Glossary
EASA definitions
850 terms defined in 17 EASA regulations, each quoted verbatim from the Easy Access Rules with the article it comes from. Where several regulations define the same term, the page shows every wording side by side.
A
- [aerodrome] traffic density
- Abnormal situation
- Accelerate-stop distance available (ASDA)
- Acceptable means of compliance (AMC)
- Acceptance checklist
- Accessible
- Accident
- Acclimatised
- Accommodation
- Accreditation
- Accredited medical conclusion
- Accuracy
- Adequate aerodrome
- Adequate vertiport
- Adult
- Advisory airspace
- Advisory route
- Aerial work
- Aero-medical assessment
- Aero-medical examination
- Aerobatic flight
- Aerodrome
- Aerodrome ATS
- Aerodrome beacon
- Aerodrome control service
- Aerodrome control tower
- Aerodrome elevation
- Aerodrome equipment
- Aerodrome operating minima
- Aerodrome operator
- Aerodrome traffic
- Aerodrome traffic circuit
- Aerodrome traffic density
- Aerodrome traffic zone
- Aeronautical beacon
- Aeronautical data
- Aeronautical ground light
- Aeronautical Information Circular (AIC)
- Aeronautical information product
- Aeronautical Information Publication (AIP)
- Aeronautical information service
- Aeronautical mobile service
- Aeronautical station
- Aeroplane
- Aeroplane reference field length
- Aeroplane required to be operated with a co-pilot
- Aeroplane upset prevention and recovery training
- Aided night vision imaging system (NVIS) flight
- Air navigation services
- Air traffic
- Air traffic advisory service
- Air traffic control (ATC) clearance
- Air traffic control instruction
- Air traffic control service
- Air traffic control unit
- Air traffic service (ATS)
- Air traffic services
- Air traffic services (ATS) airspaces
- Air traffic services (ATS) reporting office (ARO)
- Air traffic services (ATS) unit
- Air-ground communication
- Air-ground control radio station
- Air-report
- Air-taxiing
- Airborne collision avoidance system (ACAS)
- Aircraft
- Aircraft address
- Aircraft de-icing
- Aircraft handling
- Aircraft loading
- Aircraft observation
- Aircraft operator
- Aircraft pushback
- Aircraft stand
- Aircraft stand taxilane
- Aircraft towing
- Aircraft tracking
- Aircraft tracking system
- Aircraft turnaround
- Aircrew
- Airmanship
- AIRMET information
- Airport standby
- Airship
- Airspace observer
- Airspace risk assessment
- Airway
- Airworthiness limitation section
- Alerting service
- Alternate aerodrome
- Alternative means of compliance
- Altitude
- Angular operation
- Anonymisation
- Applicant
- Approach control service
- Approach control unit
- Approved training organisation (ATO)
- Apron
- Apron management service
- Apron service road
- Apron taxiway
- Area control centre (ACC)
- Area control service
- Area navigation (RNAV)
- ARMS-ERC methodology
- ARO.RAMP
- Arresting system
- Article
- Assemblies of people
- Assessment
- Assessment of competence
- Assessor endorsement
- ATM
- ATM airborne severity score
- ATM ground severity score
- ATM Master Plan
- ATM overall severity score
- ATM/ANS
- ATM/ANS constituent
- ATM/ANS provider
- ATM/ANS system
- ATS route
- Audit
- Augmented flight crew
- Authorised representative
- Automatic dependent surveillance — broadcast (ADS-B)
- Automatic dependent surveillance — contract (ADS-C)
- Automatic terminal information service (ATIS)
- Automatically validated
- Autonomous operation
- Autonomous runway incursion warning system (ARIWS)
- Available FSTD
B
C
- C2 link
- Cabin crew member
- Cargo compartment
- Cargo or freight
- Category A with respect to helicopters
- Category B with respect to helicopters
- Category Enhanced
- Category of aircraft
- CE marking
- Ceiling
- Certificate
- Certification
- Certification specifications
- Certified category
- Certified minimum performance (CMP)
- Certifying staff
- Change-over point
- Chicago Convention
- Child/children
- Circling
- Circling approach operation
- Class of aeroplane
- Clearance limit
- Clearway
- Cloud base
- Cloud of operational significance
