BR-ANAC-IFR study materials
BR-ANAC-IFR study resources

BR-ANAC-IFR common mistakes

BR-ANAC-IFR · Understand the traps and how to avoid them.

Mistake 1

Applying VFR weather minima to an IFR flight instead of recalling the specific IFR minimum visibility and cloud-clearance requirements, and confusing the minima applicable to takeoff, en-route, and approach phases.

Candidates memorise VFR minima from earlier training and reuse them, and they treat IFR minima as a single number rather than phase-specific values tied to the approach type and the aerodrome category.

What to do instead

Build a phase-based table (takeoff, en-route, approach/landing) for each approach category and rehearse it until recall is automatic; for each item, state in one sentence what the minima protect against, so the numbers attach to a reason rather than rote memory.

Mistake 2

Misidentifying which documents, certificates, and equipment are legally required for an IFR flight in controlled airspace, and answering from what the aircraft happens to carry rather than from the regulation.

Candidates conflate operational good practice with legal requirement, and they recall equipment lists from a specific aircraft rather than the general rule.

What to do instead

Study the regulation text itself and produce two separate lists: legally required items and operationally recommended items; then practise classifying each piece of equipment into one list with a one-line justification.

Mistake 3

Reading an IFR route or airway structure incorrectly, for example misreading minimum en-route altitudes, airway direction, or the meaning of a reported level versus an assigned level.

Candidates learn chart symbols visually but never practise converting a chart segment into a flight-plan clearance, so symbol recognition does not translate into operational decisions.

What to do instead

Take a route segment and write out, by hand, the clearance, the minimum en-route altitude, the direction of flight, and the changeover points; repeat with segments of increasing complexity until the conversion is fluent.

Mistake 4

Computing or interpreting position, track, and drift incorrectly, especially when converting between true and magnetic values or when applying wind correction.

Candidates mix up magnetic variation sign conventions and apply wind correction as a simple addition rather than resolving it as a vector, which produces plausible but wrong answers.

What to do instead

Drill the sign convention separately (east is least, west is best) until it is error-free, then solve wind triangles with a drawn vector diagram before using any formula; verify each answer by checking that the correction direction matches the wind direction.

Mistake 5

Misreading or misinterpreting forecast and observation products, such as confusing a trend forecast with a temporary condition, or treating an area forecast as valid for a specific aerodrome at a specific minute.

Candidates memorise product names and validity periods but not the semantics of change groups, probability groups, and coverage, so they extract the wrong conclusion from a correct reading of the text.

What to do instead

For each product, write a one-page decoder covering validity, change indicators, probability meaning, and spatial coverage; then practise on several decoded examples where the correct conclusion is stated and compared with the candidate's own.

Mistake 6

Underestimating the operational effect of icing, turbulence, and low visibility on the go/no-go decision, and treating the forecast as a pass/fail item rather than as a risk to be managed.

Candidates treat weather questions as recall of definitions instead of decision-making, and they lack a structured way to weigh severity against aircraft capability and alternates.

What to do instead

Rehearse a fixed decision framework: hazard, severity, exposure time, aircraft capability, escape option. Apply it aloud to three or four scenarios so the reasoning becomes a habit rather than an improvised judgement.

Mistake 7

Planning an IFR flight without a valid alternate or with an alternate that does not meet the required weather criteria, and miscalculating fuel to the alternate including the required reserve.

Candidates treat alternate selection and fuel planning as separate arithmetic exercises and forget that the alternate must satisfy specific forecast conditions at the estimated time of use.

What to do instead

Practise complete flight-planning scenarios end to end: select the destination, test each candidate alternate against the criteria, then compute fuel leg by leg with the reserve added last; check the total against the regulatory minimum.

Mistake 8

Managing the approach and missed-approach sequence incorrectly, for example descending below a published minimum without the required visual reference or turning before the published missed-approach point.

Candidates learn the approach plate as a picture to be read rather than as a sequence of decision gates, so under time pressure they skip the gate that authorises the descent or the turn.

What to do instead

Rehearse each approach as a spoken sequence of gates: interception, final approach fix, minimum descent altitude or decision altitude, visual reference, missed approach point, missed approach turn. State the condition that opens each gate before moving to the next.

Mistake 9

Using non-standard or incomplete phraseology in readback and position reporting, omitting items such as the assigned level, the heading, or the frequency, and failing to read back safety-critical clearances in full.

Candidates abbreviate under time pressure and assume the controller will infer the missing element, and they have not internalised which clearances require a full readback.

What to do instead

Practise readbacks aloud with a fixed template covering callsign, clearance type, level, heading or route, frequency, and any condition; record yourself and check each element against the original clearance before accepting the readback as complete.

Mistake 10

Misjudging separation and traffic sequencing in controlled airspace, for example assuming that an IFR clearance guarantees separation from all traffic or misunderstanding the meaning of a traffic advisory.

Candidates learn separation as a controller responsibility and therefore stop actively building a traffic picture, and they confuse an advisory with an instruction.

What to do instead

Study the division of responsibility between controller and pilot explicitly, and for each traffic-related phrase state who is responsible for what; then practise scenarios where the candidate must describe the traffic picture and the action required, if any.