Mozambique IACM Private Pilot (PPL-A) common mistakes
Mozambique IACM Private Pilot (PPL-A) · Understand the traps and how to avoid them.
Quoting cruising altitude or flight level without stating whether the altimeter is set to QNH or standard pressure (1013.2 hPa), and giving a QNH value in the wrong unit or with the wrong number of digits.
Candidates memorise the transition altitude/level rule as a phrase but never practise converting between QNH and QNE settings, so they conflate 'altitude' and 'flight level' under exam pressure.
What to do instead
Drill a fixed template for every level answer: value + unit + reference setting (e.g. '3 500 ft on QNH 1013 hPa' or 'FL 065 standard'). Practise 20 conversions between hPa and inches, and always state the transition altitude/level for the route before answering.
Treating the semi-circular (hemispheric) cruising level rule as a single fixed rule and applying magnetic track 000-179/180-359 without checking whether the flight is IFR or VFR and which table applies.
The rule is learned once from a single example and never re-derived, so the candidate forgets that VFR and IFR tables differ and that the rule uses magnetic track, not heading or true track.
What to do instead
Reconstruct the rule from first principles each time: identify IFR/VFR, compute magnetic track from true track and variation, then apply the correct odd/even + 500 ft table. Do five worked examples covering both tables and both hemispheres of track.
Answering hypoxia or hyperventilation questions by symptom alone, without linking the symptom to the altitude band or to the corrective action sequence.
Symptoms overlap heavily (dizziness, tingling, euphoria) and candidates learn them as a list rather than as a decision tree, so they pick the plausible-sounding symptom instead of the correct cause-action pair.
What to do instead
Build a two-column table: cause → distinguishing sign → immediate action (100% oxygen and descend for hypoxia; correct breathing rate/ reassure and reduce rate for hyperventilation). Test yourself by covering one column.
Confusing the effects of spatial disorientation with those of the somatogravic and somatogyral illusions, and stating the wrong recovery instrument or control input.
The illusions are described in similar language and candidates never map each illusion to the specific false sensation and the instrument that overrides it.
What to do instead
For each illusion write: false sensation, triggering manoeuvre, instrument that gives the truth. Practise recalling that recovery is always by reference to instruments, never by 'seat of the pants'.
Reading a METAR or TAF and reporting the visibility or cloud as the first group given, ignoring that the prevailing visibility is the lowest reported and that CAVOK supersedes visibility/cloud/weather groups.
Candidates decode left-to-right and stop at the first number, and they forget CAVOK's definition and its conditions (visibility ≥10 km, no cloud below 5 000 ft, no significant weather).
What to do instead
Adopt a fixed decode order: wind, visibility (lowest), RVR, weather, cloud, temperature, QNH, trend. Practise 15 real-format METARs and explicitly state CAVOK conditions each time it appears.
Giving the QNH from a pressure chart or forecast without converting to the correct unit or without distinguishing QNH from QFE and QNE in the answer.
The three Q-codes are memorised as labels, not as definitions tied to the datum they reference, so the candidate picks whichever sounds familiar.
What to do instead
Write the definition of each once (QNH = altitude above MSL; QFE = height above aerodrome; QNE = standard setting), then answer every pressure question by naming the datum first, the value second.
Transmitting a readback that omits the callsign, or reading back only part of a clearance (e.g. level but not route or frequency).
Candidates rehearse phraseology in isolation and never practise full readbacks, so under time pressure they drop the mandatory elements.
What to do instead
Use a readback checklist: callsign, clearance limit/level, route or heading, frequency, squawk. Practise 10 scripted clearances aloud, ticking each element before moving on.
Using the wrong phonetic word or digit grouping for a frequency or squawk (e.g. saying 'one zero' instead of 'one zero' vs 'ten', or mispronouncing 'niner'/'fife').
Numbers are spoken naturally in everyday life; the aviation convention is only learned passively and not drilled to automaticity.
What to do instead
Drill the digit table aloud daily for one week (including 'tree', 'fife', 'niner'), then read 20 frequencies and squawk codes aloud and self-check against a written key.
Answering a stall question by naming the recovery input before stating the cause (angle of attack exceeding the critical angle), and confusing stall speed with a fixed value independent of weight, load factor and configuration.
The symptom (nose drop, buffet) is more memorable than the aerodynamic cause, and the fixed 'stall speed' figure from one example is over-generalised.
What to do instead
Answer in cause-then-action order: critical angle of attack exceeded → reduce angle of attack (forward pressure) → power as required → level wings. For speed questions, always state the variables (weight, load factor, configuration, power).
Computing a crosswind component or density-altitude effect using the wrong formula or by mixing units (kt vs m/s, ft vs m, °C vs °F) without converting first.
Candidates learn one worked example and then apply the numbers without checking units or whether the formula needs the sine of the angle or a table lookup.
What to do instead
Before any calculation, write the units of every input and the target unit. Use a fixed formula card (crosswind = wind speed × sin(angle); headwind = wind speed × cos(angle)) and re-check with a sanity estimate.
Planning a VFR flight without verifying that the planned endurance includes the correct reserve and that the fuel calculation uses the correct consumption at the planned power setting.
Reserve rules are memorised as a percentage without linking them to the flight time or to the specific VFR reserve requirement, and consumption is taken from memory rather than the aircraft data.
What to do instead
Use a planning template: trip fuel + contingency + alternate + final reserve, each computed separately and summed. Always quote the source of the consumption figure (POH/ AFM) and check the total against endurance.
Confusing magnetic heading, magnetic track, true heading and true track, and applying variation in the wrong direction.
The 'variation east, magnetic least' mnemonic is recalled but not applied to a diagram, so sign errors pass unnoticed.
What to do instead
Draw a north diagram for every navigation question: true north, magnetic north, aircraft heading, track, wind. Apply variation on the diagram, not in your head, then read the answer off the diagram.