- Co-pilot
- Cockpit voice recorder (CVR)
- Code (SSR)
- Code share
- Colour safe
- Commercial air transport
- Commercial air transport (CAT) operation
- Commercial specialised operations
- Common information service
- Communicable disease
- Compacted snow
- Competency
- Competency element
- Competency framework
- Competency unit
- Competency-based training
- Competent authority
- Competition flight
- Complex aeroplane
- Complex helicopter
- Complex motor-powered aircraft
- Component
- Conformity assessment
- Conformity assessment body
- Congested area
- Contaminated runway
- Contingency area
- Contingency fuel/energy
- Contingency volume
- Continued safe flight and landing (CSFL)
- Continuing airworthiness
- Continuing oversight
- Continuous descent final approach (CDFA)
- Control and monitoring unit (CMU)
- Control and monitoring unit component
- Control area
- Control zone
- Controlled aerodrome
- Controlled airspace
- Controlled flight
- Controlled ground area
- Controller-pilot data link communications (CPDLC)
- Conventional tower
- Conversion report
- Converted meteorological visibility (CMV)
- Cooperative oversight
- Corrosion prevention and control programme
- Credit
- Credit report
- Crew member
- Critical area
- Critical failure for performance (CFP)
- Critical incident stress
- Critical maintenance task
- Critical phases of flight
- Cross-country
- Cruise climb
- Cruise relief co-pilot
- Cruising level
- Current flight plan (CPL)
- Current fuel/energy scheme
D
- Damage tolerance evaluation
- Damage tolerance inspection
- Danger area
- Dangerous goods (DG)
- Dangerous goods accident
- Dangerous goods incident
- Data link communications
- Data link-automatic terminal information service (D-ATIS)
- Data quality
- Data services provider (DAT provider)
- Data set
- Datum
- De-icing/anti-icing facility
- De-icing/anti-icing pad
- Decision altitude (DA) or decision height (DH)
- Declaration
- Declared distances
- Declared training organisation (DTO)
- Defined point after take-off (DPATO)
- Defined point before landing (DPBL)
- Delayed reporting
- Dependent parallel approaches
- Design of airspace structures
- Detect/detection
- Deviation Acceptance and Action Document
- Direct remote identification
- Disidentified information
- Displaced threshold
- Disruptive schedule
- Distance DR
- Distributor
- Downstream clearance
- Dry lease agreement
- Dry operating mass
- Dry runway
- Dry snow
- DTO training programme
- Dual instruction time
- Duty
- Duty period
- Dynamic airspace reconfiguration
- Dynamic load-bearing surface
E
- EBT module
- EBT practical assessment
- EBT programme
- Economic operators
- EFB application
- EFB host platform
- EFB system
- Effective intensity
- EFVS 200 operation
- EFVS operation
- ELA1 aircraft
- ELA2 aircraft
- Electronic flight bag (EFB)
- Elevated final approach and take-off area (elevated FATO)
- Eligible Mode S interrogator
- Emergency exit
- Emergency situation
- En route IFR flight
- Enhanced flight vision system (EFVS)
- Enhanced vision system (EVS)
- Enrolled pilot
- Enrolment
- EPA
- Equipment restraint area (ERA)
- Equipment to control unmanned aircraft remotely
- Equivalency of malfunctions
- ERCS matrix
- Error
- Error management
- Estimated elapsed time
- Estimated off-block time
- Estimated time of arrival (ETA)
- ETSO
- Eurocontrol
- European Aviation Safety Plan
- European Aviation Safety Programme
- European risk classification scheme or ERCS
- Evaluation phase
- Evidence based training (EBT) operator
- Evidence-based training (EBT)
- Examination
- Expected approach time
- Eye specialist
F
- Fatigue-critical baseline structure
- Fatigue-critical modified structure
- Fatigue-critical structure
- Filed flight plan (FPL)
- Final approach and take-off area (FATO)
- Final approach segment (FAS)
- Fixed light
- Flight and Navigation Procedures Trainer
- Flight crew member
- Flight data monitoring (FDM)
- Flight data recorder (FDR)
- Flight duty period ('FDP')
- Flight following
- Flight geography
