toledo · USCG Great Lakes District (CGD-GL) · Activity 5989279
1 September 2015
Canadian Vsl Safety Exam (D9 only)
Physical examination · Marine Safety Unit Toledo · USCG Great Lakes District (CGD-GL) · Activity 5232312
16 September 2008
PII Safety Exam · ISPS III Exam · MTSA/ISPS Verification
Physical examination · Marine Safety Unit Duluth · USCG Great Lakes District (CGD-GL) · Activity 3326100
Deficiency record · 8
07 - Fire Safety › N/A - No Subsystem › Fire doors/openings in fire-resisting divisions
Issued 20 November 2025
Resolved
Interior stairways below the weather deck shall be of steel or other suitable material. Crew lift trunks within accommodation shall be of steel or equivalent material. PSCO observed pipe penetration without fire sealant surrounding it and a separate hole approximately one inch in diameter in the crew staircase near fire station 12 both of which were not in accordance with the approved fire control plan and the Class A boundary requirements.
07 - Fire Safety › N/A - No Subsystem › Fire doors/openings in fire-resisting divisions
Issued 20 November 2025
Resolved
Interior stairways below the weather deck shall be of steall or other suitable material. Crew lift trunks within accommadation shall be of steel or equivalent material. PSCO observed the fire doors on the Spar deck leading to the deack above on the port side near fire station 12 was being held open and subsequently would not latch completely. The fire door exiting from the Engine Room would not close or latch completely. Per the approved fire control plan, both doors are to be self closing and A Class.
02 - Structural Conditions › N/A - No Subsystem › Ballast, fuel and other tanks
Issued 6 November 2024
Resolved
An inspection either general or partial depending upon the circumstances shall be made whenever any important repairs or alterations are undertaken. Vessel reported that the number three port ballast tank was taking on water at or near the centerline bottom plating. Vessel shall ensure that appropriate repairs are completed and verified to the satisfaction of the vessel's classification society.
07 - Fire Safety › N/A - No Subsystem › Fire pumps and its pipes
Issued 5 November 2024
Resolved
The respective piping systems installed on ships must have the neccessary valves for the safe and efficent operation of the vessel. Valve on port side near cargo hatch 18 leaking while in closed position.
09 - Working and Living Conditions › 092 - Working Conditions › Electrical
Issued 5 November 2024
Resolved
Electrical installations on vessel must ensure protection of passengers, crew and other person and the vessel from electrical hazards. Trunk space housing cable run missing cover.
02 - Structural Conditions › N/A - No Subsystem › Hull - cracking
Issued 8 June 2023
Resolved
02113 - THE GENERAL STRUCTURAL STRENGTH OF THE HULL MUST BE SUFFICIENT FOR THE DRAUGHT CORRESPONDING TO THE FREEBOARD ASSIGNED AND MUST BE APPROVED BY THE COMMANDANT. SHIPS BUILT AND MAINTAINED IN CONFORMITY WITH THE REQUIREMENTS OF A CLASSIFICATION SOCIETY MAY BE RECOGNIZED BY THE COMMANDANT AS POSSESSING ADEQUATE STRENGTH. MV ROBERT S PIERSON DISCOVERED A CRACK ON THE FORWARD PORT QUARTER APPROXIMATELY 5 INCHES IN LENGTH.
46 CFR 45.107, 17ac
13 - Propulsion and Auxiliary Machinery › N/A - No Subsystem › Propulsion main engine
Issued 28 May 2020
Resolved
33 CFR 160.216-40AC-Vessel has recently reported that the starboard engine has a crack in the cylinder liner and the vessel is transiting at reduced speed on one engine. Vessel is authorized to transit to Motor City Dock in the Detroit River to offload and then proceed to Canada to effect repairs. After returning to Canadian waters and prior to re-entry into U.S. waters, the vsl shall provide for class attendance to confirm repairs as original to the stbd main engine. If continued transit on one main engine is desired vsl shall coordinate with sector detroit for approval to operate within U.S. waters.
13 - Propulsion and Auxiliary Machinery › N/A - No Subsystem › Propulsion main engine
Issued 24 December 2018
Resolved
1410 - Propulsion Main Engine - All installations shall be of marine type engines suitable for the intended service, design and constructed in conformance with the requirements of this subchapter.
The Port main engine suffered a crank shaft failure resulting in the vessel operating solely on the Starboard engine. The vessel may operate under reduced propulsion for 60 days in accordance with D9INST 16711.1, as long as the vessel is capable of maintaining safe speed and steerage for prevailing or anticipated conditions. The vessel must also have a fully functional bow thruster, two fully operational generators, and the Master and Chief Engineer must provide Sector Detroit with a written statement attesting to the vessel's capability to maneuver properly as well as the suitability of the reduced propulsion machinery to generate thrust.
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.