Publication: Magyar Közlöny
Issue: MK-2009-104 (Year: 2009, Number: 104)
Era: 2004-2010
Section: 
Paragraph Index: 2576

d) either: 1) i) the current RA is altitude crossing; and ii) current altitude separation is at least 61 m (200 ft), or 30 m (100 ft) if more than 10 s remain before closest approach; and iii) either — at the time the RA was generated the threat was predicted to cross the initial altitude of own aircraft, but currently the threat’s altitude at closest approach is predicted to be above or below the current altitude of own aircraft in the case of a climb or descend RA, respectively; or — at the time the RA was generated the threat was not predicted to cross the initial altitude of own aircraft, but current estimates of the separations predicted to be achievable for climb and descend RAs at closest approach show that greater separation will be obtained for a reversed sense RA; and iv) by the time of reaching closest approach, own aircraft will, with reversed sense, be able to exceed the maximum bound on the threat’s altitude at closest approach (projected using the maximum altitude rate bound (4.1.2.3.4)); or 2) i) the current RA is not altitude crossing; and ii) at least one of the following: — the threat has crossed own aircraft’s altitude by at least 30 m (100 ft) in the direction of the RA sense; or — the threat is not equipped and own aircraft has not yet crossed the altitude of the threat, but its vertical rate is opposite to the RA and an immediate manoeuvre to comply with the RA would not prevent an altitude crossing before closest approach; or Annex 10 — Aeronautical Communications Volume IV 22/11/07 ATT-54 — the threat is not equipped and current separation does not exceed Ac (4.4.2.1.4), the vertical rates of own and the threat exceed 1 000 ft/min in the same direction, the RA has been positive for at least 9 s, confidence in the tracked rate of the threat is high, and either an altitude crossing is predicted to occur before closest approach or vertical separation at closest approach is predicted to be less than 30 m (100 ft). Note.— The sense of an RA for an established threat cannot be reversed except for coordination purposes or because the predicted separation at closest approach for the existing sense is inadequate (Chapter 4, 4.3.5.5). 4.4.4.3.1 Climb RAs occurring as a result of reversals of downward-sense RAs are issued regardless of manoeuvre limitation indications. 4.4.4.4 Strength selection for non-crossing RAs against ACAS-equipped threats. In a conflict with an ACAS-equipped threat, in which the reference logic would normally generate a non-crossing climb or descend RA that is opposite in direction to own aircraft’s existing vertical rate, an RA to limit the vertical rate to 0 ft/min will be generated instead, if the following conditions are met:

Source: https://magyarkozlony.hu/hivatalos-lapok/1f7c6b0e16b4b71a92e5ad24416008bbe2e26aab/dokumentumok/710811d1f7f958a2990684d0cbf918e84f5497e5/letoltes