AMSA Coxswain Grade 2 NC (AC2NC)

Correct: This approach aligns with situational leadership and fatigue management principles by recognizing the physiological limits of the crew. By pausing to re-evaluate priorities and ensuring restorative rest, the leader addresses the root causes of stress-induced communication breakdowns. This strategy supports the Safety Management System (SMS) requirements for maintaining a safe working environment under high-pressure conditions.

Incorrect: Focusing only on increased performance monitoring and corrective feedback often exacerbates stress by creating a climate of fear and reducing psychological safety. The strategy of mandatory group venting sessions during active operations is poorly timed and can interfere with necessary rest cycles required for cognitive recovery. Choosing to delegate all authority to junior officers during a crisis represents a failure of accountability and can lead to inconsistent decision-making when senior oversight is most critical.

Takeaway: Effective maritime stress management requires balancing operational demands with the crew’s physiological needs through prioritized task management and restorative rest periods.

Correct: Cultivating psychological safety and applying cultural empathy allows a leader to recognize different communication styles and power distance orientations. This approach encourages crew members to voice concerns that might otherwise be suppressed due to cultural norms regarding authority, which is essential for maintaining safety standards on a US-flagged vessel.

Incorrect: The strategy of enforcing a rigid top-down command structure can stifle essential feedback and prevent the identification of hazards by subordinates who may be culturally conditioned to defer to authority. Focusing only on written checklists fails to address the underlying social dynamics and the necessity of verbal confirmation in high-stakes environments. Opting to organize the crew based on foreign traditional hierarchies can create confusion and conflict with the established safety management system of the vessel.

Takeaway: Leaders must use cultural empathy and psychological safety to overcome communication barriers in diverse maritime teams to ensure operational safety.

Correct: Active listening requires the listener to fully concentrate, understand, respond, and then remember what is being said. By paraphrasing the junior officer’s concerns and asking clarifying questions, the Chief Mate confirms that the message has been accurately received and encourages the speaker to provide deeper insights. This technique is a cornerstone of effective communication in United States maritime leadership, as it builds trust and ensures that safety-critical information is not misinterpreted.

Incorrect: The strategy of preparing a rebuttal while the other person is speaking prevents the leader from truly processing the speaker’s message and is often referred to as ‘rebuttal listening.’ Choosing to interrupt with immediate solutions, even if well-intentioned, can stifle the speaker’s ability to communicate the full scope of the problem and may lead to addressing symptoms rather than root causes. Focusing only on verbatim note-taking captures the data but misses the non-verbal cues and emotional context that are essential for empathetic and effective leadership under stress.

Takeaway: Active listening involves paraphrasing and clarifying to ensure mutual understanding and validate the speaker’s concerns in safety-critical environments.

Correct: In the Hersey-Blanchard model, the salvage team represents a moderate readiness level because they have high general competence but low task-specific knowledge regarding the vessel’s layout. The Selling (S2) style is most effective here because it allows the leader to provide the necessary technical direction (high task) while maintaining a high relationship behavior to explain the ‘why’ and integrate the salvors’ professional expertise into the plan.

Incorrect: The strategy of providing one-way instructions without feedback is inappropriate because it fails to leverage the salvage team’s high level of general professional experience. Focusing only on shared decision-making and support is ineffective in this scenario because the team lacks the specific technical vessel knowledge required to make safe decisions independently. Choosing to turn over all responsibility with minimal oversight is dangerous during a maritime incident when the subordinates do not possess the critical vessel-specific information needed to prevent further damage.

Takeaway: Leaders must adapt their style to the followers’ task-specific readiness, balancing technical guidance with relationship support during complex maritime incidents.

Correct: Closed-loop communication is a critical leadership tool in emergency management. It involves the sender stating a message, the receiver repeating it back, and the sender confirming the repetition is correct. This process ensures that in high-noise or high-stress environments, such as a fire on a vessel, there is no ambiguity regarding the Master’s orders or the status of the response. This technique is a cornerstone of Bridge Resource Management (BRM) and is emphasized by the U.S. Coast Guard for maintaining situational awareness and safety.

