GAFB 95

Listen up!

You might have heard, but did you really understand?

As I was compiling the reports in this edition of FEEDBACK it struck me that one of the common themes in a few of the reports was communications and the issues that can arise when we either fail to communicate, mishear/misinterpret information or are not clear in the messages that we transmit ourselves.  Aside from the obvious inability to communicate when equipment fails, poor communication, lack of clarity or being at cross-purposes can lead to serious misunderstandings that can have significant safety impacts.

Communication is not just a process of sending and receiving messages, but also a process of interpreting and negotiating meanings, and the meaning you intend is not necessarily the one the recipient takes away with them. Furthermore, communication is always complicated by an almost infinite number of factors such as expectations, attitude, prejudice, history, values and beliefs, moods, likes and dislikes, etc.

Information transfer is most efficient when all communication channels are available (i.e. aural and visual modes such as body language/gestures) – it’s thought that we communicate 20% through aural channels and 80% through visual channels by interpreting gestures, facial expressions, body language etc. We pilots are typically ‘visually’ focused (a picture paints a thousand words and all that) – what would you rather study, a graphic depiction or a few pages of text? Without all the visual channels being available (such as with R/T or textual documents), quite a complicated process of coding and decoding takes place before a message is received, interpreted and understood – the sender encodes the information and sends a message, the receiver decodes that message into information (hopefully the same information as was encoded!). For just that reason, with R/T we place specific emphasis on the use of standard pro-words with specific meanings that are easily decoded and understood even when transmission methods might be sub-optimal.

Understanding what might go wrong with communication and how to react when it does is therefore an important part of aviation resilience. How will the recipient perceive, interpret and reconstruct the information in a message? Has information been missed or misinterpreted? Are there unresolved uncertainties in the message? What will happen if the message is not received at all? What capacity does the recipient have to process the message? (it’s known that one of the first senses to be offloaded when under stress is hearing, and so aural communications must also be tailored to the circumstances of the recipient). The introduction of the ‘Student’ prefix to callsigns was done with exactly this latter aspect in mind so that students who may be operating at capacity are given extra consideration, time and space to understand and act on any messages from ATC or other pilots.

All of these considerations are important when composing aural- or textual-only messages that will be transmitted without face-to-face contact, and we all need to be sure that on receiving such messages we are clear about their meaning; if not, or there appears to be ambiguity, ask questions, face-to-face if possible! In other words, ‘don’t assume, check’ or, as our American cousins would say, ‘assume makes an ass out of u and me’. The CAA have recently issued an updated Safety Sense Leaflet 22 titled ‘Radiotelephony for General Aviation pilots’ that covers a wealth of useful information about radio communications and is well worth a read.

Safe flying in 2023,

Steve Forward, Director Aviation