This is the information page about the shipwreck Monarch service, the water chart below shows the wreck in its immediate vicinity. The position of this wreck is 58 11.73 N,0 6.353 E (58.470817, 0.022850)

The texts accompanying this shipwreck are in English 🇬🇧, as they are prepared by the UK Hydrographic Office (UKHO) based on data from UKHO and the hydrographic services of the Netherlands, Belgium and Germany, among others. They include the known details of the wreck and the comments of the cartographers who have checked the position and condition of the wreck over time.

Name: MONARCH SERVICE

Length 59.7 meter, width: 16.5 meter, draught: 7.3, tonnage 692 ton

Cause: capsized & sank while transferring equipment from drilling platform borgny dolphin, to which she was secured alongside. owned at time of loss by zapata offshore services, london.

Year of registration: 1977

Water depth above wreck: 138 meter, Height above seabed: 150 cm

Known since: 1977, last detected: 1989

Details measurements/cartography: 2.3.77 POSN 581150N, 000631E. STANDS 13MTRS HIGH IN GEN DEPTH 138MTRS. (MR MASON, SALVAGE ASSOCIATION, TELECON 2.3.77). H3149/69 22.3.77 H3149/69 22.3.77 MARKED BY OR BUOY WITH 2 FL LIGHTS IN 581150N, 000631E. (MR WALKER, TELECON). INS AS WK 125MTRS WITH BUOY CLOSE EAST.

- NM 851/77. 15.4.80 15.4.80 BUOY WAS LAID, BUT HAS NOT BEEN CHECKED SINCE. DOUBTFUL IF IT IS STILL ON STATION. WHEN WK LAST 'SURVEYED', WAS SINKING INTO SEABED. THOUGHT UNLIKELY NOW TO CONSTITUTE AN OBSTN. (TELECON NC1/ZAPATA OFFSHORE SERVICES). NCA YET. H3149/69 5.6.81 H3149/69 5.6.81 LOCATED IN 581145N, 000626E [EUR] USING PULSE/8. LEAST E/S DEPTH 115 IN GEN DEPTH 136MTRS. SMALL SCOUR. DCS3 HT 20MTRS. LENGTH 34MTRS, BEAM 20MTRS. LYING 150/330 DEGS. EXTENSIVE DEBRIS LYING ON BRG 150DEGS FROM WK, COVERING 0.27 SQ KM. (BP, TLX 03/06/81). BUOY NOT SEEN. (TELECON WITH MR LIVINGSTONE, BP - 2.6.81). AMEND TO WK WK 115MTRS IN REVISED POSN. DELETE BUOY. BR STD. 19.9.85 19.9.85 LOCATED IN 581150N, 000626E USING SYLEDIS. DCS3 HT 13MTRS, LENGTH 60 MTRS. (P NORTON, TELECON). NCA. 16.3.89 16.3.89 WK LOCATED IN 581146.183N, 000627.228E [EUR] USING SYLEDIS. E/S TRACE INDICATES A HT OF 13.0 MTRS ABOVE SEABED. DCS3 SEAFLOOR MAPPING SYSTEMS SHOWS MASS OF PIPE DEBRIS 100 X 50 MTRS CLOSE SE. GEN DEPTH 138 MTRS. (WIMPOL, JUNE-SEP 1985, M 1233). AMEND TO WK 125MTRS IN REVISED POSN. NC 244.
Comment researcher: UK Hydrographic Office

Position: 58 11.73 N,0 6.353 E

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