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No One in Charge: How a Training Exercise on the River Cleddau Became a Fatal Collision

🕑 5 min read words Safety • Incident

Vessel: N207 (Zodiac, 4.7m) and Rescue 1 (Delta RIB, 6.4m) — Mid and West Wales Fire and Rescue Service rigid inflatable boats
Date & location: 17 September 2019, River Cleddau, Milford Haven, Wales
Outcome: The two RIBs collided during a training and familiarisation exercise. One firefighter killed, one sustained minor injuries
Human factors: Communication · Situational Awareness · Challenge Culture
Source: MAIB Report 17/2020

5 decision points2 outcome paths — controlled exercise / uncontrolled collision~6 min read + Knowledge Checker

No One in Charge

On 17 September 2019, two Mid and West Wales Fire and Rescue Service RIBs — N207, a 4.7m Zodiac, and Rescue 1, a 6.4m Delta RIB — were carrying out training and familiarisation manoeuvres on the River Cleddau. There was no overall person in charge of the exercise. The manoeuvres hadn't been briefed to both crews beforehand. Each boat was, in effect, operating to its own plan.

The two RIBs were manoeuvring at speed in close proximity in a confined stretch of river. Neither crew knew what the other intended to do next. They collided. One firefighter was killed; another sustained minor injuries.

A Predictable Consequence, Not a Freak Accident

The investigation's findings were direct: this wasn't an unlucky coincidence, it was the foreseeable result of two independently-operating boats manoeuvring at speed in a confined space with no shared situational picture. Multi-boat training exercises without a designated exercise controller are predictably dangerous — each crew follows its own plan, unaware the other crew has a different one, until the two plans intersect.

The investigation also identified gaps behind the immediate cause: Mid and West Wales FRS's crew qualification requirements for boat helmsmen were inadequate for the risk level of the operations being conducted, and the service's own auditing of boat operations didn't adequately cover these activities. More broadly, there was no nationwide standard for boat operations across UK fire and rescue services at all — meaning the gap that led to this collision wasn't unique to one service.

Recommended Actions

MAIB Report 17/2020 made two recommendations, to Mid and West Wales Fire and Rescue Service and the National Fire Chiefs Council:

2020/129 — Review crewing and staff qualification requirements for boats, implement measures to maintain crew competency as boat helmsmen, and improve auditing processes to include boat operations
2020/130 — Adopt a nationwide standard of boat operations for all craft capable of being operated at sea, across every UK fire and rescue service

Human Element Analysis

Communication

Manoeuvres had not been briefed to all participants before the exercise began. Neither crew had any information about what the other intended to do, when, or where — the most basic shared understanding a multi-craft exercise depends on was simply absent.

Situational Awareness

Without a designated exercise controller holding the full picture, no single person on the water had visibility of both boats' positions and intentions at once. Each crew's situational awareness was limited to their own plan — which is not the same as awareness of the exercise as a whole.

Challenge Culture

No qualification framework, auditing process, or nationwide standard existed to prompt anyone — crew, supervisor, or service — to ask whether this exercise needed a controller before it started. The absence of a structure to raise that question meant nobody did.

How This Pattern Repeats

Industry	Incident	The parallel
Aviation	Überlingen mid-air collision, 2002	Two aircraft, each following instructions from a different source with no unified real-time coordination between them, collided in controlled airspace — the same absence-of-unified-control pattern as two boats each following their own uncoordinated plan in the same stretch of water.
Rail	Ladbroke Grove rail crash, UK, 1999	Poor signal sighting and inadequate driver training meant a train passed a signal at danger into the path of another — a coordination and training gap, at the sharp end, that a systemic standard should have closed before it reached this point.
Offshore	Piper Alpha, 1988	A breakdown in communication between shifts about the state of ongoing maintenance meant one team acted without the information the other team held — the same underlying failure as two crews operating in the same space without a shared picture of what the other was doing.

See How You'd Handle It

This incident's investigation doesn't document a moment-by-moment decision sequence in enough detail to build a genuine branching scenario without inventing specifics the report doesn't provide. The Knowledge Checker below tests the exercise-control and briefing principles the case turns on.

What Every Exercise Organiser Should Take From This

Any training exercise involving multiple vessels operating in close proximity needs a designated exercise controller who can see, communicate with, and control all participants
All manoeuvres in a multi-boat exercise must be briefed to every participant before execution — improvised manoeuvres in close proximity at speed are not training, they're gambling
Boat operator qualification requirements should reflect the actual risk level of the operations, not a generic minimum
A consistent, nationwide standard for marine training operations closes the gap that lets inconsistent local practice go unchallenged

Test Your Knowledge

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