SPECIAL_DATE [Special dates]
An entity used to model special dates used in the description of the working/applicability/activation hours of various things, such as legal holidays, etc..
Attributes
CODE_TYPE [Type] mandatory
The type of the special date. Examples:' legal holiday', 'busy Friday', etc.
Domain: CODE_SPECIAL_DATE
DATE_DAY [Date] mandatory
The date concerned.
Domain: DATE_MONTH_DAY
DATE_YEAR [Year] optional
The year concerned. If no year is indicated, then the same date will be concerned every year.
Domain: DATE_YEAR
TXT_NAME [Name] optional
The name associated with the day (especially for public holidays).
Domain: TXT_NAME
TXT_RMK [Remark] optional
Domain: TXT_RMK
SPEC_NAV_STATION [Special navigation system station]
A land based station of a special navigation system.
Attributes
TXT_NAME [Name] mandatory
The textual name of the station.
Domain: TXT_NAME
CODE_TYPE_SER [Type of service] mandatory
A code indicating the type of service within the chain.
E.g. Master, Red Slave (DECCA), Slave (LORAN) etc..
Rules:
  1. The value of the CODE_TYPE_SER may be 'M' only if CODE_TYPE of the related SPEC_NAV_SYS is 'DECCA', 'LORANA', 'LORANC' or 'LORAND'.
  2. The value of the CODE_TYPE_SER may be 'S' only if CODE_TYPE of the related SPEC_NAV_SYS is 'LORANA', LORANC' or 'LORAND'.
  3. The value of the CODE_TYPE_SER may be 'RS', 'GS' or 'PS' only if CODE_TYPE of the related SPEC_NAV_SYS is 'DECCA'.
Domain: CODE_TYPE_SER_SPEC_NAV
VAL_FREQ [Frequency] optional
The value of the emission frequency.
Rules:
  1. If VAL_FREQ is specified, then UOM_FREQ is mandatory.
Domain: VAL_FREQ
UOM_FREQ [Unit of measurement [frequency]] optional
The unit of measurement of the emission frequency.
Domain: UOM_FREQ
CODE_EM [Emission] optional
A code indicating the type of emission, as defined at the 1979 ITU World Administrative Radio Conference.
Domain: CODE_EM_RDO
GEO_LAT [Latitude] mandatory
The latitude of the position of the special navigation system station.
Domain: GEO_LAT
GEO_LONG [Longitude] mandatory
The longitude of the position of the special navigation system station.
Domain: GEO_LONG
CODE_DATUM [Datum] mandatory
A code indicating the geodetic datum in which the geographical co-ordinates are expressed.
Rules:
  1. All geographical coordinates should be expressed in the WGS 84 system.
Domain: CODE_DATUM
VAL_GEO_ACCURACY [Geographical accuracy] optional
The horizontal distance from the stated geographical position within which there is a defined confidence of the true position falling.
Rules:
  1. If VAL_GEO_ACCURACY is specified, then UOM_GEO_ACCURACY is mandatory.
Domain: VAL_DIST_HORZ
UOM_GEO_ACCURACY [Unit of measurement [geographical accuracy]] optional
The unit of measurement for the value expressing the accuracy of the geographical co-ordinates.
Domain: UOM_DIST_HORZ
VAL_ELEV [Elevation] optional
The vertical distance of the position from Mean Sea Level. The geoidal height of the position.
Rules:
  1. If VAL_ELEV is specified, then UOM_DIST_VER is mandatory.
Domain: VAL_DIST_VER
VAL_ELEV_ACCURACY [Elevation accuracy] optional
The vertical distance from the stated elevation within which there is a defined confidence of the true position falling.
Rules:
  1. VAL_ELEV_ACCURACY may be specified only if VAL_ELEV has been specified.
Domain: VAL_DIST_VER
VAL_GEOID_UNDULATION [Geoid undulation] optional
A distance separating the geoid and the ellipsoid at that position. In respect of WGS-84 geodetic datum, the difference between the WGS-84 ellipsoidal height and geoidal height represents geoidal undulation.