Incorrect: The strategy of providing lengthy explanations is counterproductive during an emergency because it can lead to information overload and delay critical actions when time is of the essence. Relying on informal shorthand or non-standard terminology increases the risk of misinterpretation, particularly if the stress of the situation causes a breakdown in normal cognitive processing. Choosing to restrict communication only to the bridge team is a failure of leadership that prevents the necessary flow of information between departments, which is essential for a coordinated response to a multi-departmental emergency.

Takeaway: Closed-loop communication is essential in maritime emergencies to verify understanding and ensure the precise execution of critical commands.

Correct: Facilitating a collaborative, non-punitive environment aligns with the principles of a Just Culture, which is essential for identifying the complex interaction between human factors and systemic vulnerabilities. By focusing on ‘how’ and ‘why’ the system failed rather than ‘who’ failed, leaders encourage the honest reporting necessary to improve safety management systems and operational resilience.

Incorrect: The strategy of identifying a single negligent party often leads to a culture of fear where crew members hide mistakes, preventing the identification of underlying process flaws. Focusing only on technical data and automated logs neglects the critical role of human decision-making and communication breakdowns in maritime incidents. Choosing to simply reinforce existing procedures through top-down mandates fails to address why those procedures were bypassed or proved insufficient in the first place.

Takeaway: A non-punitive, systemic approach to incident analysis encourages honest reporting and identifies the root causes necessary for lasting safety improvements.

Correct: Developing a formal talent pipeline is a cornerstone of effective succession planning because it allows the organization to systematically identify leadership potential and provide the necessary mentorship and coaching to bridge the gap between technical proficiency and managerial excellence.

Incorrect: The strategy of promoting based solely on sea time fails to account for the specific leadership and managerial competencies required by modern maritime standards and may result in technically skilled but managerially unprepared officers. Relying on a reactive hiring strategy creates significant risks to institutional knowledge and can disrupt the established safety culture of the vessel during the transition period. Choosing to ignore formal leadership training in favor of technical certification alone overlooks the critical importance of human factors, emotional intelligence, and resource management in maintaining safe operations.

Takeaway: Proactive succession planning through targeted development and mentorship is essential for maintaining safety culture and operational continuity during leadership transitions.

Correct: In high-pressure maritime emergencies, the Master must provide authoritative direction to prevent confusion and ensure immediate safety. This directive approach is essential for stabilizing the vessel and is a core component of effective Bridge Resource Management (BRM) as recognized by the U.S. Coast Guard. It ensures that critical tasks are assigned and executed without the delays inherent in collaborative styles.

Incorrect: Relying on a participative style during an acute crisis often results in dangerous delays that can lead to groundings or collisions. The strategy of delegating all command decisions to technical staff ignores the Master’s primary responsibility for the safety of the entire vessel and navigation. Opting for a transformational focus is inappropriate in the moment because it prioritizes long-term growth over the immediate necessity of survival and hazard mitigation.

Takeaway: Crisis situations require a shift to directive leadership to ensure clear communication and rapid response when time is a critical factor.

Correct: Transformational leadership is highly effective for cultural change because it inspires crew members to look beyond their immediate tasks toward a shared vision of environmental excellence. By connecting sustainability to professional pride and personal values, the Master encourages proactive problem-solving. This approach ensures that the crew is not just following USCG and EPA regulations to avoid punishment, but is actively seeking ways to minimize the vessel’s environmental footprint, which leads to more robust and sustainable compliance outcomes.

Incorrect: The strategy of relying on transactional rewards can inadvertently encourage the suppression of reporting or the ‘masking’ of minor incidents to protect bonuses. Focusing only on increased bureaucratic sign-offs often leads to ‘alarm fatigue’ and administrative burdens that can distract from actual operational safety and environmental monitoring. Choosing to delegate all environmental responsibility without active leadership or a unified vision fails to provide the necessary structure and accountability required by OPA 90 and other federal maritime regulations.

Takeaway: Transformational leadership drives environmental sustainability by fostering a values-based culture that exceeds basic regulatory compliance through crew engagement and innovation.

Correct: Under the Act to Prevent Pollution from Ships (APPS) and United States Coast Guard regulations, maintaining an accurate Oil Record Book is a critical legal requirement. Ethical leadership requires transparency and accountability; correcting the error through official channels with a supplemental entry demonstrates integrity and prevents the much more serious charge of knowingly and willfully maintaining false records, which can lead to criminal prosecution in the United States.

