EASA090 aviation-communications foundations case studies
EASA090 aviation-communications foundations · Put your knowledge to work in context.
This independent study page provides practice for EASA090 aviation-communications foundations. Its editorial learning areas include Messages, identity, clearances and readbacks; Distress, urgency and communication contingencies; Radio systems and information services. The questions develop subject knowledge and application through worked reasoning, distinctions between competing answers, and practical scenarios. Study the relevant guide before attempting a mixed set, then explain the evidence or calculation that supports each answer. Topics on this exam: Messages, identity, clearances and readbacks, Distress, urgency and communication contingencies, and Radio systems and information services. The EASA090 aviation-communications foundations case studies are 4 cases and about 743 words.
1A readback preserves the clearance
A fictional classroom recording contains an addressed instruction to climb to flight level one two zero. The learner's readback instead states flight level one three zero. The controller hears this discrepancy before the aircraft acts. One observer says the readback has now amended the clearance automatically; another proposes saying ROGER and leaving the two different values unresolved.
185 words, under 1 min2A condition is not optional wording
A fictional paper exercise presents a conditional instruction to line up behind a specifically identified landing aircraft, with the condition repeated at the end. The exercise states that the landing aircraft has not yet passed the relevant point and supplies no further clearance. One learner retains only LINE UP in the readback and proposes immediate entry. Another notices that this removes the condition and treats the words as a take-off clearance.
185 words, under 1 min3Classify the stated condition
A fictional communication exercise provides two complete condition descriptions. In scenario A, a person faces grave and imminent danger and immediate assistance is required. In scenario B, a problem concerns safety but the exercise expressly says it does not require immediate assistance and does not meet the distress description. The task is limited to selecting the appropriate radiotelephony priority signal for each supplied condition.
189 words, under 1 min4A theoretical radio-horizon calculation
A fictional technical worksheet explicitly defines maximum geometric radio range in nautical miles as 1.23 times the sum of the square roots of antenna heights in feet. It places the aircraft antenna at 3,600 feet and the ground antenna at sea level. Ignore terrain, interference and other propagation effects for this model. The exercise asks for the numerical result and whether it proves reliable communication at that distance.
184 words, under 1 min