BR-ANAC-PLA common mistakes
BR-ANAC-PLA · Understand the traps and how to avoid them.
Applying a memorised validity period to the wrong document - for example treating an aircraft's airworthiness certificate as if it expired like a medical certificate, or quoting the validity of a licence when the question asks about a rating or endorsement.
Candidates learn validity periods as a flat list of numbers without binding each number to the specific document, so under time pressure they retrieve a plausible duration and attach it to whatever the stem names.
What to do instead
Build a two-column table pairing each document (licence, type rating, medical certificate, airworthiness certificate, registration, radio station licence, insurance) with its validity and renewal condition, and rehearse it by covering one column and reconstructing the other until the pairing is automatic.
Choosing the answer that describes what a prudent pilot ought to do rather than the answer that matches the literal wording of the regulation, especially on questions about minimum equipment, fuel reserves and documentation carried on board.
Practical airmanship and regulatory minima often overlap but are not identical, and candidates who reason from experience rather than from the text pick the safer-sounding option.
What to do instead
For each regulation question, identify the operative verb and the exact condition in the stem (minimum, required, permitted, prohibited) before reading the options, then select the option that satisfies that condition even if a stricter practice exists.
Mixing up indicated, calibrated, true and ground speed when a question supplies altitude, temperature and wind, and then applying the wrong one in a time, fuel or drift calculation.
The four speeds are taught together and the correction chain (position error, installation error, compressibility, density, wind) blurs into a single mental step, so the candidate stops tracking which correction has already been applied.
What to do instead
Write the correction chain explicitly on scratch paper before computing: IAS to CAS to TAS to ground speed, noting which correction each step adds, and never carry a number forward without labelling its type.
Treating wind correction as a single subtraction - subtracting wind direction from heading or track and using the result directly, instead of resolving the wind into headwind and crosswind components.
The wind triangle is often memorised as a formula rather than understood geometrically, and the candidate forgets that only the crosswind component affects drift while only the along-track component affects groundspeed.
What to do instead
Sketch the wind triangle every time: draw track, plot the wind vector from the track point, then swing the true airspeed arc to close the triangle, and read drift angle and groundspeed from the drawing before confirming with the calculator.
Confusing the four stroke phases with what the piston and valves are actually doing, so that questions about valve timing, ignition timing or where power is produced are answered by phase name alone.
The sequence is learned as a chant (intake, compression, power, exhaust) without a mental picture of piston direction and valve state, which makes timing questions impossible to reason through.
What to do instead
Draw the cylinder four times, marking piston direction, both valve positions and the ignition event for each stroke, then annotate which stroke delivers power and why the ignition occurs before top dead centre.
Answering carburettor icing questions using outside air temperature alone, dismissing the risk whenever the temperature is well above freezing.
Candidates associate icing with cold weather and do not internalise that the temperature drop in the venturi plus the latent heat absorbed by fuel vaporisation can produce ice at ambient temperatures up to roughly 20 to 30 degrees Celsius with high humidity.
What to do instead
Learn icing as a function of temperature and humidity together, memorise the temperature band and humidity conditions in which carburettor ice is most likely, and practise recognising the associated symptom of a gradual RPM drop that worsens when carburettor heat is applied.
Reading aMETAR or TAF and reporting the visibility or cloud base from the wrong group, or ignoring the time validity and trend groups so that a forecast is treated as an observation.
Coded reports contain many similar-looking numeric groups and the candidate decodes them left to right without anchoring on the station, time and wind fields first, so subsequent groups shift.
What to do instead
Adopt a fixed decode order - station, time, wind, visibility, weather, cloud, temperature, pressure, trend - and write each decoded value next to its label; state aloud whether the product is an observation or a forecast before answering.
Confusing the roles and decision authority of the pilot flying and pilot not flying during an emergency, or answering crew resource management questions with the action that seems most decisive rather than the one that follows the prescribed division of duties.
Candidates conflate assertiveness with authority and have not rehearsed how task sharing changes between normal, abnormal and emergency phases, so they pick an answer where one pilot does everything.
What to do instead
Study the division of duties as a matrix across phases (taxi, takeoff, cruise, approach, emergency) and practise briefing scenarios where the pilot monitoring must challenge a deviation, so the correct allocation becomes recognisable rather than guessed.
Underestimating the effect of hypoxia onset with altitude and treating symptoms as obvious, so questions about the first signs of hypoxia or the time of useful consciousness are answered with later, more dramatic symptoms.
Textbook descriptions list euphoria, impaired judgement and reduced colour vision, but candidates remember the end stage (unconsciousness) because it is more vivid, and they do not connect the insidious onset to the need for supplemental oxygen.
What to do instead
Memorise time of useful consciousness at representative altitudes and learn the early subtle signs (light-headedness, tingling, impaired judgement, sense of well-being) as the decision trigger, then rehearse the correct response of oxygen, descent and land as necessary.
Answering performance questions with a single factor applied instead of combining all the relevant ones - for example correcting takeoff distance for density altitude but forgetting wind, slope, surface condition and aircraft mass.
Performance charts are practised one variable at a time in training, and candidates carry that habit into an exam question that deliberately supplies several variables at once.
What to do instead
Before touching the chart, list every variable given in the stem and tick each off as it is applied in the correct chart sequence, then sanity-check the result against the direction each factor should push the distance.