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AI 503
Tank Barge · Barge class · Built 1990s · USCG Heartland District (CGD-H) · MARATHON PETROLEUM COMPANY, LP operator of record, 2023
AI 503 is a 1996 tank barge. The Coast Guard has recorded 59 inspections since 1996, most recently in December 2025, along with 6 deficiencies.
Records from 1996 to 2025. Most recent: inspection, 16 December 2025.
- Built
- 1996
- Last inspected
- 16 December 2025
- Documentation
- Not in the documentation file of 10 September 2026
- Deficiencies
- 6 recorded · 0 without a recorded resolution
- Controls
- None recorded without a removal date
Identity
1038593
434886
Flag
UNITED STATES
—
Maury page id
psix-434886
Inspections, by type
…with no type recorded14
Years with a record
29 calendar years (1996–2025)
The 59 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 Barge class in Maury's sources begin in 1972.
Documentation record
Tonnage as PSIX records it1619 - Simplified, Gross Ton
1619 - Simplified, Net Ton
1619 - Simplified, 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.
Inspected as a tow unit · 1
The Coast Guard recorded this vessel and the following in the same inspection activity — normally a tug and the barges in its tow. A recreational or unclassed hull in the same activity is held and not published, so it does not appear here: these lists are a floor, not a complete manifest.
PAUL G BLAZER Towing Vessel · MISLE 292987 · 13 September 2001 · activity 140176Inspection history · 59
16 December 2025
Drydock Exam · Internal Structural Exam · Cargo Tank Internal · Deficiency Check · COI Inspection
Physical examination · Marine Safety Unit Paducah · USCG Heartland District (CGD-H) · Activity 8278174
10 September 2024
Administrative Inspection
Administrative · Marine Safety Unit Huntington · USCG Heartland District (CGD-H) · Activity 8010231
27 February 2023
Bulk Liquid Transfer Monitor
Physical examination · Marine Safety Detachment Nashville · USCG Heartland District (CGD-H) · Activity 7642468
5 August 2021
Annual Inspection · MTSA Verification
Physical examination · Marine Safety Unit Huntington · USCG Heartland District (CGD-H) · Activity 7277806
3 August 2021
Bulk Liquid Transfer Monitor
Physical examination · Marine Safety Unit Huntington · USCG Heartland District (CGD-H) · Activity 7276174
13 October 2020
COI Inspection · MTSA Verification · Internal Structural Exam
Physical examination · Marine Safety Unit Huntington · USCG Heartland District (CGD-H) · Activity 7077727
16 October 2019
MTSA Verification · Annual Inspection
Physical examination · Marine Safety Unit Huntington · USCG Heartland District (CGD-H) · Activity 6835732
19 November 2018
Annual Inspection · MTSA Verification
Physical examination · Marine Safety Unit Huntington · USCG Heartland District (CGD-H) · Activity 6583585
5 March 2018
Deficiency Check · Examination of Repairs
Physical examination · Marine Safety Unit Huntington · USCG Heartland District (CGD-H) · Activity 6368400
8 February 2018
Damage Survey · Administrative Inspection
Physical examination · Marine Safety Unit Paducah · USCG Heartland District (CGD-H) · Activity 6352242
28 September 2017
MTSA Verification · Periodic Inspection · Administrative Inspection
Physical examination · Marine Safety Unit Paducah · USCG Heartland District (CGD-H) · Activity 6277180
21 October 2016
Annual Inspection · Administrative Inspection · MTSA Verification
Physical examination · Marine Safety Unit Paducah · USCG Heartland District (CGD-H) · Activity 6028519
2 November 2015
Cargo Tank Internal · Internal Structural Exam · Drydock Exam · COI Inspection