Rules:
  1. VAL_GEOID_UNDULATION may be specified only if VAL_ELEV has been specified.
Domain: VAL_DIST_VER
UOM_DIST_VER [Unit of measurement [vertical distance]] optional
The unit of measurement for vertical distances: elevation, geoidal undulation.
Domain: UOM_ELEV
VAL_CRC [Cyclic redundancy check] optional
Hexadecimal value of a 32-bit polynominal cyclic redundancy check (CRC) over the values of a selected set of attributes that model critical, essential and routine data, according to ICAO Annex 15, item 3.2.10.
Notes:
Applications implementing the model shall decide and notify the specific attributes which are used for the CRC calculations, taking into consideration the requirements of the ICAO Annex 15.
Domain: VAL_HEX
TXT_VER_DATUM [Vertical Datum] optional
Attribute to take the "Vertical Datum" (viz. the tide gauge to determine MSL - for example, "AMSTERDAM GAUGE", "NEWLYN" etc.).
Domain: TXT_DESCR
TXT_RMK [Remark] optional
Domain: TXT_RMK
SPEC_NAV_SYS [Special navigation system]
A wide area (worldwide) navigation system based on a chain of land stations or a satellite constellation providing radio frequency signals which can be used by airborne equipment to determine at least, the aircrafts two-dimensional position or, depending on the capability of the system, the three-dimensional position.
Attributes
CODE_TYPE [Type] mandatory
A code indicating the type of special navigation system.
For example, LORAN, DECCA, GNSS, etc.
Domain: CODE_TYPE_SPEC_NAV_SYS
TXT_NAME [Name] mandatory
The textual name of the chain of a special navigation system.
For example, Mangern Chain DECCA.
Domain: TXT_NAME
CODE_ID [Identification] mandatory
A coded identifier of the chain.
Notes:
For most of the Special Navigation Systems, this ID will be the name of the system or of the chain, like "MANGERN CHAIN". Some other systems could have IDs which are different from the name.
Domain: CODE_ID_CHAIN_SPEC_NAV
TXT_RMK [Remark] optional
Domain: TXT_RMK
STAR [Standard instrument arrival [STAR]]
(ICAO) A designated instrument flight rule (IFR) arrival route linking a significant point, normally on an ATS route, with a point from which a published instrument approach procedure can be commenced.
Attributes
TXT_DESIG [Designator] mandatory
The textual designator of the STAR. For example, - FUL3A - a Standard Arrival beginning at designated point FUL
Notes:
According to ICAO Annex 11, Appendix 3, successive version are identified by incrementing the digit in the 6th position, from 1 up to 9.
Domain: TXT_DESIG_IAP
CODE_CAT_ACFT [Aircraft category] optional
A code indicating the class of aircraft based on 1.3 times stall speed in landing configuration at maximum certified landing mass.
Domain: CODE_CAT_ACFT
CODE_TRANS_ID [Transition identifier] optional
A code used to identify a branch of a STAR, as described in ARINC 424, 5.11.
Domain: CODE_ID_DESIG_PT
CODE_RNP [Required navigation performance] optional
A code indicating the navigation performance (RNP) required for an aircraft to fly a STAR.
Domain: CODE_RNP
TXT_DESCR_COM_FAIL [Communication failure description] optional
A textual description of the 'communications failure' procedure.
Domain: TXT_DESCR
CODE_TYPE_RTE [Type] mandatory
A code indicating the type of STAR.
For example, conventional, RNAV, etc..
Domain: CODE_TYPE_STAR
TXT_DESCR [Description] optional
A textual description of the arrival procedure.
Domain: TXT_DESCR
TXT_RMK [Remark] optional
Domain: TXT_RMK
STAR_USAGE [Usage of particular STAR]
The usage of a particular STAR with regard to timetable and whether or not it is subject to the Flexible Use of Airspace (FUA) concept.
