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The U.S. Coast Guard has disclosed a serious machinery and cargo-safety failure aboard the 112,827-dwt crude oil tanker KALAHARI, with both auxiliary boilers out of service and the vessel's inert-gas system inoperable near Pascagoula, Mississippi. In a temporary rule published October 30, 2026, the Captain of the Port, Sector Mobile, identifies an increased risk of fire or explosion and establishes a 1,000-meter safety zone around the tanker while repairs are undertaken at anchorage. The Coast Guard was notified of the problem October 12, and an earlier navigation bulletin had already warned mariners of restrictions around the vessel. The latest federal rule runs through December 27, but actual enforcement ends when repairs are completed. The ship's cargo condition, cause of the boiler failures, repair costs and confirmed return-to-service date remain undisclosed.
Two Disabled Boilers. One Critical Safety System Unavailable.
A 112,827-dwt crude tanker faces a Coast Guard exclusion zone after a machinery failure left its inert-gas system inoperable.
The reported machinery-to-safety failure chain
Coast Guard identifies both auxiliary boilers as out of service. The failure causes and sequence are not disclosed.
The agency reports the resulting inert-gas-system outage. Tank oxygen levels and pressure are not published.
Captain of the Port establishes a temporary restricted area around the vessel during repairs.
What a 1,000-meter exclusion radius means
The restricted water area
3.14 km² Calculated area of a full 1,000 m radius circle 2.0 km Full diameter, approximately 1.08 nautical miles 30°05.533′ N 88°24.958′ W Approximate position stated in the federal ruleSources: USCG temporary final rule 33 CFR 165.T08-0467; vessel particulars cross-checked against Gard and VesselFinder. Circle area is a ShipUniverse geometric calculation.
The Two-Week Warning Before the Federal Rule
An earlier navigation bulletin shows the tanker safety-zone issue was already circulating before the October 30 Federal Register publication.
Documented chronology
What can be confirmed, and what still needs evidence?
| Issue | Documented information | Operational or investigative question | Evidence status |
|---|---|---|---|
| Machinery availability | Both auxiliary boilers reported out of service. | What components failed? Did the two outages share a cause or occur sequentially? | ESTABLISHED |
| Inert-gas capability | System reported inoperable as a result of the boiler outages. | What independent backup, if any, was available? What restoration and test sequence is required? | ESTABLISHED |
| Cargo-tank atmosphere | Coast Guard cites increased fire or explosion risk. | Actual tank oxygen content, positive pressure, cargo residues and monitoring results are unavailable. | NOT DISCLOSED |
| Cargo carried | The ship is identified independently as a crude oil tanker. | Was the tanker loaded, in ballast, washed or gas-free when the defect was reported? | NOT DISCLOSED |
| Coast Guard controls | 1,000 m radius exclusion zone with entry subject to authorization. | Were other movement, cargo-transfer or operational restrictions separately imposed? | CONDITIONAL |
| Repair work | Repairs to boilers and the inert-gas system are contemplated at anchorage. | Which specialists, materials and inspections are needed, and when will repairs be accepted? | NOT DISCLOSED |
| Anchorage traffic | Unapproved vessel and personnel entry within the safety zone is restricted. | How many other anchorage positions or commercial movements are actually affected? | NOT DISCLOSED |
| Commercial exposure | No repair value, off-hire claim or voyage-loss amount appears in the rule. | Charter terms determine who bears hire, schedule or service costs. | CONDITIONAL |
| Return to service | Enforcement is tied to arrival and completion of repair work, with notices to mariners. | Actual repairs, testing, subsequent permissions and voyage resumption are not confirmed. | NOT DISCLOSED |
The immediate practical issue is maintaining clearance from the restricted area unless specifically authorized by Coast Guard Sector Mobile. This is a defined vessel-centered exclusion zone, not a declared closure of the entire Port of Pascagoula.
The decisive technical issue is restoration and verification of cargo-tank atmosphere control. The financial consequences cannot be established without cargo condition, downtime and charter-party information.
Sources: USCG Federal Register rule and USACE-related October 15 navigation bulletin. The uncertainty column is editorial research analysis, not an assertion that an incident, breach or loss has occurred.
What Could a Tanker's Inert-Gas Failure Cost?
Test repair expense, lost earning potential and offshore support costs across alternative downtime scenarios.
Set the vessel scenario
Foregone contribution plus entered incremental costs. Not a reported casualty loss, booked expense or insurance claim.
Where the modeled exposure comes from
Downtime versus earnings sensitivity
Combined illustrative exposure, keeping selected direct costs and loss-share factor unchanged. Daily contribution scenarios are assumptions.
| Downtime | $50K / day | $100K / day | $200K / day |
|---|---|---|---|
| 5 days | |||
| 10 days | |||
| 20 days |
Government reference: USCG temporary final rule 2026-22269. Financial scenarios are illustrative ShipUniverse inputs and are not attributed to the tanker owner, manager, insurer or Coast Guard.
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