Incorrect: The strategy of backdating entries constitutes a false official statement and obstruction of justice, which are severe federal crimes often prosecuted more aggressively than the underlying discharge violation. Choosing to delay reporting until dry-docking fails to meet the immediate compliance obligations for Port State Control and risks vessel detention if the discrepancy is discovered during inspection. Opting to delegate the issue entirely to a junior officer ignores the Master’s ultimate responsibility for the vessel’s compliance and fails to address the systemic need for training and oversight within the safety management system.

Takeaway: Ethical leadership in environmental compliance requires immediate transparency and formal correction of record-keeping errors to avoid criminal liability for falsification.

Correct: In the United States, mediation is a collaborative process where a neutral third party assists the disputants in reaching their own settlement. Conversely, arbitration is a more formal process where the neutral party, the arbitrator, acts as a private judge and makes a decision that is typically final and legally binding on the parties involved.

Incorrect: The strategy of defining the mediator as a legal representative for the owner is incorrect because mediators must remain neutral and do not represent either side. Simply suggesting that mediators issue final rulings while arbitrators provide non-binding suggestions reverses the actual roles and authorities of these two ADR methods. Focusing on technical versus insurance-related limitations for these roles is a misconception, as both processes can address a wide range of interpersonal, operational, and legal issues.

Takeaway: Mediation empowers parties to create their own solution, whereas arbitration involves a third party making a final decision for them.

Correct: Under the Path-Goal Theory, when a subordinate is performing a stressful or frustrating task, supportive leadership is most effective for maintaining motivation and satisfaction. By clarifying the path and prioritizing tasks, the leader removes obstacles and reduces the subordinate’s stress, which is critical for ensuring compliance with safety standards and USCG regulations during high-pressure operations.

Incorrect: Increasing the frequency of formal written reports during a period of high stress can lead to further cognitive overload and fails to address the underlying cause of the performance dip. The strategy of allowing the officer to struggle independently in a high-stakes environment risks safety violations and ignores the leader’s responsibility to provide support. Focusing only on setting higher performance targets when an individual is already overwhelmed typically decreases motivation and increases the likelihood of critical errors.

Takeaway: Effective monitoring requires adjusting leadership styles to remove performance obstacles and provide the specific support needed for the current environment.

Correct: Integrating continuous feedback with coaching ensures that mariners receive timely guidance to improve both their technical proficiency and their leadership behaviors. This holistic approach aligns with US maritime safety standards by fostering a culture of professional growth and proactive risk management. It allows for immediate course correction and supports the long-term development of the crew’s managerial capabilities.

Incorrect: The strategy of waiting until the end of a hitch to provide feedback prevents the timely correction of unsafe behaviors or technical errors during the voyage. Relying on forced ranking systems often undermines the collaborative environment essential for safe vessel operations and can lead to decreased morale and communication breakdowns. Focusing only on checklist compliance fails to evaluate the critical decision-making and leadership skills necessary for effective management in complex maritime environments.

Takeaway: Effective performance evaluation requires continuous feedback and a balanced focus on both technical tasks and behavioral leadership qualities.

Correct: Social skills within the framework of Emotional Intelligence involve the ability to manage relationships, build rapport, and influence others toward a common goal. By facilitating a collaborative meeting, the leader uses persuasion and conflict management to align diverse interests with the vessel’s overall safety and operational objectives, fostering a climate of cooperation rather than mere compliance.

Incorrect: Relying solely on formal authority or standing orders ignores the interpersonal dynamics and fails to build the long-term rapport necessary for effective teamwork. The strategy of delegating the conflict to subordinates avoids the leadership responsibility of active relationship management and may lead to further escalation between departments. Focusing only on technical logic neglects the emotional and social components of the dispute, which are often the root cause of friction in high-pressure maritime environments.

Takeaway: Social skills enable leaders to manage interpersonal dynamics and influence teams toward shared goals through effective communication and conflict resolution.

Correct: According to the Hersey-Blanchard Situational Leadership Model, effective delegation is based on the follower’s readiness level, which is defined by both ability and willingness. In a high-stakes scenario involving critical safety equipment and USCG regulatory compliance, the leader must ensure the person has the specific technical skills (competence) and the confidence or commitment (willingness) to perform the task without constant supervision.