Physical examination · Marine Safety Unit Huntington · USCG Heartland District (CGD-H) · Activity 5755848
8 April 2015
Type not recorded
No type recorded · Sector Ohio Valley · USCG Heartland District (CGD-H) · Activity 5100264
25 February 2015
Administrative Inspection
Administrative · Marine Safety Unit Huntington · USCG Heartland District (CGD-H) · Activity 5074678
7 November 2014
Annual Inspection · MTSA Verification
Physical examination · Marine Safety Unit Huntington · USCG Heartland District (CGD-H) · Activity 5019507
18 September 2013
Periodic Inspection · MTSA Verification
Physical examination · Marine Safety Unit Huntington · USCG Heartland District (CGD-H) · Activity 4717715
9 August 2012
MTSA Verification · Annual Inspection
Physical examination · Marine Safety Unit Huntington · USCG Heartland District (CGD-H) · Activity 4418856
13 June 2012
Type not recorded
No type recorded · Marine Safety Unit Huntington · USCG Heartland District (CGD-H) · Activity 4343887
24 February 2012
Type not recorded
No type recorded · Marine Safety Unit Pittsburgh · USCG Heartland District (CGD-H) · Activity 4251622
24 August 2011
Annual Inspection · MTSA Verification
Physical examination · Marine Safety Unit Huntington · USCG Heartland District (CGD-H) · Activity 4126449
22 August 2011
Type not recorded
No type recorded · Marine Safety Unit Huntington · USCG Heartland District (CGD-H) · Activity 4124587
1 November 2010
COI Inspection · MTSA Verification · Internal Structural Exam
Physical examination · Marine Safety Unit Huntington · USCG Heartland District (CGD-H) · Activity 3891635
14 December 2009
COI Inspection · MTSA Verification
Physical examination · Marine Safety Unit Huntington · USCG Heartland District (CGD-H) · Activity 3650694
28 September 2009
Type not recorded
No type recorded · Marine Safety Detachment Cincinnati · USCG Heartland District (CGD-H) · Activity 3604888
22 October 2008
MTSA Verification · Annual Inspection
Physical examination · Marine Safety Unit Huntington · USCG Heartland District (CGD-H) · Activity 3349478
8 November 2007
Examination of Repairs · MTSA Verification · Deficiency Check · Periodic Inspection
Physical examination · Marine Safety Unit Huntington · USCG Heartland District (CGD-H) · Activity 3104645
31 October 2006
Annual Inspection
Physical examination · Marine Safety Unit Huntington · USCG Heartland District (CGD-H) · Activity 2811565
11 April 2006
Security Plan Amendment Review - VSP
Administrative · Marine Safety Center (MSC) · Activity 2622033
16 February 2006
Hull Examination · Internal Structural Exam · Cargo Tank Internal
Physical examination · Marine Safety Unit Huntington · USCG Heartland District (CGD-H) · Activity 2586593
21 November 2005
Annual Inspection
Physical examination · Marine Safety Unit Huntington · USCG Heartland District (CGD-H) · Activity 2538237
4 August 2005
Security Plan Amendment Review - VSP
Administrative · Marine Safety Center (MSC) · Activity 2451263
28 March 2005
Security Plan Amendment Review - VSP
Administrative · Marine Safety Center (MSC) · Activity 2321349
18 March 2005
MTSA Verification
Physical examination · MSO HUNTINGTON · USCG Heartland District (CGD-H) · Activity 2320172
14 February 2005
Administrative Inspection
Administrative · MSO HUNTINGTON · USCG Heartland District (CGD-H) · Activity 2292324
14 January 2005
COI Inspection
Physical examination · MSO HUNTINGTON · USCG Heartland District (CGD-H) · Activity 2274728
10 November 2004
Security Plan Amendment Review - VSP
Administrative · Marine Safety Center (MSC) · Activity 2238756
18 March 2004
Type not recorded
No type recorded · MSO HUNTINGTON · USCG Heartland District (CGD-H) · Activity 2028941
