aviation abbreviations a to z

The final maintenance program is then approved by the appropriate aviation authority and constitutes the final maintenance planning document for a given operator / airline. In common language, the first meaning is prevalent. The information and services described here are available from the National Weather Service (NWS), the Federal Aviation Administration (FAA), and information service companies. Typically, general aviation refers to small aircraft used for private purposes. It was very helpful! BITE       – Built-In Test Equipment – a BITE test generally means, that a given piece of equipment (mainly avionics – electrical and electronic equipment) have test procedures built into them. This is accompanied by a fairly loud sound and therefore some airports limit the ability to use thrust reversers in which case only aerodynamic and hydraulic brakes can be used. For example an AFT galley is a galley located in the tail section of an aircraft, as opposed to a FWD (forward) galley, which would be located up front, in the proximity of the cockpit. CASFO — Civil Aviation Security Office. The QAR allows to download the data to a portable drive or, in some cases, transmits it wirelessly to the airline technical quarters. The MOE contains detailed description of how the organization intends to comply with all relevant regulations and perform its work. The QRH contains procedures for regular and emergency situations during flight. IPC         – Illustrated Parts Catalogue – a publication, created by the aircraft manufacturer, which lists all the parts which can be found on the aircraft. AD          – Airworthiness Directive – a document issued by an aviation authority, such as EASA or the FAA, in response to an unsafe condition of an aircraft type. In maintenance, everything that is ground related. Basically a “users guide” for the aircraft, present in the cockpit and used by the flight crew. “Quick access” means that the data can easily be accessed without removing the unit from the aircraft either by means of a memory card, a USB connection to a laptop, or – in more modern units – wirelessly. Every commercial operator needs to be a CAMO, whereas private operators and private aircraft may outsource CAMO tasks to third party providers. It is very bad practice to misuse the term AOG for situation which are not critical. LRU        – Line Replaceable Unit – any component of an aircraft or engine which can be replaced during line maintenance. AANS Egypt. CSSV     – Cycles Since Shop Visit – as many components do not have strict overhaul times, this acronym is sometimes used to describe the number of cycles a component has performed since the last shop visit (major repair, restoration, etc.). It is derived (at least once every four years) by physically weighing the aircraft and needs to be updated after significant modifications of the aircraft (such as interior layout changes or aircraft repainting). SVR        – Shop Visit Report – a report issued after a shop visit by the maintenance facility. This is a list of aviation, aerospace, aeronautical and avionics abbreviations. A PTF can be used if an aircraft defect arises at a location, at which there is no maintenance facility available to rectify it. A set of information about the maintenance and operating safety of aircraft fuel tanks. APU       – Auxiliary Power Unit – A small turbine engine, normally located in the tail section of an aircraft, used primarily to provide electrical power and air flow in an aircraft while it is on ground. TC           – Technical Consultant – a person, often a freelancer, hired by lease companies and operators to assist in the transition process of an aircraft (movement from one lessee to another). ETD        – Estimated Time of Departure – the time at which we expect an aircraft to depart. An SB contains information on how to modify an aircraft or aircraft maintenance schedule. Share; Share on Facebook; Tweet on Twitter; DBA?MWP?SMT?Not a problem. Some DA, DOD (Joint), NATO, or other U.S. Government abbreviations, brevity codes, and acronyms (ABCA) may be included. MFD      – Manufacture Date – the date an aircraft, engine or component has been manufactured. CNL        – Cancelled – everything can be cancelled. During an ACMI lease, the lessor must be an operator themselves and they provide a full service option to the lessee, meaning they provide a ready to fly aircraft with a full flight crew, maintenance support and flight insurance. BTB        – Back to Birth – A phrase used mainly in conjunction with the use of life limited parts. It specifies the location of equipment such as fire extinguishers, oxygen bottles, medical kits, ropes, etc. This is done so that the flight crew can easily find what they need even in a very stressful situation like a flight emergency. CDL        – Configuration Deviation List – A list of configuration changes in the aircraft. PAX       – Passenger – the word “passenger” seems to be too long for aviation personnel, and therefore the abbreviation PAX is being used. The LOI specifies vaguely the condition of the aircraft and the financial requirements, but also determines that the final lease will take place once all assumptions have been met. Click on any letter to find the abbreviation you need. The big boss when the aircraft is flying. Such changes must be approved by the local aviation authority. TE           – Trailing Edge – the aft (back) edge of flight surfaces (wings, horizontal and vertical stabilizers). HPC       – High Pressure Compressor – this is the compressor in a turbine engine, which takes in air already compressed by the previous, low pressure, compressor and compresses it even further. LOI         – Letter of Intent – the first document which is signed prior to an aircraft entering into an operating lease with a new lessee. Can be found in many situations, particularly with respect to aircraft parts. SN          – Serial Number – self-explanatory. The FARs are part of Title 14 of the Code of Federal Regulations (CFR) - FAA 14 CFR Part 145 is one of the most mature aviation regulations. Aspects such as landing fees are often based on the MTOW of an aircraft. ULB        – Underwater Locator Beacon – a device mounted to the flight data recorder (“Black box”) and the cockpit voice recorder. This is a very expensive way to run an operation, but often necessary if an operator’s own aircraft goes AGO in the middle of a high peak season. It is crucial to know that the person signing such a document has sufficient authority to do that. POH       – Pilot’s Operating Handbook – an operating manual carried on board of the aircraft, containing inflight procedures for the flight crew. Modern FDM systems record data from a series of flights and allow for easy access to the data by means of a QAR (quick access recorder). IB            – Inboard – used to describe the location of selected items with respect to the aircraft fuselage. Some features of the FMS are also useful for maintenance staff and inform of issues which may appear in selected aircraft systems. The purpose of the ELT is to allow search and rescue teams to find the wreckage of an aircraft. TSSV      – Time Since Shop Visit – basically the same thing as TSO. QM        – Quality Manual – a manual present in most certified organization, both Part M and Part 145 approved. The LW cannot be exceeded, which is why, in emergency situations, aircraft need to drop fuel before landing. FMS       – Flight Management System – a digital system on board of the aircraft used for overall flight management. We never collect any personal data from you, and we never use that data for any reason other than the above. Modern engines often don’t have a maintenance event referred to strictly as an overhaul. UTC       – Universal Time Coordinated – a notion of time used to ensure a steady timeframe in aviation without regard to different time zones and summer / winter time differences. SATIS    – Satisfactory – an acronym used often by maintenance staff after performing a test which has been passed. For now, there are only short explanations of each acronym, but I hope to be able to write a short blog post about most of them (for which it actually makes sense) and in this way create a comprehensive glossary of aviation terms. Based on such data, it is possible to determine what problems exist or will shortly exist on an aircraft. An aircraft without a valid ARC is not permitted to operate in Europe. Those parts are normally accompanied by a serviceable tag, which is customary green in color and clearly shows the letters SV. This index is intended to consist solely of Army in Europe peculiar terminology. For example “Tire pressure check performed. Thanks for sharing, they are very clear and helpful. Abbreviations used in aviation forecasts and warnings Check the meaning of the abbreviations used in our aviation forecasts and warnings. Another meaning of the Technical Log Book is a system of documents, which includes the log book mentioned above, but also several other documents such as the MEL, CDL, HIL and others. This constitutes complete components, like avionic units, whole engines or engine components like the FADEC. METAR is a format for reporting weather information. The list is derived from a master minimum equipment list, which is published by the aircraft manufacturer, but it can and should be updated by an airline and must be approved by the national aviation authority. Minor modifications may be only Part 21 approved, whereas major modification normally require a supplemental type certificate. W&B     – Weight and Balance – a document, carried on board of an aircraft, which specifies the weight of the aircraft and the location of its center of gravity. OCCM   – On Condition / Condition Monitored components – all components other than hard time or life limited components. ATA       – Air Transport Association – this US Association has been renamed to Airlines for America. Often used during major task, such as a large aircraft modification. It is common practice that cancelled entries must remain legible. GND      – Ground – the term is used on several occasions. An outboard engine is the engine furthest away from the fuselage. Fuel tank safety was given special attention after the disaster of flight TWA 800. DGR       – Dangerous Goods Regulations – regulations describing in what condition certain dangerous goods can be carried on board of an aircraft. It also is a basis for quality assurance (or compliance monitoring) within the organization. A NIS is required for back to birth traceability of life limited parts and also required by insurance companies as proof that a given aircraft or component has not been originally damaged. Those include tap testing, eddy current and ultrasonic inspections or x-ray pictures of aircraft structure. Find Every Definition of Acronym easily. FDR        – Flight Data Recorder – the actual name of the infamous “black box” (which is actually orange rather than black). IOSA      – IATA Operational Safety Audit – and audit of an airline the