CASA 146/08 – Determination of meteorological minima (Cth)

Instrument number CASA 146/08

I, William Bruce Byron, Director of Aviation Safety, on behalf of CASA, make this instrument under subregulation 257 (1) of the Civil Aviation Regulations 1988.

[Signed Bruce Byron]

Bruce Byron
Director of Aviation Safety and
   Chief Executive Officer

2 April 2008

Determination of meteorological minima

1          Revocation

            Instrument CASA 477/03 is revoked.

2          Commencement

            This instrument commences the day after it is registered.

3          Determination

   (1)     The standard meteorological minima for aeroplanes taking off are as determined in Schedule 1.

   (2)     The standard meteorological minima for multi-engine helicopters taking off are as determined in Schedule 2.

   (3)     The meteorological minima for aircraft landing are:

(a)   for aerodromes with an approved instrument approach procedure — the minima specified in the instrument approach chart for carrying out that procedure, being:

             (i)  a decision height (DH) of not less than 200 feet and visibility of not less than 800 metres; or

            (ii)  a DH of not less than 200 feet and a Runway Visual Range (RVR) of not less than 550 metres in the touchdown zone (TDZ), where the RVR is obtained from electronic measurement using instruments approved by the Bureau of Meteorology; or

(b)   for other aerodromes:

             (i)  in the case of day IFR — visual approach requirements; and

            (ii)  in the case of night IFR — VMC from the lowest safe altitude within 3 nautical miles.

   (4)     The meteorological minima for aircraft taking off or landing are subject to specific minima set out in aerodrome charts issued for individual aerodromes.

Schedule 1          Minima for aeroplanes taking off

Aeroplanes	Ceiling	Visibility
Multi-engined aeroplanes: (a)   two pilot operated; or (b)   single pilot operated multi-engine turbo-jets or (operative) auto‑feather equipped. IFR aeroplanes above 5 700 kg        With runway edge lighting (light spacing not more than 60 metres) and either runway centreline lighting or centreline marking.	0 0	800 metres 500 metres
Multi-engined aeroplanes: (a)   two pilot operated; or (b)   single pilot operated turbo-jets or (operative) auto-feather equipped. IFR aeroplanes not above 5 700 kg, capable of a gross climb gradient of at least 1.9% under ambient conditions with the loss of the most critical engine        With runway edge lighting (light spacing not more than 60 metres) and either runway centreline lighting or centreline marking.	0 0	800 metres 500 metres
All other IFR aeroplanes	300 feet	2 000 metres

Schedule 2          Minima for multi-engine helicopters taking off

Helicopters	Cloud/ceiling	RVR/Vis
Multi-engined helicopters when operated in accordance with PC1/PC2 procedures When operated from a runway with edge lighting at not more than 60 metres light spacing and either runway centreline lighting or centreline marking.	Clear of cloud until attaining Vyse or Vmin IMC (whichever is the greater)	800 metres 500 metres
All other IFR helicopters	500 feet	800 metres