30 December 2003
Security Plan Review - VSP
Administrative · Marine Safety Center (MSC) · Activity 1984349
20 November 2003
Annual Inspection
Physical examination · MSO HUNTINGTON · USCG Heartland District (CGD-H) · Activity 1951676
14 January 2003
Periodic Inspection
Physical examination · MSO HUNTINGTON · USCG Heartland District (CGD-H) · Activity 1730287
3 July 2002
Type not recorded
No type recorded · MSO HUNTINGTON · USCG Heartland District (CGD-H) · Activity 1643369
2 January 2002
Annual Inspection
Physical examination · MSO HUNTINGTON · USCG Heartland District (CGD-H) · Activity 1474870
13 September 2001
Type not recorded
No type recorded · MSO HUNTINGTON · USCG Heartland District (CGD-H) · Activity 140176
20 August 2001
Type not recorded
No type recorded · MSO HUNTINGTON · USCG Heartland District (CGD-H) · Activity 534761
19 March 2001
Hull Examination
Physical examination · MSO HUNTINGTON · USCG Heartland District (CGD-H) · Activity 1060826
17 January 2001
Re-Inspection
Physical examination · MSO HUNTINGTON · USCG Heartland District (CGD-H) · Activity 1057088
6 March 2000
Type not recorded
No type recorded · MSO HUNTINGTON · USCG Heartland District (CGD-H) · Activity 491494
24 February 2000
COI Inspection
Physical examination · MSO HUNTINGTON · USCG Heartland District (CGD-H) · Activity 1451512
28 February 1999
Type not recorded
No type recorded · MSO HUNTINGTON · USCG Heartland District (CGD-H) · Activity 537050
26 January 1999
Re-Inspection
Physical examination · MSO HUNTINGTON · USCG Heartland District (CGD-H) · Activity 789967
6 May 1998
Administrative
Administrative · MSO HUNTINGTON · USCG Heartland District (CGD-H) · Activity 793321
12 April 1998
Type not recorded
No type recorded · MSO HUNTINGTON · USCG Heartland District (CGD-H) · Activity 483926
27 March 1998
COI Inspection
Physical examination · MSO HUNTINGTON · USCG Heartland District (CGD-H) · Activity 1445327
30 December 1997
Administrative
Administrative · MSO LOUISVILLE · USCG Heartland District (CGD-H) · Activity 1117816
7 May 1997
Type not recorded
No type recorded · Marine Safety Detachment Cincinnati · USCG Heartland District (CGD-H) · Activity 539551
5 April 1997
Re-Inspection
Physical examination · MSO HUNTINGTON · USCG Heartland District (CGD-H) · Activity 1094132
9 May 1996
Type not recorded
No type recorded · MSO Pittsburgh · USCG Heartland District (CGD-H) · Activity 516841
11 April 1996
COI Inspection · Hull Examination
Physical examination · MSO LOUISVILLE · USCG Heartland District (CGD-H) · Activity 1079071
Deficiency record · 6
13 - Propulsion and Auxiliary Machinery › N/A - No Subsystem › Gauges, thermometers, etc
Issued 16 October 2019
Resolved
The needle for one of the gauges was missing one end preventing the viewer to know the actual value of the gauge.
14 - Pollution Prevention › 141 - MARPOL Annex I › Oil and oily mixtures from machinery spaces
Issued 19 November 2018
Resolved
Excess oil found in the containment under the barge engine and on the engine itself.
Construction/Loadline › Hull › Side Shell
Issued 8 February 2018
Resolved
6 x 1.5 inch hole above bilge knuckle below the kevil.
Construction/Loadline › Hull › Side Shell
Issued 8 November 2007
Resolved
Make permanent repairs to 13" fracture in port headlog corner wrapper.
Deck/Cargo › Holds/Tanks › Hatch Cover
Issued 14 January 2003
Resolved
Starboard #2 butterworth hatch gasket was wasted and required replacement.
Deck/Cargo › Cargo Transfer/Lightering (liquid) › Emergency Shut-down
Issued 14 January 2003
Resolved
The cargo pump prime mover did not shut down properly when cable was pulled.
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.