CifpHeliportMsa

Minimum Safe Altitude (MSA) sectors associated with heliports, defining safe altitudes within specified radii and bearing sectors around a center navaid or fix

Source: CIFPTable: CIFP_HELIPORT_MSAVersion: 239462ba9c35 (effective 2026-04-16)

Each record can contain up to 7 MSA sectors (bearing/altitude/radius triplets). The SECTOR_BEARING field encodes both the from-bearing and to-bearing as a 6-digit string (e.g., '180180' means 000-360 omnidirectional). Altitudes are stored in hundreds of feet MSL (e.g., '029' = 2900 feet MSL).

Example query

# Introspect the CifpHeliportMsa type in GraphiQL at https://api.nav.sortie.co/graphql
# Example shape (pair with a compatible root query field):
{
  # ...rootQuery... {
    recordType
    customerAreaCode
    sectionCode
    heliportIdentifier
  # }
}

Run at https://api.nav.sortie.co/graphql — GraphiQL is available in-browser.

Fields (34)

Field	Type	Description	Units	Enum
recordType ← RECORD_TYPE	RecordType	ARINC 424 record type indicator; 'S' denotes a standard record		S — Standard record
customerAreaCode ← CUSTOMER_AREA_CODE	CifpHeliportApproachCustomerAreaCode	Geographic area code identifying the region of the world for the data; 'USA' indicates United States		USA — United States of America
sectionCode ← SECTION_CODE	CifpHeliportMsaSectionCode	ARINC 424 section code identifying the data category; 'HS' denotes Heliport records		HS — Heliport
heliportIdentifier ← HELIPORT_IDENTIFIER	HeliportIdentifier	ICAO or FAA identifier of the heliport to which this MSA record belongs		6N5 — Greenwood Lake Airport (heliport) 87N — Princeton Airport (heliport) KJRA — West 30th St. Heliport KJRB — Downtown Manhattan/Wall St. Heliport
icaoCode ← ICAO_CODE	CifpHeliportMsaIcaoCode	ICAO region code for the heliport identifier; 'K6' denotes contiguous US region		K6 — Contiguous United States (ICAO region)
msaCenter ← MSA_CENTER	MsaCenter	Identifier of the navaid or fix used as the center point for the MSA calculation		CRAN — CRAN navaid/fix HUDS — HUDS navaid/fix JORB — JORB navaid/fix
icaoCode2 ← ICAO_CODE_2	CifpHeliportMsaIcaoCode	ICAO region code associated with the MSA center navaid or fix		K6 — Contiguous United States (ICAO region)
sectionCode2 ← SECTION_CODE_2	CifpHeliportMsaSectionCode2	ARINC 424 section code identifying the type of the MSA center fix/navaid; indicates which database table contains the center point		EA — Enroute Waypoint HC — Heliport Terminal Waypoint
multipleCode ← MULTIPLE_CODE	String	Multiple code used to differentiate records when more than one MSA exists for the same heliport and center fix combination; null if only one record exists
continuationRecordNo ← CONTINUATION_RECORD_NO	CifpHeliportMsaContinuationRecordNo	Continuation record number; '0' indicates the primary record, values '1' and above indicate continuation records with additional data		0 — Primary record 1 — First continuation record
sectorBearing ← SECTOR_BEARING	String	Encoded bearing limits for the first MSA sector as a 6-digit string combining the from-bearing (first 3 digits) and to-bearing (last 3 digits) in degrees magnetic or true; '180180' encodes a full 360-degree omnidirectional sector	degrees
sectorAltitude ← SECTOR_ALTITUDE	SectorAltitude	Minimum safe altitude for the first MSA sector, stored in hundreds of feet MSL (e.g., '029' = 2900 feet MSL)	hundreds of feet MSL	019 — 1900 feet MSL 029 — 2900 feet MSL
sectorRadius ← SECTOR_RADIUS	String	Radius of the first MSA sector measured from the MSA center point	nautical miles
sectorBearing2 ← SECTOR_BEARING_2	String	Encoded bearing limits for the second MSA sector as a 6-digit string combining from-bearing and to-bearing; null if fewer than 2 sectors are defined	degrees
