The concern related to the incorrect information contained in the CASA training material which relates to the radio broadcast required at non-towered aerodromes.
The reporter advised that there is an issue with the CASA training material in relation to the radio calls used during the DVD package Operations at non-towered aerodromes copyright 2010 ref 1004.1262.
The reporter advised that the DVD has several incorrect examples of the radio broadcast which should be made in the vicinity of an aerodrome. The DVD is using an example of the Bathurst CTAF and correctly uses ‘Bathurst Traffic’ at the beginning of the broadcast but it also uses this at the end of the broadcast. The broadcast should end with the place name.
Reporter comment: While this sounds like a minor matter, in a congested radio environment properly marking the beginning and end of a transmission is very important. Having training material that contradicts the AIP makes it very difficult for instructors.
CASA has reviewed the REPCON and while every effort is made to ensure that training materials reflect the requirements of Aeronautical Information Package (AIP), there is also benefit in reflecting real world practice ensuring that this complies with the relevant regulation.
The AIP, just as the training aid (DVD) describes, is a recommended method of complying with Civil Aviation Regulation (CAR) 166 C (2) which requires only that ‘the pilot must make a broadcast that includes the following information whenever it is reasonably necessary to do so to avoid a collision, or risk of a collision with another aircraft:
- The name of the aerodrome
- The aircraft type and call sign
- The position of the aircraft and the pilot’s intention.’
The addition of the word ‘traffic’ is not required by the regulation before or at the conclusion of the transmission. The method provided in the AIP is a reasonable approach to delivering information in a transmission to comply with CAR 166 C.
Unnecessary radio transmissions could be a safety issue in a congested environment as it may prevent others from transmitting or transmitting in a timely manner. It is suggested that instructors discuss with students the judicious use of radio transmissions in such an environment. Ultimately the outcome sought is to pass on sufficient operational information to ensure the safety of all airspace users.