Chart editions / corrections
| * 18172 | Chart: 536 | 
| Sweden. Sea of Åland and Archipelago Sea. S of Singö. St Alören. Askholmen. Submarine cable. | |
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| Insert | submarine power cable between a) - d) | a) | 60-08,53N | 018-44,82E | 
| b) | 60-08,24N | 018-44,07E | ||
| c) | 60-08,26N | 018-44,25E | ||
| d) | 60-08,10N | 018-44,40E | ||
| Amend | submarine cable to overhead power cable | e) | 60-08,20N | 018-44,05E | 
| Bsp Stockholm N 2024/s16, s19 | 
| St Alören submarine cable | 