- Flight geography area
- Flight information centre
- Flight information region
- Flight information service
- Flight instructor (FI)
- Flight level (FL)
- Flight monitoring
- Flight operations officer or flight dispatcher
- Flight plan
- Flight recorder
- Flight simulation training device (FSTD)
- Flight time
- Flight time under Instrument Flight Rules
- Flight Training Device
- Flight visibility
- Flight watch
- Flown solely by reference to instruments
- Flying display
- Follow-me mode
- Forecast
- Foreign object debris (FOD)
- Frangibility
- Frangible object
- Frost
- FSTD qualification
- Fuel/energy en route alternate (fuel/energy ERA) aerodrome
- Full Flight Simulator
G
- GBAS landing system (GLS)
- General air traffic
- Geo-awareness
- Go-around
- Graded area
- Ground emergency service personnel
- Ground handling organisation
- Ground movement
- Ground personnel
- Ground risk buffer
- Ground supervision
- Ground support equipment (GSE)
- Ground visibility
- Groundhandling service
- Grounding
- Guaranteed sound power level
- Guidance material (GM)
- Gyroplane
H
- Harmful interference
- Harmonised standard
- Hazard
- Hazard beacon
- Head-up display landing system (HUDLS)
- Heading
- Height
- Helicopter
- Helicopter air taxiway
- Helicopter clearway
- Helicopter emergency medical services (HEMS) operation
- Helicopter ground taxiway
- Helicopter hoist operation (HHO) crew member
- Helicopter stand
- Helicopter taxi-route
- Helideck
- Heliport
- Heliport elevation
- HEMS crew member
- HEMS flight
- HEMS HEC operation
- HEMS operating base
- HEMS operating site
- HHO flight
- HHO offshore
- HHO passenger
- HHO site
- High risk commercial specialised operation
- High seas airspace
- High-risk area
- Hold-over time (HoT)
- Holding bay
- Holdover time
- Home base
- Hostile environment
- Hot spot
- Hovering
- Human factors principles
- Human performance
- Human–machine interface (HMI)
I
- ICAO attachment
- ICAO location indicator
- ICAO Technical Instructions
- Ice
- Identification beacon
- Identify/identification
- IFR
- IFR flight
- IMC
- Importer
- In-seat instruction
- Incident
- Independent parallel approaches
- Independent parallel departures
- Infant
- Information security
- Information security event
- Information security risk
- Innovative air mobility (IAM) operations
- Inspection
- Instructor concordance
- Instrument approach operation
- Instrument approach procedure (IAP)
- Instrument flight time
- Instrument ground time
- Instrument meteorological conditions (IMC)
- Instrument runway
- Instrument time
- Integrity
- Interested party
- Intermediate holding position
- International standards and recommended practices
- Interrogator code allocation plan
- Into-plane fuelling service
- Introductory flight
- Investigation
- Isolated aircraft parking position
J
L
- Landing area
- Landing decision point (LDP)
- Landing direction indicator
- Landing distance at time of arrival (LDTA)
- Landing distance available
- Landing distance required (LDR)
- Landplane
- Language proficiency endorsement
- Large aeroplane
- Large helicopter
- Level
- Licence
- Licence endorsement
- Licensing authority
- Life changing injury
- Light UAS operator certificate
- Lighting system reliability
- Limit of validity
- Limitation
- Limited operations
- Limited overwater operation
- Limited panel instrument flight
- Line check
- Line flying under supervision
- Line-orientated flight scenario
- Linear operation
- LNAV
- Load control
- Loading instructions
- Local day
- Local helicopter operation (LHO)
- Local night
- Location Indicators
- Low-occupancy aeroplane
- Low-visibility operations (LVOs)
- Low-visibility procedures
- Low-visibility take-off (LVTO)
- LPV
- LSA aircraft
M
- Maintenance
- Maintenance check flight (MCF)
- Making available on the market
- Management systems harmonisation
- Manned VCA
- Manoeuvres training phase
- Manoeuvring area
- Manufacturer
- Marker
- Market surveillance authority
- Marking
- Mass and balance documentation
