IRImplementing rule
SERA.14045Transmitting technique
(a)Transmissions shall be conducted concisely in a normal conversational tone.
(b)The following words and phrases shall be used in radiotelephony communications as appropriate and shall have the meaning ascribed in Table S14-4:
| Table S14-4 | |
|---|---|
| Phrase | Meaning |
| ACKNOWLEDGE | ‘Let me know that you have received and understood this message.’ |
| AFFIRM | ‘Yes.’ |
| APPROVED | ‘Permission for proposed action granted.’ |
| BREAK | ‘I hereby indicate the separation between portions of the message.’ |
| BREAK BREAK | ‘I hereby indicate the separation between messages transmitted to different aircraft in a very busy environment.’ |
| CANCEL | ‘Annul the previously transmitted clearance.’ |
| CHECK | ‘Examine a system or procedure.’ |
| CLEARED | ‘Authorised to proceed under the conditions specified.’ |
| CONFIRM | ‘I request verification of: (clearance, instruction, action, information).’ |
| CONTACT | ‘Establish communications with…’ |
| CORRECT | ‘True’ or ‘Accurate’. |
| CORRECTION | ‘An error has been made in this transmission (or message indicated). The correct version is…’ |
| DISREGARD | ‘Ignore.’ |
| HOW DO YOU READ | ‘What is the readability of my transmission?’ (see point SERA.14070(c)) |
| I SAY AGAIN | ‘I repeat for clarity or emphasis.’ |
| MAINTAIN | ‘Continue in accordance with the condition(s) specified’ or in its literal sense. |
| MONITOR | ‘Listen out on (frequency).’ |
| NEGATIVE | ‘No’ or ‘Permission not granted’ or ‘That is not correct’ or ‘Not capable’. |
| OVER | ‘My transmission is ended, and I expect a response from you.’ |
| OUT | ‘This exchange of transmissions is ended and no response is expected.’ |
| READ BACK | ‘Repeat all, or the specified part, of this message back to me exactly as received.’ |
| RECLEARED | ‘A change has been made to your last clearance and this new clearance supersedes your previous clearance or part thereof.’ |
| REPORT | ‘Pass me the following information…’ |
| REQUEST | ‘I should like to know…’ or ‘I wish to obtain…’ |
| ROGER | ‘I have received all of your last transmission.’ |
| SAY AGAIN | ‘Repeat all, or the following part, of your last transmission.’ |
| SPEAK SLOWER | ‘Reduce your rate of speech.’ |
| STANDBY | ‘Wait and I will call you.’ |
| UNABLE | ‘I cannot comply with your request, instruction, or clearance.’ |
| WILCO | (Abbreviation for ‘will comply’) ‘I understand your message and will comply with it.’ |
| WORDS TWICE | (a) As a request: ‘Communication is difficult. Please send every word, or group of words, twice.’ (b) As information: ‘Since communication is difficult, every word, or group of words, in this message will be sent twice.’ |
(c)The expression “TAKE-OFF” shall only be used in radiotelephony when an aircraft is cleared for take-off or when cancelling a take-off clearance.
IR · SERA.14045 — Regulation (EU) No 923/2012 · Regulation (EU) 2024/404 · SERA Easy Access Rules · EAR revision 26 Aug 2025