Attributes
CODE_RTE_AVBL [Usage of the STAR procedure within the flexible use of airspace context] mandatory
A code indicating the usage of the STAR procedure within the Flexible Use of Airspace context.
Domain: CODE_RTE_AVBL
TXT_RMK [Remark] optional
Domain: TXT_RMK
SURFACE_CHARACTERISTICS [Surface characteristics]
An entity grouping together the attributes that model characteristics of an airport surface, such as strenght, material, etc.
Attributes
CODE_COMPOSITION [Surface composition] optional
A code indicating the composition of an aerodrome/heliport related surface. For example: asphalt, concrete, etc...
Domain: CODE_COMPOSITION_SFC
CODE_PREPARATION [Surface preparation method] optional
A coded indication of the preparation technique for the surface area.
Domain: CODE_PREPARATION_SFC
CODE_COND_SFC [Surface condition] optional
A qualitative code indicating the condition of a surface.
Domain: CODE_COND_SFC
VAL_PCN_CLASS [PCN Value] optional
Pavement classification number (PCN) for the surface.
Rules:
  1. The value should be lower than 200..
  2. If VAL_PCN_CLASS is specified, then CODE_PCN_PAVEMENT_TYPE, CODE_PCN_PAVEMENT_SUBGRADE and CODE_PCN_EVAL_METHOD must be specified. .
  3. If VAL_PCN_CLASS is specified, then CODE_PCN_MAX_TIRE_PRESSURE or VAL_PCN_MAX_TIRE_PRESSURE must be specified..
Domain: VAL_PCN_CLASS
CODE_PCN_PAVEMENT_TYPE [PCN Pavement type] optional
A coded indication of the pavement behavior (rigid or flexible) used for the ACN-PCN determination.
Domain: CODE_PCN_PAVEMENT_TYPE
CODE_PCN_PAVEMENT_SUBGRADE [PCN pavement subgrade] optional
A coded indication of the subgrade strength category related to the PCN number.
Domain: CODE_PCN_PAVEMENT_SUBGRADE
CODE_PCN_MAX_TIRE_PRESSURE [PCN Max tire pressure code] optional
A coded indication of the maximum allowable tire pressure category related to the PCN number.
Domain: CODE_PCN_MAX_TIRE_PRESSURE
VAL_PCN_MAX_TIRE_PRESSURE [PCN max tire pressure value] optional
The value of the maximum allowable tire pressure related to the PCN number, expressed in MPa (Mega Pascal).
Rules:
  1. The value should be lower than 2.00.
Domain: VAL_PRESSURE_PCN_TIRE
CODE_PCN_EVAL_METHOD [PCN evaluation method] optional
A code indicating the evaluation method for the PCN.
Domain: CODE_PCN_EVAL_METHOD
TXT_PCN_NOTE [PCN notes] optional
Notes with regard to the pavement classification number.
Domain: TXT_RMK
VAL_LCN_CLASS [LCN value] optional
The Load Classification Number (LCN) of the surface.
Rules:
  1. The value should be lower than 200..
Domain: VAL_LCN_CLASS
VAL_SIWL_WEIGHT [SIWL weight] optional
The value of the Single isolated Wheel Load (SIWL) weight.
Rules:
  1. If VAL_SIWL_WEIGHT is specified, then UOM_SIWL_WEIGHT is mandatory..
  2. If VAL_SIWL_WEIGHT is specified, then VAL_SIWL_TIRE_PRESSURE must be specified..
Domain: VAL_WEIGHT
UOM_SIWL_WEIGHT [Unit of measurement [SIWL weight]] optional
The unit of measurement for the SIWL weight value.
Domain: UOM_WEIGHT
VAL_SIWL_TIRE_PRESSURE [SIWL tire pressure] optional
The value of the Single Isolated Wheel Load (SIWL) tire pressure.