- Maximum operational passenger seating configuration (MOPSC)
- Maximum take-off mass
- Measured sound power level
- Medical history
- Medical passenger
- Meteorological services
- Meteorological watch office (MWO)
- Minimum descent altitude (MDA) or minimum descent height (MDH)
- Minor failure condition
- Misuse of substances
- Mixed EBT programme
- Mode (SSR)
- Mode S interrogator
- Mode S operator
- Model aircraft club or association
- Movement
- Movement area
- Multi-crew cooperation
- Multi-pilot aircraft
- Multi-pilot operation
- Multiple mode of operation
N
- National competent authority
- National conversion report
- Navigation services
- Near-parallel runways
- Network Manager
- Night
- Night duty
- Night vision goggles (NVG)
- Night vision imaging system (NVIS)
- Non-conventional aircraft
- Non-hostile environment
- Non-installed equipment
- Non-instrument runway
- Non-JAR-compliant licence
- NOTAM code
- Notice to airmen (NOTAM)
- Notification to captain (NOTOC)
- NVIS crew member
- NVIS flight
O
- Obstacle
- Obstacle clearance altitude (OCA) or obstacle clearance height (OCH)
- Obstacle limitation surface
- Obstacle protection surface
- Obstacle-free zone (OFZ)
- Occurrence
- Offshore location
- Offshore operation
- On-the-job training instruction
- On-the-job training instructor (OJTI) endorsement
- Open category
- Open sea area
- Operating crew member
- Operating site
- Operation in performance class 1
- Operation in performance class 2
- Operation in performance class 3
- Operation with operational credits
- Operational context
- Operational control
- Operational credit
- Operational suitability data (OSD)
- Operational volume
- Operator
- Operator proficiency check
- Organisation
- Organisation providing ground handling services in more than one Member State
- OSD
- Other standby
- Other training devices
- Out-of-the-window (OTW) view
- Outer main gear wheel span (OMGWS)
- Oversight
- Oversight planning cycle
P
- Pan-European service
- Part
- Part 21
- Part 21 Light
- Part-FCL licence
- Part-task trainer (PTT)
- Passenger boarding bridge
- Passenger handling
- Paved runway
- Payload
- Performance class A aeroplanes
- Performance class B aeroplanes
- Performance class C aeroplanes
- Performance criteria
- Performance objective
- Performance-based navigation (PBN)
- Personnel-carrying device system (PCDS)
- Pilot-in-command (PIC)
- Pilot-in-command under supervision
- Placing on the market
- Point of contact
- Populated area
- Portable EFB
- Portable electronic device (PED)
- Positioning
- Powered sailplane
- Powered-lift aircraft
- Pre-flight inspection
- Pressure-altitude
- Primary runway(s)
- Principal place of business
- Prioritisation of ramp inspections
- Private pilot
- Privately built UAS
- Problematic use of substances
- Product
- Proficiency check
- Proficient
- Prohibited area
- Protection area
- Provisional inability
- Psychoactive substance
- Psychoactive substances
- Public health
- Public interest site (PIS)
Q
R
- Radar
- Radio mandatory zone (RMZ)
- Radio navigation service
- Radiotelephony
- Ramp inspection
- Rapid exit taxiway
- RAT methodology
- Rating
- Rating endorsement
- Recall
- Recognise/recognition
- Rectification interval
- Reference time
- Refractive error
- Rejected take-off area
- Rejected take-off distance available (RTODA)
- Rejected take-off distance required (RTODR)
- Remote aerodrome ATS
- Remote learning
- Remote pilot
- Remote tower
- Remote tower centre
- Remote tower module
- Renewal
- Repair evaluation guideline
- Repetitive flight plan
- Reporter
- Reporting point
- Required navigation performance (RNP) specification
- Reserve
- Rest facility
- Rest period
- Restricted area
- Revalidation
- RNP APCH
- RNP APCH operation down to LNAV minima
- RNP APCH operation down to LNAV/VNAV minima
- RNP APCH operation down to LPV minima
- RNP AR APCH
- Road
- Road-holding position
- Robustness
- Rotation
- Rotorcraft
- Route sector
- Route segment
- Rules of the air
- Runway
- Runway condition assessment matrix (RCAM)
