Fire in the engine room is spreading to the accommodation. CO2 has been released but flames are visible through the starboard side of the ship. It is 0200 in the North Atlantic, water temperature 6°C. Do you abandon ship? What factors govern your decision?

A. ABANDON SHIP DECISION — command analysis: (1) FACTORS FOR IMMEDIATE ABANDON: fire has breached CO2 total flooding — the fixed system has failed; structural integrity now at risk; uncontrolled fire progression; water temperature 6°C limits survival time to approximately 30-60 minutes — the sooner into the water, the more daylight/SAR time available; (2) FACTORS AGAINST IMMEDIATE ABANDON: night-time, North Atlantic, Force 7-8 conditions — launching lifeboats in these conditions is extremely hazardous and may itself cause casualties; is there a safe refuge (citadel/fire boundary not yet breached); is a SAR helicopter or vessel ETA within 30-60 minutes (survival time in 6°C water); (3) DECISION FRAMEWORK: the master makes this call balancing the risk of remaining (growing fire) against the risk of abandonment (cold water, sea conditions). International guideline (IAMSAR/IMO Resolution): abandon ship when the vessel can no longer be considered a safe platform. In this scenario — uncontrolled fire with CO2 failure and structural risk = abandon; (4) TIMING: ensure EPIRB is activated, MAYDAY is sent, lifeboat/raft is ready BEFORE giving the order — do not order abandon before the means of abandonment are ready; (5) POSTMASTER'S AUTHORITY: no one else can give the order to abandon ship; the master does not wait for the company's permission — ISM Ch 5.2 expressly states the master's overriding authority on safety.

B. Never abandon ship at night in Force 7 conditions. Wait until daylight and improved conditions before giving the abandon ship order regardless of the fire severity.

C. Call the company for authorisation before abandoning ship. The ISM Code requires management approval for the decision to abandon.

D. The Chief Officer makes the abandon ship decision — the master should remain on the bridge to coordinate communications with the coast guard until the last moment.

A. COMMERCIAL PRESSURE vs SAFETY — Master's authority: (1) GM ASSESSMENT: 0.25m GM with containers and a Force 9 forecast must be assessed against the IS Code minimum (0.15m) AND the practical performance of the vessel in Force 9 (7-10m seas). While 0.25m exceeds the IS Code minimum, it provides very limited stability reserve in severe conditions with heavy rolling. A stability improvement should be sought — low ballasting, removal of topweight — before departure; (2) MASTER'S AUTHORITY: SOLAS V Rule 34.3 — the master's judgement on safety shall not be overridden by the owner, charterer, or any other person. ISM Code Ch 5.2 — overriding authority explicitly confirmed; (3) LEGAL POSITION: if the master departs under commercial pressure with an inadequate GM and the vessel capsizes, the master faces criminal negligence charges (MSA 1995 s.58 — operating in an unsafe manner). "I was told to go" is not a defence; (4) COMMUNICATION: document all communications — email/telex the charterer stating the reasons for delay and the decision. This creates an evidence trail; notify the company and DPA of the commercial pressure and safety concern; (5) STCW VIII/2: the master has the right to make decisions for the safety of the vessel and crew without interference; (6) DECISION: do not depart. Improve stability first. Reassess the departure weather window.

B. Depart as demanded. The charterer bears responsibility for any voyage where they demand departure — the master is indemnified by complying with charterer instructions.

C. Compromise: depart with the current stability but reduce speed to 5 knots. This reduces rolling and compensates for the low GM.

D. SOLAS stability criteria apply only to the departure condition. Once at sea, weather conditions may change and reduce the risk — the departure decision is solely commercial.

A. POST-COLLISION COMMAND — Master's obligations: (1) SAFETY OF OWN VESSEL: immediate structural assessment — watertight integrity, stability, engine availability; (2) DUTY TO ASSIST — MSA 1995 s.92 / SOLAS V/33: the master MUST render assistance to persons in danger. Three persons in the North Sea water (approximately 8-10°C) have approximately 30-60 minutes before loss of consciousness. THIS IS THE PRIORITY; (3) IMMEDIATE RESCUE: manoeuvre to recover persons in water — deploy rescue boat if sea state permits; throw lifebuoys with lines; use searchlights to locate persons; (4) VHF Ch 16: broadcast MAYDAY (own vessel, other vessel, persons in water) — request MRCC coordinate additional SAR assistance; (5) OTHER VESSEL: confirm on VHF — what is her condition? Is she in danger of sinking? Do they need further assistance? (6) EVIDENCE PRESERVATION: VDR running — note the time; no one touches the bridge equipment or VDR; take note of all circumstances and your actions; (7) MAIB NOTIFICATION: a collision with persons in the water is a very serious marine casualty — MAIB notification required; (8) FLAG STATE / COMPANY / P&I CLUB: notify as soon as the immediate life safety situation is controlled; (9) LOG: detailed log entries of all communications, actions, and timings.

B. Stand off from the other vessel — approach too close and you risk a second collision. Radio for coast guard assistance and wait for the SAR helicopter.

C. The other vessel is responsible for rescuing her own crew. Your duty is to your own vessel and crew — ensure they are safe first before any other action.

D. Do not transmit a MAYDAY — this admits liability for the collision. Contact your company's legal department before making any communications about the incident.