Glossary of Terms
Here is a glossary of our frequently used aircraft maintenance related terms and abbreviations:
| Term | Definition |
|---|---|
| A Check | Depending on the Aircraft Type and Maintenance Program these regular checks are performed every xx flight hours or cycles |
| ACS | Airframe Care Services |
| AD | Airworthiness Directive - a mandatory notification issued to owners and operators of certified aircraft to address an unsafe condition |
| AGP | Malaga Airport |
| ALC | Alicante Airport |
| AMOS | Aircraft Maintenance and Engineering System by Swiss-AS |
| AMP | Aircraft Maintenance Program |
| AOC | Air Operator's Certificate |
| AOG | Aircraft On Ground - an aircraft prevented from flying due to a problem requiring maintenance in order to return to service |
| AOG Desk | Support desk offering stock availability on consumable and rotable aircraft parts and components for sale, loan or exchange to support your AOG, 24 hours a day, 7 days a week |
| ARC | Airworthiness Review Certificate |
| B Check | Aircraft maintenance performed approximately every 4–6 months |
| B1 | EASA Part 66 Category Aircraft Maintenance Licence - Mechanic |
| B2 | EASA Part 66 Category Aircraft Maintenance Licence - Avionics |
| Base Maintenance | Heavy aircraft maintenance or work outside of line maintenance carried out within a hangar |
| BHX | Birmingham Airport |
| C Check | Extensive aircraft maintenance performed approximately every 20–24 months or a specific amount of actual flight hours (FH) or as defined by the manufacturer |
| CAA | Civil Aviation Authority (UK) |
| CAMO | Continuing Airworthiness Management Organisation |
| CAR 21 | Certification procedures for aircraft and related products and parts |
| Check | Planned aircraft maintenance, performed at a specific amount of flight hours or cycles or as defined by the manufacturer |
| CMC | Component Maintenance Centre |
| CofA | Certificate of Airworthiness |
| Consumable | An aircraft part e.g. gaskets, seals, O-rings etc. that can only be used once |
| Cycles | An aircraft's takeoff and landing is considered a "cycle" |
| D Check | Heavy aircraft maintenance performed approximately every 5 years |
| DOA | Design Organisation Approval |
| EASA | European Aviation Safety Agency |
| EASA Part 145 | EASA regulations for Maintenance Organisation Approval |
| EASA Part 147 | EASA regulations for Training Organisation Requirements |
| EASA Part 21 G | EASA regulations for Production Organisation Approval |
| EASA Part 21 J | EASA regulations for Design Organisation Approval |
| EASA Part 66 | EASA regulations for Certifying Staff |
| EASA Part M | EASA regulations for Continuing Airworthiness |
| EDI | Edinburgh Airport |
| EMA | East Midlands Airport |
| ETOPs | Extended range Twin engine Operations |
| EWIS | Electrical Wiring Interconnection Systems |
| Expendable | An aircraft item e.g. oils, greases etc. that can only be used once |
| FAA | Federal Aviation Administration (USA) |
| FAR Part 145 | Federal Aviation Regulation Part 145 - Repair Station Certification (USA) |
| FH | Flight Hours |
| GCAA | General Civil Aviation Authority (UAE) |
| HMV | Heavy Maintenance Visit (D Check) |
| ICAO | International Civil Aviation Organisation |
| IFE | In-Flight Entertainment |
| IMV | Intermediate Maintenance Visit (C Check) |
| IOC | Integrated Operations Centre |
| LBA | Leeds Bradford Airport |
| LGW | London Gatwick Airport |
| Line Maintenance | Aircraft maintenance tasks which can be performed outside of a hangar (under open skies) except for situations in which the weather deteriorates to such conditions, that a hangar becomes mandatory |
| LMV | Light Maintenance Visit (A Check) |
| LTN | London Luton Airport |
| MAEL | Monarch Aircraft Engineering Ltd |
| MAETA | Monarch Aircraft Engineering Training Academy |
| MAN | Manchester Airport |
| MOC | Maintenance Operations Centre |
| MON | Monarch Airlines |
| MPAC | Maintenance Planning and Control |
| MPD | Maintenance Planning Document |
| MRO | Maintenance Repair and Overhaul |
| MSAVI | Monarch Standards and Values Information |
| MTS | Monarch Technical Support |
| OEM | Original Equipment Manufacturer |
| PBH | Power By the Hour |
| QA | Quality Assurance |
| QEC | Quick Engine Change |
| RAeS | Royal Aeronautical Society |
| RAF | Royal Air Force |
| Rotable | An aircraft component which has a serial number and can be repaired or overhauled e.g. engines, pumps, actuators etc. and returned to service |
| SB | Service Bulletin - an improvement in design or alteration often to improve costs or performance |
| SFAR 88 | Special Federal Aviation Regulation 88 - Fuel Tank Safety (USA) |
| SMART | Specialised Monarch AOG Response Team |
| SMS | Safety Management System |
| SRT | Single Running Task - forms part of an aircraft check |
| STC | Supplemental Type Certificate - issued after a modification |
| TC | Type Certificate - certification signifying the airworthiness of an aircraft's approved manufactured design |
| WAW | Warsaw Airport |
| WO | Workorder - a specific schedule of work which forms part of an aircraft check |
