Transocean Iii Wreck
| Field | Value |
|---|---|
| Wreck Category | non-dangerous wreck |
|
Transocean iii Wreck Location Marine Coordinates (DMM) |
59 31.456 N,1 24.335 E |
| Latitude, Longitude Decimal Degrees |
|
| Wreck Depth | 64 m |
| Water Depth | 109 m |
| Water Level Effect | always under water/submerged |
| Vertical Datum | Approximate Lowest Astronomical Tide |
| Name | TRANSOCEAN III |
| Type | Platform |
| Flag | US |
| Length | 132.6 m |
| Width | 79.2 m |
| Draught | 18.3 |
| Orientation | 135 |
| Conspic Visual | not visually conspicuous |
| Conspic Radar | not radar conspicuous |
| Date Sunk | Jan 1, 1974 |
| Bottom Texture | Sand |
| Original Detection Year | 1974 |
| Last Detection Year | 2013 |
| Original Source | Lloyd's and Marine Underwriter's reports |
| Surveying Details | H3149/69 3.1.74 H3149/69 3.1.74 SANK IN 593129.5N, 012427.5E. (LL 215). 15.1.74 15.1.74 LT HO VESSEL STANDING BY TO LAY BUOY IF NECESSARY. (NLB, TLX 10.1.74). 20.5.74 20.5.74 LEAST DEPTH 61MTRS. (MR MARS, MOBILOIL & HAMBURG). - NM 99(T)/74. H3149/69 24.6.74 H3149/69 24.6.74 LIES UPSIDE DOWN IN 356FT. LENGTH OF LONGEST LEG IS 146FT. LEAST DEPTH 210FT (64 MTRS) IN 593129.4N, 012426.1E [EUR]. (MR WILKIE, MOBILOIL). INS AS WK 64MTRS. - NM 1303/74. H1271/74 16.9.75 H1271/74 16.9.75 REPORTS RECEIVED INDICATE PLATFORM MAY BE BREAKING UP AND LARGE BUOYANT PIPES DRIFTING AWAY. (DAFS, LM DTD 3.9.75). H3149/69 22.12.78 H3149/69 22.12.78 BUOY MARKING WK, AND WELLHEAD NEARBY, HAS BEEN REMOVED. (NC 1). H1271/83 23.3.83 H1271/83 23.3.83 NDW SHOWN IN 593130N, 012450E [EUR] ON NORWEGIAN 307 [1982 EDN]. NCA. H4106/87 8.10.87 H4106/87 8.10.87 SHOWN IN 593129.8N, 012428.0E [EUR] ON CONTINGENCY LOCATIONS PLAN FOR MOBIL 9/13A CALM BUOY. (MOBIL N SEA LTD, MNA 10/42/072, 1.6.87). NCA. H4106/87 15.2.89 H4106/87 15.2.89 COPIES OF PLANS GIVING SOME DIMENSIONS OF PLATFORM. WK HAS BEEN FOULED BY FISHING NETS. ANCHORS AND CABLES ARE STILL ATTACHED TO WK. POSN GIVEN AS 593126.8N, 012423.1E [EUR]. (MOBIL N SEA LTD, 9.1.89). HH254/444/01 7.11.91 HH254/444/01 7.11.91 POSN GIVEN AS 593129.5N, 012427.9E [EUR]. (BERYL AREA LAYOUT CHART, AUGUST 1991). NCA. [WGD] POSN: 5931.456N, 0124.335E. 30.9.13 SEP 2013/000212091 30.9.13 EXAM'D 2013 IN 5931.488N, 0124.406E [WGD]. LEAST M/B DEPTH 63MTRS. INVERTED WITH ONE LEG STILL ATTACHED WHICH GAVE THE LEAST DEPTH. (M DUNE, APACHE NORTH SEA, EMAIL DTD 25.9.13). AMEND WK 63MTRS IN REVISED POSN. |
| Last Amended Date | Aug 12, 2010 |
Circumstances of loss
8.1.74 SEMI-SUBMERSIBLE DRILLING PLATFORM. WAS MOORED ON LOCATION 9/13-4, WHEN LEG NO.4 BROKE AWAY. THE UNIT CAPSIZED, FLOATED FOR A PERIOD, BUT EVENTUALLY SANK UPSIDE DOWN. CREW OF 38 EVACUATED. (LL, 8.1.74).
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