Classification
- Incident type: Grounded
- Severity: High
- Region: Netherlands
- Investigation body: Raad voor de Scheepvaart
Vessel Details
| Field | Value |
|---|---|
| Vessel Name | Pioner Onegi |
| Vessel Type | General Cargo |
| Flag State | Russia [RU] |
| IMO Number | 7524354 |
| LOA (m) | 130.30 |
| Owner | Northern Shipping Company, Archangelsk |
| Cargo | Containers and general cargo |
Incident Details
| Field | Value |
|---|---|
| Date | 1994-12-08 |
| Location | Nauw van Bath, Westerschelde, near Westketel |
| Region | Netherlands |
| Coordinates | 74.3478, 37.8099 |
Key facts
- The ruling states that the vessel's stability was too low before the list developed. It records a departure condition about 32 cm deeper than the permitted Plimsoll mark, equivalent to approximately 540 tonnes of overloading.
- Three tiers of full deck containers, including containers heavier than permitted by the vessel's loading manual, were stowed above holds 3 and 4.
- In the Nauw van Bath, the vessel developed an increasing starboard list, left the fairway, grounded between buoys 75 and 75A, and later came against the sandbank near Westketel.
- The list increased to about 60 to 70 degrees while the vessel was held by tugs. Some deck containers fell overboard. The ruling states that the vessel suffered mainly water damage and that only part of the cargo entered the water; it records no serious environmental damage.
- The reviewed ruling does not provide a separate casualty count or a normalized financial damage estimate.
Narrative
Pioner Onegi arrived in Antwerp on 6 December 1994 and loaded additional containers and general cargo. The Raad's ruling records that the stowage plan was changed and that three tiers of full containers were placed on deck above holds 3 and 4. The vessel left Antwerp on 8 December under river-pilotage. Witnesses observed a starboard list before the vessel reached the Nauw van Bath, and a strong south to south-southwesterly wind was reported at about force 8 to 9 Beaufort.
During the approach to the Bath turn, the vessel was already showing signs of poor stability. When the pilot ordered a port turn, the ship responded strongly and continued turning. Increasing starboard rudder was used to check the turn, but the vessel developed a list of about 45 degrees and could not right itself. The Raad concluded that the vessel had insufficient stability before the manoeuvre. The wind acting across the vessel, the low freeboard, the rudder forces and the speed of the turn increased the heeling moment. Once the starboard deck went under water, water accumulated on deck and further reduced stability.
Pioner Onegi grounded between buoys 75 and 75A and was then moved by current and wind across the fairway. It passed over buoy 75 and came against the sandbank near the Westketel light structure. Tugs Hoboken, Union 5, and Burcht held the vessel against the sandbank while the crew and pilot were evacuated. The list later reached approximately 60 to 70 degrees, and containers fell from the deck during the evening.
The Raad's analysis found that the vessel had been loaded about 32 cm over its permitted mark, corresponding to about 540 tonnes, and that the calculated stability values were below the relevant minimum values. The ruling states that the master sailed with a vessel of insufficient stability and that the loading arrangement was contrary to the ship's own container-loading instructions. The vessel remained sufficiently intact to limit the consequences: part of the cargo entered the water and the ship suffered mainly water damage.
Sequence of events
| Stage | Event |
|---|---|
| 1994-12-08 morning | Pioner Onegi departed Antwerp and proceeded toward the Boudewijnsluis and the Westerschelde under pilotage. |
| Before the Bath turn | Witnesses observed a starboard list and the vessel's low freeboard. |
| During the Nauw van Bath turn | The vessel continued turning, developed a list of about 45 degrees, and could not right itself. |
| Later that morning | Pioner Onegi grounded between buoys 75 and 75A and then drifted across the fairway. |
| After the drift | The vessel came against the sandbank near Westketel and was held by tugs. |
| 1994-12-08 evening | The list increased to about 60 to 70 degrees and deck containers fell overboard. |
Contributing factors
| Factor | Evidence status | Description |
|---|---|---|
| Insufficient stability | Confirmed finding | The Raad concluded that the vessel could not right itself because its stability was too low before the list developed. |
| Overloading and deck stowage | Confirmed finding | The vessel was about 32 cm over its permitted mark, and heavy full containers were placed in an unauthorized third deck tier. |
| Wind, freeboard, and manoeuvring forces | Confirmed finding | Strong crosswind, low freeboard, speed, and rudder forces increased the heeling moment; water on deck then further reduced stability. |
Investigation
The Raad voor de Scheepvaart issued its ruling in 1996 after reviewing police records, radar recordings, witness evidence, stability data, and related nautical material. It attributed the casualty to inadequate stability rather than to a preceding collision or grounding. The ruling also discusses the master's responsibility for departing with insufficient stability and the pilot's reporting duty concerning an overloaded vessel. Casualty totals and monetary damage are not stated in the reviewed ruling.
References
- Raad voor de Scheepvaart ruling: Pioner Onegi
- Pioner Onegi source note