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Norfolk Island Non Directional Beacon (NDB) Range Reduction
Consultation has concluded
Airservices is seeking industry feedback on our proposal to reduce the height and range of operation of the Norfolk Island Non Directional Beacon (NDB).
Background:
Norfolk Island has both NDB and VOR/DME navigational aids, which are currently part of the Australian Backup Navigation Network (BNN) and provide non-precision approach capabilities to the runways at Norfolk Island airport. In addition to the NDB and VOR-DME non-precision approaches, Norfolk Island also has four RNAV-Y (GNSS) procedures and two RNAV-X (RNP-AR) procedures.
The position of the NDB masts at Norfolk Island exposes them to an extreme amount of ocean spray, which has caused a significant amount of corrosion to the masts, despite them being only 17 years old. The NDB masts are now in a very poor condition and considered unsafe for maintenance staff and public therefore immediate repairs are required.
Airservices is proposing to remove the corroded upper sections of the masts, reducing the height of them from 47m to 19m above ground level. Based on Airservices engineering assessments, this height reduction will have a corresponding reduction to the currently published range of the NDB as detailed below:
Current NDB range as per ERSA is OW 300 (HN 120).
Anticipated future range of not below OW 50 (HN 50).
Request for Industry Feedback:
Airservices is seeking industry feedback to understand if the proposed reduction in rated coverage from the NDB will create any issues for aircraft operators flying into or out of Norfolk Island airport. Airservices invites you to provide feedback using the survey form, found at the bottom of this page. This survey will close 15 September 2021.
Airservices is seeking industry feedback on our proposal to reduce the height and range of operation of the Norfolk Island Non Directional Beacon (NDB).
Background:
Norfolk Island has both NDB and VOR/DME navigational aids, which are currently part of the Australian Backup Navigation Network (BNN) and provide non-precision approach capabilities to the runways at Norfolk Island airport. In addition to the NDB and VOR-DME non-precision approaches, Norfolk Island also has four RNAV-Y (GNSS) procedures and two RNAV-X (RNP-AR) procedures.
The position of the NDB masts at Norfolk Island exposes them to an extreme amount of ocean spray, which has caused a significant amount of corrosion to the masts, despite them being only 17 years old. The NDB masts are now in a very poor condition and considered unsafe for maintenance staff and public therefore immediate repairs are required.
Airservices is proposing to remove the corroded upper sections of the masts, reducing the height of them from 47m to 19m above ground level. Based on Airservices engineering assessments, this height reduction will have a corresponding reduction to the currently published range of the NDB as detailed below:
Current NDB range as per ERSA is OW 300 (HN 120).
Anticipated future range of not below OW 50 (HN 50).
Request for Industry Feedback:
Airservices is seeking industry feedback to understand if the proposed reduction in rated coverage from the NDB will create any issues for aircraft operators flying into or out of Norfolk Island airport. Airservices invites you to provide feedback using the survey form, found at the bottom of this page. This survey will close 15 September 2021.
Airservices is seeking industry feedback via the following survey to understand if there is any operational impact with the reduction of rated coverage for the Norfolk Island NDB before a decision for its reduction can be made.
