EASA ATPL Package (former JAA) IFR Communications

IFR Communications

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Sample Question: IFR Communications

Question 7855
Click on an answer to check if it's correct
Select the correct definition for "estimated time of arrival" in respect to IFR flights:
A
The time at which it is estimated that the aircraft will arrive over that designated point, defined by reference to navigation aids, from which it is intended, that an instrument approach procedure will be commenced
B
In any case that time at which the aircraft will arrive over the aerodrome
C
The time at which the aircraft will actually arrive over that designated point defined by reference to navigation aids, from which it is intended, that a visual approach will be commenced
D
The time at which it is estimatad that the aircraft will arrive over that designated point defined by reference to visual aids, from which it is intended, that an approach will be commenced

Mastering IFR Communications for ATPL Success

IFR Communications is the backbone of safe instrument flying, blending precise radiotelephony, strict adherence to aviation regulations, and a solid grasp of procedures and aircraft systems. Under ICAO and EASA frameworks, pilots must prioritize messages correctly (distress, then urgency, then direction finding) and use standard phraseology to avoid ambiguity. For example, “Say again” is the correct request to repeat an entire message, and ATC route clearances must be read back unless the ATS authority has authorized otherwise. Weather and reporting terminology also matter: CAVOK indicates visibility of 10 km or more with no significant cloud below 5000 ft or the highest minimum sector altitude, and en‑route wind is expressed in degrees true and knots (magnetic is used for take-off and landing operations).

Navigation and surveillance communications focus on what avionics tell ATC and the pilot. A DME receiver provides slant-range distance to the station, critical for holds, approaches, and altitude checks. Mode S Aircraft Identification is the call sign from field 7 of the flight plan, enabling ATC to correlate radar targets with the correct aircraft. If an SSR transponder fails after departure on an IFR flight, the pilot must inform ATC immediately and comply with subsequent instructions. Compulsory reporting points require a position report in any case, particularly in procedural airspace. Familiarity with Q‑codes also appears in training: QTE denotes the true bearing from the station.

On and near the aerodrome, clear signaling and standard procedures prevent incursions and misunderstandings. In CAT II/III all‑weather operations, an illuminated stop bar (red lights across the taxiway) means taxiing across is not permitted until extinguished and clearance is received. During radio communication failure, aircraft forming part of the aerodrome traffic at a controlled aerodrome must keep watch for instructions issued by visual signals. Altimetry discipline is equally important: change from QNH to the standard setting 1013.2 hPa when passing the transition altitude; the transition level is set to ensure vertical separation—e.g., with a published TA of 5000 ft and QNH 1015 hPa, the transition level is FL60. If a pilot must hold at an initial approach fix, ATC issues an Expected Approach Time when the delay exceeds 20 minutes.

Technical proficiency extends to selective calling and navigation aids. SELCAL allows a ground station to selectively alert an individual aircraft over R/T channels, reducing continuous listening workload on long sectors. On the ILS, the middle marker’s aural identification is “dots and dashes.” Standard number pronunciation enhances clarity—e.g., “three thousand five hundred.” Equipment and regulatory compliance matter: operating IFR without a DME interrogator generally requires special permission. Mastering these details—phraseology, priorities, reporting, altimetry, and systems—builds the communication accuracy demanded in ATPL-level operations.

What this IFR Communications question bank covers

  • Radiotelephony phraseology: readbacks, message repetition, number pronunciation
  • Message priority and emergency handling: distress (MAYDAY), urgency (PAN‑PAN), direction finding
  • Meteorology terms in communications: CAVOK, wind units (degrees true, knots)
  • Position reporting: compulsory reporting points, holds, and Expected Approach Time (EAT)
  • Altimetry procedures: QNH vs 1013.2 hPa, transition altitude and transition level determination
  • Surveillance and identification: SSR/Mode S Aircraft Identification, transponder failure procedures
  • Navigation and aids: DME distance, ILS marker identifications, Q‑codes (e.g., QTE)
  • Aerodrome signals and surface movement: CAT II/III stop bars, visual signals during RTF failure
  • Systems and regulatory compliance: SELCAL usage, IFR operations without DME (special permission)