Rules:
  1. If VAL_SIWL_TIRE_PRESSURE is specified then UOM_SIWL_TIRE_PRESSURE is mandatory..
Domain: VAL_PRESSURE
UOM_SIWL_TIRE_PRESSURE [Unit of measurement [SIWL tire pressure]] optional
The unit of measurement for the SIWL tire pressure value.
Domain: UOM_PRESSURE
VAL_AUW_WEIGHT [All Up Wheel Weight] optional
The value of the All Up Wheel Weight.
Rules:
  1. If VAL_AUW_WEIGHT is specified, then UOM_AUW_WEIGHT is mandatory..
Domain: VAL_WEIGHT
UOM_AUW_WEIGHT [Unit of measurement [AUW weight]] optional
The unit of measurement for the AUW weight.
Domain: UOM_WEIGHT
SURFACE_LGT_GROUP [Surface lights (group)]
An individual light or a group of lights having the same characteristics (colour, spacing, intensity) which are part of an aerodrome/heliport surface lighting system.
Attributes
GEO_LAT [Latitude] mandatory
The geographical latitude of the light or of the lower left corner in case of a light group.
Domain: GEO_LAT
GEO_LONG [Longitude] mandatory
The geographical longitude of the light or of the lower left corner in case of a light group.
Domain: GEO_LONG
CODE_DATUM [Datum] mandatory
A code indicating the geodetic datum in which the geographical co-ordinates are expressed.
Rules:
  1. All geographical coordinates should be expressed in the WGS 84 system.
Domain: CODE_DATUM
NO_LEN [No. along centreline] optional
The number of lights in the group in the direction of the RWY or FATO centreline.
Notes:
For an individual light, this attribute may be left empty.
Rules:
  1. If NO_LEN is greater than 1, then VAL_LEN_SPACING is mandatory.
Domain: NO_NUMBER
VAL_LEN_SPACING [Inter-distance] optional
The distance between two consecutive lights within the group, in the direction of the RWY or FATO centreline.
Rules:
  1. If VAL_LEN_SPACING is specified, then UOM_DIST is mandatory.
Domain: VAL_DIST_HORZ
NO_WID [No. across centreline] optional
The number of lights in the group in the direction perpendicular to the RWY or FATO centreline.
Notes:
For an individual light, this attribute may be left empty.
Rules:
  1. If NO_WID is greater than 1, then VAL_WID_SPACING is mandatory.
Domain: NO_NUMBER
VAL_WID_SPACING [Inter-width] optional
The distance between two consecutive lights within the group, in the direction perpendicular to the RWY or FATO centreline.
Rules:
  1. If VAL_WID_SPACING is specified, then UOM_DIST is mandatory.
Domain: VAL_DIST_HORZ
UOM_DIST [Unit of measurement [horizontal distance]] optional
The unit of measurement for horizontal distances.
For example, metres, feet, etc. .
Domain: UOM_DIST_HORZ
CODE_SYMMETRY [Symmetrical to centreline] mandatory
A code indicating if there is a symmetrical light group on the other side of the RWY or FATO centreline, in which case only one of the two groups is described.
Domain: CODE_YES_NO
CODE_INTST [Intensity] optional
A code indicating the intensity of the lights in the group.
Domain: CODE_INTST_LGT
CODE_COLOUR [Colour] mandatory
A code indicating the colour of the lights in the group.
Domain: CODE_COLOUR
CODE_TYPE_LGT [Light type] optional
A code indicating the type of light source.
Domain: CODE_TYPE_LGT
TXT_RMK [Remark] optional
Domain: TXT_RMK
SURFACE_LGT_SYS [surface lighting system]
The lighting system provided for a component of the manoeuvring area, such as RWY, TWY, TLOF or FATO.
Attributes
TXT_DESCR [Description] optional
A textual description of the lighting system.
Domain: TXT_DESCR
TXT_DESCR_EMERG [Availability of emergency lighting system description] optional
A textual description of the emergency lighting system availability and its characteristics.