sectorAltitude2 ← SECTOR_ALTITUDE_2	String	Minimum safe altitude for the second MSA sector in hundreds of feet MSL; null if fewer than 2 sectors are defined	hundreds of feet MSL
sectorRadius2 ← SECTOR_RADIUS_2	String	Radius of the second MSA sector from the MSA center point; null if fewer than 2 sectors are defined	nautical miles
sectorBearing3 ← SECTOR_BEARING_3	String	Encoded bearing limits for the third MSA sector as a 6-digit string combining from-bearing and to-bearing; null if fewer than 3 sectors are defined	degrees
sectorAltitude3 ← SECTOR_ALTITUDE_3	String	Minimum safe altitude for the third MSA sector in hundreds of feet MSL; null if fewer than 3 sectors are defined	hundreds of feet MSL
sectorRadius3 ← SECTOR_RADIUS_3	String	Radius of the third MSA sector from the MSA center point; null if fewer than 3 sectors are defined	nautical miles
sectorBearing4 ← SECTOR_BEARING_4	String	Encoded bearing limits for the fourth MSA sector as a 6-digit string combining from-bearing and to-bearing; null if fewer than 4 sectors are defined	degrees
sectorAltitude4 ← SECTOR_ALTITUDE_4	String	Minimum safe altitude for the fourth MSA sector in hundreds of feet MSL; null if fewer than 4 sectors are defined	hundreds of feet MSL
sectorRadius4 ← SECTOR_RADIUS_4	String	Radius of the fourth MSA sector from the MSA center point; null if fewer than 4 sectors are defined	nautical miles
sectorBearing5 ← SECTOR_BEARING_5	String	Encoded bearing limits for the fifth MSA sector as a 6-digit string combining from-bearing and to-bearing; null if fewer than 5 sectors are defined	degrees
sectorAltitude5 ← SECTOR_ALTITUDE_5	String	Minimum safe altitude for the fifth MSA sector in hundreds of feet MSL; null if fewer than 5 sectors are defined	hundreds of feet MSL
sectorRadius5 ← SECTOR_RADIUS_5	String	Radius of the fifth MSA sector from the MSA center point; null if fewer than 5 sectors are defined	nautical miles
sectorBearing6 ← SECTOR_BEARING_6	String	Encoded bearing limits for the sixth MSA sector as a 6-digit string combining from-bearing and to-bearing; null if fewer than 6 sectors are defined	degrees
sectorAltitude6 ← SECTOR_ALTITUDE_6	String	Minimum safe altitude for the sixth MSA sector in hundreds of feet MSL; null if fewer than 6 sectors are defined	hundreds of feet MSL
sectorRadius6 ← SECTOR_RADIUS_6	String	Radius of the sixth MSA sector from the MSA center point; null if fewer than 6 sectors are defined	nautical miles
sectorBearing7 ← SECTOR_BEARING_7	String	Encoded bearing limits for the seventh MSA sector as a 6-digit string combining from-bearing and to-bearing; null if fewer than 7 sectors are defined	degrees
sectorAltitude7 ← SECTOR_ALTITUDE_7	String	Minimum safe altitude for the seventh MSA sector in hundreds of feet MSL; null if fewer than 7 sectors are defined	hundreds of feet MSL
sectorRadius7 ← SECTOR_RADIUS_7	String	Radius of the seventh MSA sector from the MSA center point; null if fewer than 7 sectors are defined	nautical miles
magneticTrueBearing ← MAGNETIC_TRUE_BEARING	MagneticTrueIndicator	Indicates whether the sector bearings are referenced to magnetic north or true north		M — Magnetic north T — True north
fileRecordNo ← FILE_RECORD_NO	String	Sequential file record number assigned to this record within the ARINC 424 data file; used for internal tracking and reference
cycleDate ← CYCLE_DATE	CifpHeliportMsaCycleDate	AIRAC cycle date indicating when this record was last updated, in YYMM format (e.g., '2502' = 2025 cycle 02)		1505 — AIRAC cycle 2015-05 1807 — AIRAC cycle 2018-07 2502 — AIRAC cycle 2025-02