EASA Module 2 Physics case studies
EASA Module 2 Physics · Put your knowledge to work in context.
Module 2 - Physics is one of the basic-knowledge modules in the EASA Part-66 aircraft maintenance licence syllabus (Appendix I to Part-66, Annex I to Regulation (EU) No 1321/2014, or the equivalent retained national version). It is studied by trainee maintenance engineers working towards category B1 (mechanical) or B2 (avionics) certification, normally delivered by an approved Part-147 training organisation, with examinations set or recognised by the national aviation authority. The EASA Module 2 Physics case studies are 5 cases and about 2,799 words.
1Bonded Doubler: Thermal Expansion Mismatch
A repair scheme calls for a 0.60 m × 0.40 m × 1.6 mm 2024 aluminium alloy doubler to be bonded to a carbon-fibre skin. The film adhesive cures at 120 °C; the assembly then cools to the 20 °C shop temperature before the aircraft flies.
621 words, about 3 min2Engine Sling Angle on a Hoist
An engine change is in progress. The engine mass is 240 kg and it has two lifting eyes 3.4 m apart.
497 words, about 2 min3Tyre Pressure versus Temperature
A main-wheel tyre (volume 0.055 m³) is serviced to the manual figure of 210 kPa gauge at a ramp temperature of 15 °C. The same manual states a maximum permissible inflation pressure of 250 kPa gauge, at which the wheel's thermal fuse plugs are designed to melt.
531 words, about 3 min4Ground-Run Noise and Ultrasonic Coverage
A returning-to-service package contains two independent items. (1) With one engine at idle, the sound pressure level is 90 dB at 1.0 m from the intake lip.
554 words, about 3 min5Reading an Engraving Through a Perspex Window
An inspector must read a serial number engraved on the inner face of a 12 mm thick cast Perspex window (refractive index 1.49) and examine a 0.15 mm scratch on the same face. Her eye's near point is 250 mm.
596 words, about 3 min