purpose of which is to confirm that the operator confirms to all IATA requirements. An OCCM component does not have any scheduled maintenance interval and its failure does not pose a threat to flight safety. The W&B chart is a basis for calculating the loading of an aircraft for each flight. QA         – Quality Assurance – a set of tasks performed to ensure that all processes within an organizations are carried out in accordance with the aviation regulations and internal company procedures. Those could be components which are defective or which are time expired – meaning they require specific maintenance actions to be performed before they can be installed on an aircraft. AGB       – Accessory Gearbox – a gearbox mounted on the engine of an aircraft, which transmits the shaft power to numerous mechanical devices, such as engine driven pumps. Your email address will not be published. It is not mandatory to issue a shop visit report, although they are to be expected especially after work performed on complex components such as engines or landing gear. CAB — Civil Aeronautics Board. The listing is divided into ATA chapters and provides part numbers for every part and component which may be replaced during regular aircraft maintenance. Those changes may be due to deferred defects or purposeful, temporary configuration changes of the aircraft (for example the removal of passenger seats). In Europe such organization need to have an EASA Part 145 approval. Full Forms related to all categories like Academic and Science, Business, Finance, Community, Computing, Governmental, Internet, Miscellaneous, Regional, Medical, Sports and International with hundreds of sub categories with described abbreviations with Full Forms list. Normally one flight is one cycle, but a training flight involving several “touch-and-go’s” may bring in several cycles. The following consolidations of the Civil Aviation Rules are for reference purposes only. CG          – Center of Gravity – the center of gravity of the aircraft is important for loading and balancing, and is determined during periodical weighing of the aircraft. IFSD       – In Flight Shutdown – a situation in which an aircraft engine needs to be shut down in flight. The CAME contains detailed and complete descriptions of all processes which take part in airworthiness management of aircraft. Np and Nr are typically shown on the same gauge with two needles, both expressed in percent, so that the pilot can tell if the power turbine is driving the rotor or if it is freewheeling. EWIS     – Electrical Wiring Interconnection System – an acronym used to describe the wiring system on an aircraft. CARF — Central Altitude Reservation Facility. It also steers the inflight entertainment system. The letter Z may be used as a suffix to denote a time being in the Zulu Time Zone, such as 08:00Z or 0800Z. The larger the size number, the smaller the wire diameter. to air traffic control. The purpose of carrying the D&B in the cockpit is to ensure that pilots and line station mechanics can determine whether a dent is new and requires evaluation or whether it has been already evaluated in the past. HUD      – Head Up Display – a see-through display in the cockpit. This is required for example when lease agreements or acceptance certificates are being signed. The deferral of such defects must be substantiated by proper documentation (such as the MEL, or special manufacturer or CAA permit). On modern airports, the GPU is not a cart anymore but rather a cable coming from the airport’s electrical system. A full ETOPS flight may operate as far as 180 minutes flight time away from nearest land. EEL         – Emergency Equipment List – a drawing (schematic) of the location of all emergency equipment on board of an aircraft. In aviation, above aerodrome level (AAL), or above aerodrome elevation (AAE), denotes that an altitude is given above the nearest aerodrome or airport. This is different from so-called block time, which is calculated from the moment the aircraft starts the engines to the moment when they are shut down again. The modification can be safety related, but it may also be for the purpose of fixing a known, but not safety related problem or simply to satisfy the need of an airline to make a modification to their fleet (such as change of livery). DOW     – Dry Operational Weight – the dry operational weight of the aircraft. In practice, this often means that ALI task have no tolerance for maintenance intervals. Global airline fleets, airport maps, airliner seating, military & airline videos, jet images, flight tracker and airline status, pilot license requirements, airport parking pictures, flight dates & aviation history. EW         – Empty Weight – An aircraft’s empty weight, with all technical fluids and all loose and additional equipment removed. This is a main parameter used to describe the age of an aircraft. This means, that an operator must have full knowledge when the part has been manufacture and a chronological list of all the aircraft it has been installed in since, with flight times and flight cycles as required. A CAMO may also have the privileges to extend the airworthiness review certificate (ARC) or issue a permit to fly (PTF). Required fields are marked *. Aviation Glossary – Acronyms and Abbreviations. This brochure is designed to help you use the NATIONAL AVIATION WEATHER SYSTEM to the fullest extent possible. The most basic flight data monitoring is done by modern flight data recorders, although some of them only keep records of the last flight. SB           – Service Bulletin – a technical document issued by the manufacturer (type certificate holder) of an aircraft or by a Part 21 design organization. TSO        – Time Since Overhaul – the amount of hours an aircraft component, such as an engine, has flown since the last major maintenance event, referred to as an overhaul. It stresses the importance of all items / parts present in a given zone with particular attention to electrical wires and wire bundles, their attachments and connectors. An ICA is often found as an appendix to a Part 21 modification. SATIS.”