Communication sits at the centre of the Core Competency Matrix for a reason. It is the link between Leadership and Teamwork and everything else — the mechanism by which decisions are transmitted, situational awareness is shared, and workload is either managed or compounded. And within Communication, this behaviour is the one that most directly determines whether that mechanism works.

The behaviour is named precisely: conveys messages and information clearly, accurately, and in a timely manner. Three qualifiers. They are easy to read past as a standard — a baseline expectation of professional communication. But treat them as that and you miss what they actually are. Clearly, accurately, and timely are workload management tools. Each one, if neglected, generates work for someone else on the flight deck, on the frequency, or on the ground. Each one, if handled well, removes it.

Three qualifiers — one standard
ClearlyNo ambiguity
Clear communication uses language, tone, and context to ensure the recipient understands the message without ambiguity. This applies equally to verbal, written, and non-verbal communication. In an environment characterised by language barriers, cultural variation, noise, and distraction, clarity is not a courtesy — it is a safety requirement. Say it clearly, say it once.
AccuratelyNo doubt
Accuracy means the recipient receives information that is factually correct and complete — nothing essential omitted, nothing incorrect included. Inaccurate information feeds directly into the decision-making process. Decisions built on inaccurate inputs are invalid, and correcting them costs time, increases workload, and degrades situational awareness. Incorrect information is worse than no information.
TimelyRight moment
Every piece of information sits somewhere on a spectrum from safety-critical and immediate to non-urgent and deferrable. Timely communication requires assessing where your message sits on that spectrum — and delivering it at the moment it can be received and acted on most effectively, not simply at the moment you have it.

Why It Matters Beyond the Obvious

The consequences of poor communication in aviation are well-documented and rarely subtle. Misunderstandings between crew members and controllers. Instructions that arrive too late to act on. Information that is technically correct but delivered at a moment of peak workload — and therefore not processed at all. The cascade from a single ambiguous transmission can be long.

But the less obvious consequence is the workload effect. Every unclear message generates a clarification request. Every inaccurate piece of information generates a correction cycle — the wrong action has to be identified, stopped, reversed, and replaced. Every poorly timed communication either interrupts a critical task or arrives after the moment of relevance has passed. All of this is additional cognitive load distributed across the crew at a moment when their capacity is already being consumed by the operation itself.

"Communicate the most amount of information in the least amount of words. If you can do this, you are generally achieving the goal of communicating clearly."

This is the deeper point about treating clearly, accurately, and timely as workload management tools rather than stylistic preferences. A pilot who consistently achieves all three is not simply being professional — they are actively managing the cognitive load of everyone around them. A pilot who routinely falls short of any one of them is generating avoidable work for the whole crew on every transmission.

How to Achieve It

Clarity in practice

The most useful discipline for clarity is a simple mantra: communicate the most amount of information in the least amount of words. Verbose communication forces the recipient to extract the relevant content from surrounding noise. Concise communication delivers it directly. The discipline to say precisely what is needed, and nothing more, takes deliberate practice — but once it becomes instinctive, clarity follows naturally.

Beyond concision: speak at an appropriate rate and volume for the environment. Avoid colloquialisms, slang, and informal acronyms that may not be shared by everyone on the frequency or in the flight deck. On the radio, standard phraseology exists precisely to eliminate the ambiguity that informal language introduces. Use it.

Key discipline

Before transmitting, assess your own message from the receiver's position. Have you been clear and unambiguous? Would someone with a different cultural background, a different level of situational awareness, or a higher workload understand exactly what you mean? If there is any doubt, restructure before you transmit.

Accuracy in practice

The rule here is straightforward: if you are in any doubt about what you are communicating, check it before you begin. This applies to performance figures, weather information, clearances, intentions, and any other piece of information that will be used as an input to someone else's decision-making. Do not assume. Do not round. Do not omit the qualification that changes what the number means.

Accurate communication also requires awareness of what you do not know. A message that presents an assumption as a fact, or an estimate as a confirmed figure, is inaccurate in the most operationally dangerous way — because the recipient will act on it with a confidence that the underlying information does not warrant.

Timeliness in practice

Timing requires situational awareness. Before transmitting, assess the cognitive state of the recipient. Are they task-saturated? Are they in a critical phase of a sequence that should not be interrupted? Is the information you have time-sensitive enough to justify the interruption, or can it wait until a natural breakpoint?

Safety-critical information that affects the immediate conduct of the flight must be communicated immediately, regardless of workload. Everything else requires a judgment about timing — and that judgment, made well and consistently, is one of the distinguishing marks of an experienced crew member.

The Briefing as a Test Case

The approach briefing is one of the best available tests of this behaviour in practice — because it requires all three qualifiers to be satisfied simultaneously, under a workload that is already building, at a phase of flight where the consequences of failure are greatest.

Approach briefing — applying the standard
Timely Choose a point of low workload early enough in the descent that the briefing is not competing with ATC instructions, ATIS updates, or altitude constraints. A briefing that starts too late is a briefing that gets interrupted — and an interrupted briefing is an incomplete one.
Accurate Bring current information. Weather, NOTAMs, chart revisions, aircraft status, minima. A briefing built on outdated or incomplete information creates a mental model in the other pilot that does not match reality — and that divergence will surface at the worst possible moment.
Clear An effective briefing is not an information dump. Reading figures aloud that can be independently cross-checked adds length without adding value. Focus on how you intend to operate the aircraft, what the threats are, and what is different from the normal case. That is what needs to be shared — and shared without ambiguity.

The briefing that satisfies all three — delivered at the right time, built on current information, focused on what matters — is not a long briefing. It is a precise one. The crew emerges from it with a shared mental model, a clear understanding of roles and intentions, and no outstanding questions. That shared model is the foundation on which every subsequent decision in the approach will be built.