Incorrect: Relying on seniority or general experience on other vessels is insufficient because it does not guarantee specific competence for the current vessel’s systems or the individual’s current motivation level. Focusing only on speed or workload management risks compromising the quality and safety of the inspection, which could lead to a USCG deficiency. Choosing a subordinate based on personal rapport or a lack of questioning ignores the necessity for technical proficiency and the critical thinking required to identify and report potential system failures.

Takeaway: Effective delegation requires matching the task to a subordinate’s specific technical competence and their psychological readiness to accept responsibility.

Correct: The Master is legally responsible for the vessel’s compliance with U.S. laws, including 33 CFR and MARPOL requirements. Ethical leadership dictates that the Master must prioritize these legal obligations and environmental safety over commercial interests, even when facing significant pressure from shore-side management. Delaying departure or seeking official USCG guidance ensures the vessel does not operate in violation of federal pollution prevention standards.

Incorrect: The strategy of sailing with the intent to hold waste does not rectify the legal requirement to have functioning pollution prevention equipment before getting underway. Choosing to delegate the decision to the Chief Engineer is an inappropriate application of leadership as the Master holds the ultimate legal accountability for regulatory compliance. Focusing only on crew incentives to repair the unit while transiting ignores the fact that departing with known defective mandatory equipment is a violation of the vessel’s safety management system and federal law.

Takeaway: Ethical maritime leadership requires prioritizing federal regulatory compliance and environmental protection over commercial pressures and operational schedules.

Correct: According to Fiedler’s Contingency Model, task-oriented leadership is most effective in highly favorable situations. These situations are characterized by good leader-member relations, high task structure, and strong position power. In this maritime scenario, the clarity of the pilotage plan and the strong rapport allow a task-focused approach to maximize safety and efficiency during the transit.

Incorrect: Relying on relationship-oriented leadership is generally more productive in situations of moderate favorability where the leader needs to build cohesion to overcome task ambiguity. The strategy of using participative leadership may be redundant when the task is already clear and relations are good. Opting for delegative leadership could compromise safety in restricted waters where active command is required by federal regulations and USCG navigation rules.

Takeaway: Task-oriented leadership is most effective in situations that are either extremely favorable or extremely unfavorable according to Fiedler.

Correct: Transformational leadership is highly effective in accident prevention because it shifts the crew’s motivation from mere compliance to a genuine commitment to safety. By fostering a culture where safety is a core value rather than a set of rules, the Master empowers the crew to identify and mitigate risks proactively. This approach aligns with US Coast Guard expectations for a functional Safety Management System where leadership demonstrates a top-down commitment to safety culture, ensuring that time pressures do not compromise operational integrity.

Incorrect: The strategy of relying on a strict transactional model with punitive measures often backfires by encouraging the crew to hide near-misses or procedural shortcuts to avoid punishment. Simply delegating all behavioral monitoring to a junior officer is insufficient because leadership commitment must be visible and consistent from the top to be effective. Opting to wait for an external audit is a reactive approach that ignores the immediate need for internal intervention to correct dangerous behavioral trends before they escalate into a serious casualty.

Takeaway: Effective accident prevention relies on transformational leadership that builds a proactive safety culture beyond basic regulatory compliance and punitive enforcement.

Correct: Collaborating is an assertive and cooperative style where parties work together to find a win-win solution that satisfies all concerns. This approach is best when the objectives of both parties are too important to be compromised and requires high levels of trust and time to explore the root causes of the conflict to reach an integrative solution.

Incorrect: The strategy of seeking a middle ground where each party gives up a portion of their requirements describes compromising, which often leads to a solution that only partially satisfies both sides. Opting for a style where one party yields entirely to the other’s preferences represents accommodating, which fails to address the yielding party’s legitimate operational needs. Relying on a power-oriented mode where one person’s position prevails at the expense of the other is known as competing, which can stifle communication and breed resentment in a maritime team environment.

Takeaway: Collaborating seeks an integrative solution that fully satisfies the concerns of all parties when the issues are too important for compromise.

Correct: This approach utilizes empathy and social skills, core components of Emotional Intelligence, to address the root cause of the officer’s behavior. By prioritizing the individual’s needs and involving them in the solution, the leader demonstrates Servant Leadership, which fosters trust and maintains long-term safety and welfare on board. This aligns with U.S. maritime leadership standards that emphasize the human element in safety management.