. engine-indicating and crew-alerting system, European Network of Civil Aviation Safety Investigation Authorities, European Organisation for Civil Aviation Equipment, Hazardous Inflight Weather Advisory Service, Instructions for Continuous Airworthiness, International Civil Aviation Organization, International Council of the Aeronautical Sciences, International Federation of Airworthiness, International Federation of Air Traffic Controllers' Associations, International Traffic in Arms Regulations, localizer performance with vertical guidance, Maneuvering Characteristics Augmentation System, National Institute of Standards and Technology, procedures for air navigation services – aircraft operations, simultaneous opposite direction parallel runway operations, terminal manoeuvring area (Europe)/terminal control area (USA and Canada), "Actual Off-Block Time - EUROCONTROL ATM Lexicon", http://rgl.faa.gov/Regulatory_and_Guidance_Library/rgccab.nsf/MainFrame?OpenFrameSet, https://www.casa.gov.au/rules-and-regulations/landing-page/current-rules, http://acronyms.thefreedictionary.com/HFE, http://acronyms.thefreedictionary.com/V%26V, https://en.wikipedia.org/w/index.php?title=List_of_aviation,_aerospace_and_aeronautical_abbreviations&oldid=1005919993, Short description is different from Wikidata, Articles needing additional references from October 2020, All articles needing additional references, Articles lacking reliable references from July 2016, Creative Commons Attribution-ShareAlike License. A component would typically be tagged with a red tag, clearly showing the letters US. of an aircraft. For less complex components, overhaul instructions may be included in the component maintenance manual (CMM). The chart is accompanied by a list which shows that the damage is in allowable limits. This can be a set of stairs, a crane, a jack or just about anything else. The glossary above has been prepared by me, based on my experience. – rather than focusing only on a single wire or set thereof. EASA     – European Aviation Safety Agency – a European international body, which regulates aviation issues. A hard time components requires repetitive maintenance actions performed at strictly defined intervals. Zulu Time Zone is often used in aviation and the military as another name for UTC +0. The check package should contain a list of all non-routine cards raised in order to ensure that all maintenance tasks, including unscheduled maintenance, have been fully completed or correctly deferred before the aircraft is released back to service. This program consists of maintenance tasks, which are mostly inspections of several parts of the aircraft. STCs are issued by Part 21 organizations and the aircraft OEM and approved by EASA directly. Its purpose is to keep those parameters saved in case of an accident, particularly a crash. Miscellaneous Abbreviations Browse thousands of Miscellaneous acronyms and abbreviations classified by 39 sub-categories. An operator must be approved by the aviation authority in order to fly under ETOPS. FAA       – Federal Aviation Administration – the US national aviation authority. Fuel tank safety training, and level 1 and 2, is required by maintenance technicians and maintenance managers alike. Find out what these mean to get familiar with the different abbreviated names for various operations, lines of business, and programs. If you miss any acronym which you would like to see in this glossary or believe that I may have gotten something wrong – please comment or drop me a line. CMM    – Component Maintenance Manual – a maintenance manual for aircraft components. HYD       – Hydraulic – either fluid, system, component or whatever else may be hydraulic. It powers a small generator which provides some electrical power to the aircraft’s systems thereby powering most crucial avionic components. EDP        – Engine Driven Pump – a fuel or hydraulic pump which is operated directly by engine power, through the accessory gear box. For example, this could be table showing which Part M regulations are described in which chapters or pages of the CAME. CAA — Clean Air Act. It also lists the part numbers and manufacturers of the seats, galleys and lavatories. TA          – Technical Acceptance – the process of accepting an aircraft. Below are some useful aviation acronyms for general guidance and use in the aviation industry. New Airline Basics YouTube channel! ADD       – Allowable Deferred Defect – an aircraft defect, which has been discovered during routine maintenance, but which has not been rectified immediately. Typically, an incorrect entry in the technical log book or on a task card. For example, on an aircraft with two engines under each wing, the engine closest to the fuselage would be called an “inboard” engine. PIREP    – Pilot Report – Information provided by the flight crew during or after a flight. Find out what is the full meaning of TBC on Abbreviations.com!

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