- Runway condition code (RWYCC)
- Runway condition report (RCR)
- Runway end safety area (RESA)
- Runway guard lights
- Runway strip
- Runway surface condition
- Runway surface condition descriptors
- Runway turn pad
- Runway type
- Runway visual range (RVR)
- Runway-end safety area (RESA)
- Runway-holding position
- Runway-type FATO
S
- Safe forced landing
- Safe landing
- Safety area
- Safety investigation authority
- Safety management system
- Safety performance
- Safety performance indicator
- Safety performance target
- Safety risk score
- Safety-related aerodrome equipment
- Safety-sensitive personnel
- Sailplane
- Scenario-based training phase
- Seaplane
- Secondary surveillance radar (SSR)
- Sector
- Segregated parallel operations
- Sensitive area
- SEP aeroplane
- SEP helicopter
- Separate runways
- Serious incident
- Shoulder
- SIGMET
- Sign
- Signal area
- Significant
- Significant point
- Simple personnel carrying device system (simple PCDS)
- Simulator
- Single day free of duty
- Single European sky airspace
- Single ground handling organisation business grouping
- Single mode of operation
- Single-pilot aircraft
- Skill test
- Slippery wet runway
- Slush
- Small aeroplane
- Small category A helicopter
- Small helicopter
- SNOWTAM
- Solo flight time
- Sound power level LWA
- Special VFR flight
- Specialised operation
- Specially prepared winter runway
- Specific category
- Stabilised approach (SAp)
- Standard scenario
- Standby
- Standing water
- State Safety Programme
- Static load-bearing surface
- Sterile flight crew compartment
- Stopway
- Strayed aircraft
- Student pilot-in-command
- Substantiated sea conditions
- Suitable accommodation
- Surface friction
- Surface-level heliport
- Surveillance radar
- Switch-over time (light)
- Synthetic training device
- Synthetic training device instructor (STDI) endorsement
T
- Take-off alternate aerodrome
- Take-off decision point (TDP)
- Take-off distance available (TODA)
- Take-off distance required (TODR)
- Take-off flight path
- Take-off mass
- Take-off run available (TORA)
- Take-off runway
- Task specialist
- Taxiing
- Taxiway
- Taxiway intersection
- Taxiway strip
- Technical crew member
- Technical instructions (TI)
- Technical specification
- Territory
- Tethered gas balloon
- Threat
- Threat management
- Three-dimensional (3D) instrument approach operation
- Threshold
- Total estimated elapsed time
- Touchdown and lift-off area (TLOF)
- Touchdown zone
- Touring motor glider (TMG)
- Track
- Traffic avoidance advice
- Traffic information
- Traffic load
- Training course
- Training organisation
- Training to proficiency
- Transfer of control point
- Transition altitude
- Transition level
- Transponder mandatory zone (TMZ)
- Turnaround coordination
- Two-dimensional (2D) instrument approach operation
- Type A EFB application
- Type A instrument approach operation
- Type B EFB application
- Type B instrument approach operation
- Type of aircraft
- Type rating and licence endorsement list
U
- U-space airspace
- U-space service
- UAS component
- UAS geographical zone
- Unaided NVIS flight
- Undertaking
- Unidentified aircraft
- Uninvolved persons
- Union harmonisation legislation
- Unit endorsement
- Unit load device (ULD)
- Unmanned aircraft
- Unmanned aircraft observer
- Unmanned aircraft system (UAS)
- Unmanned aircraft system operator
- Unmanned free balloon
- Unmanned sailplane
- Usability factor
V
- V1
- Validation
- VEF
- VEMS flight
- VEMS operating base
- VEMS operating site
- VEMS technical crew member
- Vertical take-off and landing (VTOL)-capable aircraft
- Vertiport
- VFR
- VFR flight
- Virtual classroom
- Visibility (VIS)
- Visual aids
- Visual approach operation
- Visual approach slope indicator system
- Visual line of sight operation
- Visual meteorological conditions
- Visual presentation
- Visual surveillance system
- VMC
- VNAV
- Voice-automatic terminal information service (Voice-ATIS)
- VTOL take-off safety speed (VTOSS)
- VTOL-capable aircraft
- Vulnerability