Incorrect: Focusing only on technical compliance with rest hour logs fails to account for the psychological impact of isolation and restricted shore leave. Simply increasing the workload through additional drills can lead to burnout and further degrade the mental health of the crew. Choosing to reassign tasks without addressing the underlying stressor may lead to resentment and does not help the officer recover their professional focus. Relying solely on a top-down enforcement of schedules ignores the leader’s responsibility to support the emotional well-being of the team.

Takeaway: Leaders must use empathy and active listening to address crew mental health and welfare beyond mere regulatory compliance for rest hours.

Correct: Using directive leadership and closed-loop communication is essential in a crisis to reduce cognitive load on the crew. By breaking down complex situations into specific, manageable tasks, the Master helps the team overcome stress-induced paralysis. This approach ensures that critical actions are performed and confirmed through verbal feedback.

Correct: Under U.S. maritime safety standards and STCW crisis management principles, the Master’s primary responsibility is the safety of life. Verifying that all personnel are accounted for is a non-negotiable prerequisite before releasing a life-threatening extinguishing agent like CO2. Additionally, confirming the isolation of fuel sources is a fundamental firefighting strategy to ensure the fire does not re-ignite or continue to feed on pressurized oil after the agent is discharged.

Incorrect: The strategy of releasing the agent immediately without confirmed accountability risks the lives of any crew members who may be trapped or incapacitated within the space. Choosing to send a response team back into a high-risk environment for manual verification introduces unnecessary danger to personnel when the decision should be based on existing situational awareness. Relying solely on shore-based approval for tactical shipboard decisions ignores the Master’s ultimate authority and the need for timely action during a rapidly evolving shipboard emergency.

Takeaway: Personnel accountability and fuel isolation are the critical prerequisites for the safe and effective deployment of fixed fire-extinguishing systems.

Correct: Under the Safety Management System (SMS) and US maritime standards, the shore-based support team is responsible for alleviating the Master’s burden by handling external logistics, regulatory reporting to the US Coast Guard, and managing communications with stakeholders and families.

Incorrect: Attempting to take tactical control from a remote location ignores the Master’s overriding authority and the necessity of on-scene situational awareness. The strategy of delaying distress signals for legal review is a dangerous violation of safety protocols and federal reporting requirements. Opting to relieve the Master of decision-making authority contradicts the fundamental principles of maritime command where the Master retains ultimate responsibility for the ship’s safety.

Takeaway: Shore-based support teams enhance crisis response by managing external logistics and communications, leaving tactical command to the Master on-scene.

Correct: In accordance with maritime safety regulations and crisis management principles, the Master holds the ultimate responsibility and overriding authority to make decisions that ensure the safety of life and the vessel. The Crisis Management Plan (CMP) serves as a guide that establishes clear triggers for when the shore-side organization must be notified and mobilized to provide logistical and technical support without stripping the Master of command.

Incorrect: The strategy of shifting command authority to shore-side personnel is incorrect because the Master remains legally responsible for the vessel’s immediate safety regardless of shore-side involvement. Opting to wait for formal approval from a Designated Person Ashore before taking emergency action could result in catastrophic delays during a time-critical event. Focusing only on technical expertise by delegating total tactical control to an engineer ignores the Master’s role in coordinating the overall vessel response and maintaining situational awareness across all departments.

Takeaway: The Master retains overriding authority during emergencies, using the Crisis Management Plan to trigger essential shore-side support and resources.

Correct: Perceptual narrowing, or tunnel vision, is a common psychological response to high stress where an individual’s field of attention decreases. Implementing closed-loop communication is a recognized technique in US maritime safety standards to ensure that messages are received and understood, which helps break the cycle of narrowing by forcing cognitive engagement and verifying the broader operational picture.

Incorrect: Relying on increased volume or aggressive verbal commands often increases the physiological stress response in subordinates, which can actually worsen cognitive narrowing and lead to further errors. The strategy of delegating all tactical authority to a single rating undermines the command structure required by the vessel’s emergency response plan and may lead to a loss of overall situational awareness by the Master. Opting to restrict information flow generally increases uncertainty and anxiety among the crew, which is more likely to trigger panic and disorganized behavior rather than preventing it.

Takeaway: Structured communication and active leadership are essential to counter stress-induced cognitive biases and maintain situational awareness during maritime emergencies.

