CAAB AME B1.1 Exam key terms

A mandatory instruction issued by an aviation authority requiring inspection, modification, or repair of an aircraft or component to correct an unsafe condition. Compliance is legally required within the stated time or usage limit.

A document issued by a manufacturer recommending or describing a modification, inspection, or maintenance action. It is advisory unless an airworthiness authority makes it mandatory through an AD.

A maintenance or inspection task, usually from the manufacturer's certification programme, that must be accomplished within defined limits to keep the type certificate valid. It is approved by the certification authority.

The approved schedule of tasks, intervals, and procedures that keeps an aircraft airworthy. It is derived from manufacturer recommendations, regulatory requirements, and operator experience, and must be approved by the competent authority.

A defined package of inspection and servicing tasks performed at a specified interval or flight-hour limit. Checks range from frequent light inspections to heavy structural examinations, and each package is recorded on completion.

The certification, after maintenance, that an aircraft or component is fit for return to operation. It is issued by authorised personnel after all required tasks are completed and recorded.

The signed document or entry confirming that specified maintenance has been completed satisfactorily and the aircraft or component is fit for release. It identifies the work done, the date, and the certifying person.

A person holding the appropriate licence and authorisation to sign a certificate of release to service after maintenance. They must have the type training, recent experience, and company authorisation needed for the task.

The European aircraft maintenance licence issued under Annex III of the applicable regulation. It certifies that the holder has met the basic knowledge, experience, and examination requirements for a category such as B1.1.

A maintenance licence category covering mechanical and electrical systems on turbine-engine aeroplanes. The holder may certify maintenance within the category limits and typically works as a mechanical certifying technician.

All processes ensuring an aircraft remains compliant with airworthiness requirements throughout its service life. It covers maintenance, inspections, modifications, defect control, and record keeping, and is managed under Part-M requirements.

An organisation approved by the competent authority to perform maintenance, inspection, or repair on aircraft and components. It must hold the correct ratings, facilities, staff, and procedures for the work it carries out.

The approval under European regulation Part-145 that allows an organisation to carry out maintenance on aircraft and components and issue certificates of release to service. It requires documented procedures, qualified staff, and suitable facilities.

The aircraft document used to record defects, maintenance actions, and releases between scheduled checks. It travels with the aircraft and provides a continuous record of its operating condition.

The formal entry of a fault or damage in the aircraft technical log or maintenance record. It must describe the defect clearly and be followed by rectification and a new release before further flight.

An approved document listing equipment that may be inoperative while the aircraft still operates under defined conditions. It specifies the operational and maintenance procedures needed before dispatch with that item unserviceable.

A known fault that is allowed to remain uncorrected for a limited period under the MEL or an approved procedure. It must be recorded, placarded where required, and corrected within the stated limit.

The manufacturer's document describing approved maintenance procedures, tolerances, and test methods for an aircraft type. Technicians use it as the primary reference when performing scheduled or unscheduled work.

A manufacturer document that identifies components and part numbers by figure and item number. It is used to order correct parts and to confirm part applicability during maintenance and repair.

A component or material that meets the type design and is authorised for installation on a particular aircraft. It must be traceable to an approved source and accompanied by the correct documentation.

The authorised release certificate for aircraft parts and materials, confirming they were produced or maintained to approved standards. It accompanies the part and supports its eligibility for installation.

A release document, such as an FAA 8130-3, certifying that a part or component conforms to approved design data and is safe for installation. It is widely accepted for imported parts subject to authority acceptance.

The ability to follow a part or maintenance action back through documented records to its origin and approvals. It proves that materials, processes, and personnel met the required standards.

Any document that records work performed, defects found, parts fitted, and releases issued. Records must be legible, retained for the required period, and available for authority inspection.

The study of how human capabilities and limitations affect maintenance performance and safety. It addresses fatigue, communication, teamwork, and error prevention, and is a required element of maintenance training.

A set of twelve common human-factor contributors to maintenance error, including fatigue, complacency, pressure, and lack of communication. The list is used to raise awareness and prompt mitigation during training.

A person's accurate perception of what is happening around them and what it means for the task. In maintenance it involves tracking aircraft state, work progress, and hazards to avoid omissions or unsafe actions.

The turning moment applied to a fastener, measured in newton-metres or pound-inches. Correct torque ensures joints hold their designed clamping force without damaging threads or surrounding structure.

A calibrated tool that indicates or limits the turning moment applied to a fastener. It must be checked for calibration and used with the correct adapters and procedure to achieve an accurate torque value.

The practice of securing fasteners against vibration-induced loosening using lockwire, cotter pins, tab washers, or self-locking nuts. The method must match the approved maintenance data for that location.

Generally accepted maintenance techniques and procedures, such as lockwiring, riveting, and fluid servicing, that apply across aircraft types. They are documented in manufacturer standard practice manuals and training material.

The electrochemical deterioration of metal caused by moisture, salt, chemicals, or dissimilar metal contact. It is controlled by inspection, protective coatings, cleaning, and prompt treatment of affected areas.

Measures that protect aircraft structures and components from chemical or electrochemical attack. They include coatings, sealants, drainage, washing programmes, and avoiding dissimilar metal contact without isolation.

Inspection methods that detect defects without damaging the part, such as dye penetrant, magnetic particle, ultrasonic, eddy current, and radiographic testing. Each method suits particular materials and defect types.

The primary examination of an aircraft or component using the eyes, sometimes aided by mirrors, borescopes, or magnification. It detects cracks, corrosion, leaks, and damage before more specialised methods are used.

The comparison of a tool's or instrument's output against a known reference to confirm accuracy within stated limits. Calibrated equipment is traceable, labelled, and used only within its valid calibration period.

A powerplant that extracts energy from high-temperature combustion gases to drive a compressor and produce thrust or shaft power. Its maintenance covers modules, borescope inspection, and performance checks.

An internal examination of engine or structure using a flexible or rigid optical instrument. It reveals cracks, erosion, and hot-section damage without dismantling the engine.

The defined configuration to which an aircraft or component is altered, including drawings and approved data. Embodiment must follow approved instructions and be recorded to keep the aircraft configuration controlled.