CAAB AME B1.2 case studies
CAAB AME B1.2 · Put your knowledge to work in context.
The Civil Aviation Authority of Bangladesh (CAAB - বেবিচক) publishes a dedicated AME examination area on its national portal, including an 'ই-এক্সাম এএমই' (E-Exam AME) section, an 'Exam Schedule (PEL)' link and a syllabus ('সিলেবাস') page, plus paper-based examination circulars and forms. This page covers the Category B1.2 licence examination - the piston-engine aeroplane maintenance engineer category - and is written for trainee engineers and working technicians who need to pass the authority's basic knowledge papers before qualifying for the licence. The CAAB AME B1.2 case studies are 5 cases and about 3,824 words.
1Constant-Speed Propeller: Slip Calculation and Fault Attribution
A piston-engined light aeroplane (direct-drive engine, two-blade constant-speed propeller of 1.93 m diameter) is returned to service after a propeller overhaul and blade-angle reset. On the test flight the pilot records 118 kt TAS at 2,400 rpm and 2,000 ft.
690 words, about 3 min2Starter Circuit Voltage Drop: Design Check versus In-Service Measurement
A 28 V DC system on a piston twin. The engine-start circuit uses one 25 mm2 copper cable with a total run (positive feed plus ground return) of 11 m.
742 words, about 4 min3Corrosion, Dissimilar Metals and a Blend-Out Limit on a Coastal Operator
An agricultural aeroplane operating from a coastal strip is in for a 100-hour inspection. Findings: (1) white powdery deposits around cadmium-plated steel screws securing a stainless steel access panel to a 2024-T3 wing upper skin; (2) a 7075-T6 aluminium alloy flap hinge bracket with blistering and lifting of the surface on the short-transverse face; (3) graphite-based anti-seize compound found on the stainless fasteners.
805 words, about 4 min4Ignition Switch Defect: A Check That Could Not Have Detected It
A 100-hour inspection on a piston single is signed off at 03:20 by an engineer working the second of three consecutive night shifts. The aircraft is booked for a 07:00 departure.
880 words, about 4 min5AD Hour Limit, MEL Deferral and Repositioning from an Outstation
Aircraft on a domestic charter in Bangladesh. An Airworthiness Directive requires a repetitive inspection of the elevator trim tab drive every 500 flight hours.
707 words, about 4 min