Correct: Facilitating a formal debriefing is a critical component of the recovery phase because it allows crew members to process the event collectively. This approach helps leadership identify those who may need professional psychological support. This practice is consistent with United States Coast Guard emphasis on the Human Element and STCW standards for managing human behavior in crisis situations.

Incorrect: Increasing the frequency of drills immediately after a crisis can inadvertently increase stress levels and physical exhaustion rather than providing emotional support. The strategy of implementing a policy of silence is counterproductive as it prevents the healthy processing of trauma. Choosing to grant rest hours without providing a forum for communication ignores the psychological need for closure and the identification of long-term stress indicators.

Takeaway: Post-crisis psychological support must prioritize structured communication and the early identification of trauma symptoms to ensure long-term crew resilience and safety.

Correct: Effective delegation in a maritime crisis involves assigning specific roles to competent crew members, which prevents the Master from becoming overwhelmed by technical details. By retaining the role of coordinator, the Master can monitor the progress of all teams, evaluate changing risks, and ensure the vessel’s safety according to the Crisis Management Plan and STCW standards. This ‘helicopter view’ is essential for making informed decisions under pressure.

Incorrect: The strategy of the Master personally engaging in physical repairs leads to a loss of the big picture and leaves the vessel without a central coordinator during a life-threatening event. Choosing to assign complex tasks to inexperienced personnel during an emergency increases the likelihood of errors and endangers the entire crew by placing them in roles beyond their demonstrated competence. Relying on a micromanagement style where the leader handles every minor detail causes cognitive overload and prevents the timely processing of critical safety information from external and internal sources.

Takeaway: Effective delegation requires matching tasks to crew competence while the leader maintains overall situational awareness and strategic command.

Correct: Integrating scenario-based drills with simulated stressors is a core principle of crisis management and human behavior training. This approach helps crew members develop the cognitive skills necessary to manage high-stress environments, maintain situational awareness, and avoid the ‘tunnel vision’ that often occurs during maritime emergencies. By practicing in a realistic environment, the crew learns to prioritize information and communicate effectively under pressure, which is essential for the successful implementation of shipboard emergency plans.

Incorrect: The strategy of expanding written manuals into exhaustive lists often leads to information overload, making it nearly impossible for crew members to find relevant guidance during a fast-moving crisis. Relying solely on a centralized, top-down decision-making model can be dangerous as it ignores the specialized situational awareness of other officers and can create a single point of failure. Focusing only on mechanical reliability and equipment inspections fails to address the human element, which is the primary factor in most maritime incidents and the core focus of crisis management training.

Takeaway: Effective emergency plan implementation requires training that addresses human factors like situational awareness and information management under high-stress conditions.

Correct: Establishing a non-punitive environment and utilizing EAP resources aligns with modern crisis management frameworks that prioritize human behavior and psychological recovery. This approach facilitates the identification of trauma symptoms and promotes a culture of safety and support, which is essential for maintaining long-term operational readiness and complying with safety management system goals regarding crew welfare.

Incorrect: The strategy of restricting communication until a formal investigation ends can increase anxiety and allow rumors to flourish, which significantly hinders the psychological healing process. Choosing to reassign traumatized individuals to high-intensity tasks ignores the fundamental need for psychological processing and may lead to further safety incidents due to cognitive overload or fatigue. Focusing only on technical violations and blame before addressing welfare undermines trust and fails to account for the human factors that influence crisis response and recovery.

Takeaway: Post-crisis recovery requires balancing technical investigations with proactive psychological support and non-punitive communication to ensure crew well-being and safety.

Correct: Cognitive tunneling occurs when high stress and fatigue cause a person to focus intensely on one specific task or instrument, such as the steering alarm, while losing situational awareness of other critical environmental factors like radio traffic. This is a well-documented human factor in maritime accidents under the STCW framework and USCG safety standards.

Incorrect: Attributing the OOW’s lack of response to a deliberate reduction in effort because others are present describes a social phenomenon that does not fit the intense focus on the technical failure. The strategy of using mental shortcuts based on recent memories describes a different cognitive process rather than the physical narrowing of attention. Focusing on the drive for team consensus describes a collective failure in group dynamics which is not the primary issue when an individual becomes fixated on a single mechanical indicator.

Takeaway: High-stress maritime emergencies often trigger cognitive tunneling, which severely limits a mariner’s ability to process multiple streams of critical information.