CAA NZ AME Aeroplanes 1 (Subject 4) case studies
CAA NZ AME Aeroplanes 1 (Subject 4) · Put your knowledge to work in context.
Aeroplanes 1 (Subject 4) is one of the technical subject examinations that the Civil Aviation Authority of New Zealand administers for the Part 66 aircraft maintenance engineer licence. It is aimed at engineers who are building or extending an aeroplane (fixed-wing) licence and who need to demonstrate a broad, systems-level understanding of airframes and powerplants rather than a type-specific knowledge of one aircraft. The CAA NZ AME Aeroplanes 1 (Subject 4) case studies are 5 cases and about 2,896 words.
1Pressurized skin crack at an antenna doubler after a hard landing
An AME is inspecting a pressurized twin turboprop after a reported hard landing recorded at 2.4 g. The fuselage skin is 1.0 mm 2024-T3, differential pressure is 9 psi, and the airframe has 28 000 cycles.
611 words, about 3 min2Fuel quantity mismatch and free water after refuelling
A turboprop commuter aircraft has two 450 L wing tanks and capacitance fuel quantity probes. After a 300 L refuel, the cockpit gauges indicate 260 L total.
580 words, about 3 min3Alternator trip and avionics brownout during gear retraction
A 24 V DC light twin has one 70 A engine-driven alternator, a 24 Ah lead-acid battery and a 20 A avionics bus. During takeoff, when the 25 A landing-gear motor starts, the avionics flicker and the alternator offline light illuminates.
571 words, about 3 min4Nose gear door rigging and unsafe light after retraction test
A twin piston retractable-gear aeroplane is on jacks for a gear retraction check. Hydraulic pressure is 1 800 psi.
582 words, about 3 min5Propeller vibration and incomplete hub records at release
A turbocharged piston single has a three-blade constant-speed propeller. After blade dressing and a dynamic balance, the pilot reports 0.8 IPS vibration at 2 300 rpm; the previous reading was 0.15 IPS.
552 words, about 3 min