Mozambique IACM Commercial Pilot (CPL-A) common mistakes
Mozambique IACM Commercial Pilot (CPL-A) · Understand the traps and how to avoid them.
Quoting ICAO Annex figures (e.g. VFR minima, altimeter tolerances) as if they were the directly applicable Mozambican rule, instead of the figure published in the IACM regulation.
Candidates study Annexes and foreign (often European or South African) rule sets because IACM material is harder to obtain, then assume the numbers are identical.
What to do instead
For every numeric limit, learn the IACM-published value and note explicitly where it departs from the ICAO Annex default; build a one-page comparison sheet and revise it before the exam.
Confusing the classes of airspace and the associated VFR weather minima and clearance requirements when answering scenario questions about flight in controlled airspace.
Airspace classes are learned as a table to memorise rather than as a set of privileges and obligations, so candidates cannot apply them to a described situation.
What to do instead
For each class, state aloud the VFR minima, clearance requirement, and service provided, then answer practice scenarios by first identifying the class and only then recalling the numbers.
Describing a system's function without tracing its flow or interlock - for example explaining what a fuel selector does but not how fuel reaches the engine, or what happens when a bus tie fails.
Study focuses on component names and purposes from summaries, without building a mental schematic of the system as a whole.
What to do instead
Draw the system from memory (fuel, electrical, hydraulic, pitot-static, vacuum) with flow arrows and failure points, then check against the technical notes and redraw until correct without reference.
Mixing up engine parameters and their limits - for example treating CHT and EGT limits as interchangeable, or misstating what a rise in oil temperature with steady pressure indicates.
Limits are memorised as a list of numbers detached from the gauge that displays them and the condition each protects against.
What to do instead
Pair each limit with its instrument, its unit, and the failure it warns of; practise interpreting abnormal indications as short cause-and-effect statements.
Computing take-off or landing distance from the chart and stopping there, without applying wind, slope, surface, mass or safety-factor corrections in the correct order.
Candidates treat the chart output as the answer and rush the correction stage, or apply corrections in an order that produces a different result.
What to do instead
Adopt a fixed written sequence - mass, pressure altitude, temperature, wind, slope, surface, then factor - and show every step in the working so the order is auditable.
Producing a mass-and-balance result that is within limits by mass but outside the centre-of-gravity envelope, and declaring the loading acceptable.
The check is reduced to comparing total mass with maximum mass, with the CG plot treated as a formality or skipped under time pressure.
What to do instead
Always complete the CG plot and state the resulting CG position and whether it lies within the forward and aft limits; treat a mass-only answer as incomplete.
Answering human-performance questions by intuition about what a 'good' pilot would do, rather than by naming the specific perceptual or cognitive limitation involved.
The subject is studied as general airmanship rather than as a body of named effects with defined mechanisms and countermeasures.
What to do instead
For each topic (hypoxia, spatial disorientation, illusion, fatigue, workload, decision bias) learn the mechanism, the classic symptom set, and one concrete mitigation, and answer by naming them.
Reading a weather chart or METAR and reporting only the headline condition, missing the trend, the significant cloud, or the timing of a forecast change.
Decoding is practised on isolated elements rather than on the whole message, so candidates stop once they have the visibility and wind.
What to do instead
Decode every message completely and in a fixed order - wind, visibility, weather, cloud, temperature, pressure, trend - and state in one sentence what it means for the planned flight.
Plotting a course and measuring distance but not converting between true and magnetic, or not correcting for wind, before quoting a heading.
The sequence from chart to heading is compressed, and variation, deviation and drift are applied inconsistently or in the wrong direction.
What to do instead
Work the full chain explicitly on paper - true track, variation to magnetic, deviation to compass, then wind correction - and sanity-check the sign of each correction.
Describing an emergency procedure as a list of actions without stating the immediate priority, the memory items, and the point at which the checklist is consulted.
Procedures are learned as sequences of switches rather than as prioritised responses to a defined situation.
What to do instead
For each major emergency, state the priority (control, configure, communicate), the memory items, and the trigger for the checklist; rehearse them as spoken drills rather than reading them.
Reciting a radiotelephony phrase without confirming that it conveys the required elements (callsign, position, level, intention) in the correct order and with correct readback.
Phraseology is memorised as sound patterns, with readback and completeness treated as optional flourishes.
What to do instead
Practise transmitting each standard call from a written element checklist and always read back clearances, confirming the elements received rather than merely repeating sounds.