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Sondrestrom APP

Sondrestrom Approach (BGSF_APP) provides an approach control service within the Sondrestrom TMA and CTA.

Sondrestrom TMA & CTA

The Sondrestrom TMA and CTA together make up the airspace controlled by Sondrestrom Approach.

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The CTA and TMA are arranged as three sections of cylindrical airspace.

  • The CTA (6500ft – FL195) is the largest cylinder of airspace.
  • TMA A (3500 – 6500ft), the main portion of the TMA, forms a smaller cylinder beneath the CTA.
  • TMA B (2000 – 3500ft) is a small cylindrical segment, extending the TMA downwards to encompass the RWY 09 approach path. It directly underlies TMA A.

Arrivals

Runway 09

There are no STARs into BGSF. Aircraft generally join the instrument approach procedures directly from their flight plan route.

The RNP approach for RWY 09 is the preferred approach type. Aircraft should be routed to either of the IAFs (DODIP or BELZI) and descended to the initial approach altitudes as follows:

  • DODIP: 5200ft
  • BELZI: 4900ft

Other approaches available include the LOC and NDB approaches.

  • There are two published LOC approaches – LOC Z (for category A and B aircraft) and LOC Y (for category C and D aircraft.) They are both teardrop procedures, starting from SF NDB and making a left loop to line up with the localizer.
  • There are, similarly two NDB approaches – NDB Z (for category A and B) and NDB Y (for category C and D.) They are also teardrop procedures, except instead of using the localizer, aircraft fly a final approach course towards SF NDB and the runway.

Runway 27

RWY 27 is not used for arrivals except by pilot request. If pilots wish to use RWY 27, though, there are two RNP approaches (RNP A for categories A and B, and RNP B for categories C and D) available which line up with RWY 27.

Aircraft may be cleared direct to the IAFs and descended to the initial approach altitudes as published. Alternatively, aircraft may perform a circle-to-land using any of the Runway 09 approaches.

Circle-to-land is not permitted north of the aerodrome.

Departures

BGSF has no SIDs. As detailed in the Delivery page, aircraft follow a standard departure procedure of climbing on runway track, then passing 5300ft, proceeding direct to join their flight planned route.

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