CS ADR-DSN.H.445 Obstacle-free zone (OFZ)

(a)An OFZ is intended to protect aeroplanes from fixed and mobile obstacles during Category II and III operations when approaches are continued below decision height, and during any subsequent missed approach or balked landing with all engines operating normally. It is not intended to supplant the requirement of other surfaces or areas where these are more demanding.

(b)The OFZ is made up of the following obstacle limitation surfaces:

(1)inner approach surface;

(2)inner transitional surfaces; and

(3)balked landing surface.

[Issue: ADR-DSN/3]