Renseignements généraux

Nº de série

S/O

Nº de partie

1

Nombre total de parties

21

Ou

S/O

Brevets

S/O

Description générale

BRASS RODS & BUSHINGS

Dimensions

Remarque : Cette information reflète la taille générale pour l’entreposage et ne représente pas nécessairement les véritables dimensions de l’objet.

Longueur

11,0 cm

Largeur

2,0 cm

Hauteur

S/O

Épaisseur

S/O

Poids

S/O

Diamètre

S/O

Volume

S/O

Lexique

Groupe

Transports maritimes

Catégorie

Divers

Sous-catégorie

S/O

Fabricant

Ou

Inconnu

Pays

Inconnu

État/province

Inconnu

Ville

Inconnu

Contexte

Pays

Canada

État/province

Terre-Neuve-et-Labrador

Période

BETWEEN 1976 & 1982

Canada

IT WAS THE MISTAKEN PERCEPTION OF THE BALLEST CONTROL OPERATORS THAT MANUALLY INSERTING A ROD INTO A SOLENOID VALVE LOCATED BENEATH THE MIMIC PANEL WOULD CLOSE THE VALVE. IN FACT, THE REVERSE WAS TRUE. 18 RODS WERE FOUND INSERTED IN VALVES, FOLLOWING THE LOSS. THESE BRASS RODS WERE FABRICATED SPECIFICALLY TO TEST THE PHEUMATIC SYSTEM BEFORE THE ELECTRIC CONTROL PANEL WAS INSTALLED IN THE BALLEST CONTROL ROOM ABOARD THE OCEAN RANGER. THE OCEAN RANGER'S CREW MISUNDERSTOOD THE USE & EFFECT OF THESE RODS - THEIR INSERTION DURING THE STORM OF FEB. 15, 1982 ACHIEVED AN EFFECT OPPOSITE TO THAT INTENDED & CONTRIBUTED DIRECTLY TO THE DISASTER. THE MIMIC CONTROL PANEL IN THE BALLAST CONTROL ROOM PROVIDED VERY LIMITED INFORMATION REGARDING THE VALVES, AND NONE REGARDING THE MECHANICAL CONDITION OF THE EQUIPMENT. IF POWER WAS OFF AT THE MIMIC PANEL, ALL REMOTELY OPERATED VALVES CLOSED, BUT BALLAST VALVES & PUMPS COULD BE OPERATED MANUALLY FROM THE PUMP ROOM. HOWEVER, NO SYSTEM EXISTED SAVE THE PUBLIC ADDRESS SYSTEM, TO CONTROL THE MANUAL BALLASTING OF THE RIG. THIS CRUCIAL FLAW WAS AT THE HEART OF THE OCEAN RANGER DISASTER.

Fonction

RODS WERE USED TO MANUALLY CONTROL THE SOLENOID VALVES ON THE BALLEST CONTROL PANEL. THIS CONSOLE IS EQUIPPED WITH CONTROLS FOR PUMPS & VALVES USED TO TRANSFER BALLEST & LIQUID CARGO TO & FROM THE TANKS IN THE PONTOONS. (REPORT, P.389)

Technique

WHEN IT WAS LAUNCHED IN 1976, THE OCEAN RANGER WAS THE LARGEST, SELF-PROPELLED SEMI-SUBMERSIBLE OFFSHORE DRILLING UNIT IN THE WORLD (REPORT, p.vii)

Notes sur la région

Inconnu

Détails

Marques

NONE

Manque

S/O

Fini

Inconnu

Décoration

S/O