Domain: TXT_DESCR
CODE_INTST [Intensity] optional
A code indicating the global intensity of the lighting system.
Domain: CODE_INTST_LGT
CODE_COLOUR [Colour] optional
A code indicating the global colour of the lighting system.
Domain: CODE_COLOUR
TXT_RMK [Remark] optional
Domain: TXT_RMK
SWY [Stopway [SWY]]
(ICAO) A defined rectangular area on the ground at the end of take-off run available prepared as a suitable area in which an aircraft can be stopped in the case of an abandoned take-off.
Attributes
VAL_LEN [Length] optional
The value of the physical length of the stopway.
Rules:
  1. If VAL_LEN is specified, then UOM_DIM is mandatory.
Domain: VAL_DIST_HORZ
VAL_WID [Width] optional
The value of the physical width of the stopway.
Rules:
  1. This value must be equal with the value of the VAL_WID of the related RWY (throught RWY_DIRECTION).
  2. If VAL_WID is specified, then UOM_DIM is mandatory.
Domain: VAL_DIST_HORZ
UOM_DIM [Unit of measurement [horizontal dimension]] optional
The unit of measurement for the horizontal dimensions of the stopway.
Domain: UOM_DIST_HORZ
[CODE_COMPOSITION] DEPRECATED-4.5 [Surface composition] optional
A code indicating the composition of the stopway surface.
For example, asphalt, concrete etc..
Rules:
  1. If CODE_COMPOSITION is 'WATER', then CODE_COND_SFC, CODE_STRENGTH and TXT_DESCR_STRENGTH may not be specified.
Domain: CODE_COMPOSITION_SFC
[CODE_COND_SFC] DEPRECATED-4.5 [Surface condition] optional
A code indicating the condition of the stopway surface.
Domain: CODE_COND_SFC
[CODE_STRENGTH] DEPRECATED-4.5 [Surface strength method] optional
A code indicating the method used to measure the surface strength.
Rules:
  1. If CODE_STRENGTH has the value 'PCN', then the value of TXT_DESCR_STRENGTH shall conform to the rules for the PCN-ACN method, as specified in ICAO Annex 14, item 2.6.
    Examples:
    - '80/R/B/W/T'
    - '40/ F/ B /0.80 MPa /T'
    - '50/F/A/Y/U Note: - Composite construction'
    - '50/F/A/Y/U Note: - The reported PCN is subject to a B747-400 all-up mass limitation of 390 000 kg.'
    If no method is indicated in the 'Surface strength method' field, then there are no restrictions with regard to the content of this field. For example: 'LCN 72, h= 56'.
Domain: [CODE_STRENGTH_SFC]
[TXT_DESCR_STRENGTH] DEPRECATED-4.5 [Surface strength] optional
The surface strength, in character format, according to the value of the CODE_STRENGTH attribute.
E.g. 80/R/B/W/T for a PCN type value.
Domain: TXT_DESCR
CODE_STS [Operational status] optional
A code indicating the operational status of a stopway.
For example, serviceable, unserviceable, closed, work in progress, etc.
Domain: CODE_STS_SFC
TXT_PROFILE [Profile description] optional
A textual description of the SWY profile.
Domain: TXT_DESCR
TXT_MARKING [Marking] optional
A textual description of the marking system on the stopway.
Domain: TXT_DESCR
TXT_RMK [Remark] optional
Domain: TXT_RMK
TACAN [Tactical air navigation beacon [TACAN]]
A UHF Tactical Air Navigation beacon. A navigation system developed by military and naval forces providing, as far as the navigating pilot is concerned and for suitably equipped aircraft, the same indication as a VOR/DME system.
Attributes
CODE_ID [Identification] mandatory
The coded identification of the radio navigation aid.
Rules:
  1. CODE_ID shall not be duplicated within 600 NM of the location of the TACAN (see Annex 11, Appendix 2, paragraph 2.2.2).
