Exercises

Hazardous operations

Brazil-south Coast · HYDROLANT 778/12

issued: 2012-04-08 08:20Z
status: cancelled 2012-04-17 22:00Z (archive)
self-cancels: 2012-04-17 22:00Z
cancels: HYDROLANT 763/12 HYDROLANT 772/12 HYDROLANT 776/12
authority: NAVAREA V S 460/12 080058Z APR 12 - WZ 489/12 072116Z APR 12 - WZ 490/12 080249Z APR 12 - JRCC STAVANGER 080217Z APR 12.
source: nga_json · first seen 2026-08-17 13:38Z

Original warning text

BRAZIL-SOUTH COAST.
HAZARDOUS OPERATIONS.
1. HAZARDOUS OPERATIONS 131500Z TO 172100Z APR
   IN AREA BETWEEN
   23-12S 23-42S AND 043-25W 044-05W.
2. CANCEL HYDROLANT 763/12(37), OPERATIONS COMPLETED.
3. CANCEL HYDROLANT 772/12(35), SERVICE RESTORED.
4. CANCEL HYDROLANT 776/12(51), ASSISTANCE RECEIVED.
5. CANCEL THIS MSG 172200Z APR.

Timeline

Underwater operations in progress until further notice by cableship leon thevenin with submersible vicinity…cancels · 2012-04-06
Mrcc aberdeen mf r/t service at greg ness 57-08N 002-03W off aircancels · 2012-04-07
M/V nordic apollo reports master requiring medical assistance in 05-24N 010-29W at 072024Z aprcancels · 2012-04-07
Underwater operations in progress until further notice by cableship leon thevenin with submersible vicinity…replaced · 2012-04-06
Mrcc aberdeen mf r/t service at greg ness 57-08N 002-03W off airreplaced · 2012-04-07
M/V nordic apollo reports master requiring medical assistance in 05-24N 010-29W at 072024Z aprreplaced · 2012-04-07

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