Domain: CODE_ID_NAV_AID
GEO_LAT [Latitude] mandatory
The latitude of the position of the TACAN.
Domain: GEO_LAT
GEO_LONG [Longitude] mandatory
The longitude of the position of the TACAN.
Domain: GEO_LONG
TXT_NAME [Name] optional
The full textual name of the radio navigation aid.
Domain: TXT_NAME
CODE_CHANNEL [Channel] mandatory
A code indicating the channel of the TACAN system.
Domain: CODE_CHANNEL_TACAN
VAL_DECLINATION [Station declination] optional
The angular difference between the direction of the 'zero bearing' indicated by the station and the direction of the True North.
Domain: VAL_ANGLE_MAG_VAR
VAL_MAG_VAR [Magnetic variation] optional
The angular difference between True North and Magnetic North.
Rules:
  1. If VAL_MAG_VAR is specified, then DATE_MAG_VAR is mandatory.
Domain: VAL_ANGLE_MAG_VAR
DATE_MAG_VAR [Magnetic variation date] optional
The year the magnetic variation was measured.
Domain: DATE_YEAR
CODE_EM [Emission] optional
A code indicating the type of emission, as defined at the 1979 ITU World Administrative Radio Conference.
For example, A3E, NONA2a, G1D, etc..
Domain: CODE_EM_RDO
CODE_DATUM [Datum] mandatory
A code indicating the geodetic datum in which the geographical co-ordinates are expressed.
Rules:
  1. All geographical coordinates should be expressed in the WGS 84 system.
Domain: CODE_DATUM
VAL_GEO_ACCURACY [Geographical accuracy] optional
The horizontal distance from the stated geographical position within which there is a defined confidence of the true position falling.
Rules:
  1. If VAL_GEO_ACCURACY is specified, then UOM_GEO_ACCURACY is mandatory.
Domain: VAL_DIST_HORZ
UOM_GEO_ACCURACY [Unit of measurement [geographical accuracy]] optional
The unit of measurement for the value expressing the accuracy of the geographical co-ordinates.
Domain: UOM_DIST_HORZ
VAL_ELEV [Elevation] optional
The vertical distance of the position from Mean Sea Level. The geoidal height of the position.
Rules:
  1. If VAL_ELEV is specified, then UOM_DIST_VER is mandatory.
Domain: VAL_DIST_VER
VAL_ELEV_ACCURACY [Elevation accuracy] optional
The vertical distance from the stated elevation within which there is a defined confidence of the true position falling.
Rules:
  1. VAL_ELEV_ACCURACY may be specified only if VAL_ELEV has been specified.
Domain: VAL_DIST_VER
VAL_GEOID_UNDULATION [Geoid undulation] optional
A distance separating the geoid and the ellipsoid at that position. In respect of WGS-84 geodetic datum, the difference between the WGS-84 ellipsoidal height and geoidal height represents geoidal undulation.
Rules:
  1. VAL_GEOID_UNDULATION may be specified only if VAL_ELEV has been specified.
Domain: VAL_DIST_VER
UOM_DIST_VER [Unit of measurement [vertical distance]] optional
The unit of measurement for vertical distances: elevation, geoidal undulation.
Domain: UOM_ELEV
VAL_CRC [Cyclic redundancy check] optional
Hexadecimal value of a 32-bit polynominal cyclic redundancy check (CRC) over the values of a selected set of attributes that model critical, essential and routine data, according to ICAO Annex 15, item 3.2.10.
Notes:
Applications implementing the model shall decide and notify the specific attributes which are used for the CRC calculations, taking into consideration the requirements of the ICAO Annex 15.
Domain: VAL_HEX
TXT_VER_DATUM [Vertical Datum] optional
Attribute to take the "Vertical Datum" (viz. the tide gauge to determine MSL - for example, "AMSTERDAM GAUGE", "NEWLYN" etc.).
Domain: TXT_DESCR
TXT_RMK [Remark] optional
Domain: TXT_RMK