Reference Documents: 
  • OMA Chapter 7.5
  • OMA Chapter 17.14.1
  • NOTAC 21E
Concept: Based on DH and RVR

The main objective of CAT II/ CAT III operations is to provide a level of safety equivalent to other operations but in the more adverse weather conditions and associated lower visibility.

ILS CategoryDecision HeightRunway Visual Range
1200550
2100300
3A50175
3BNO75
Regulatory Requirements:
  • Crew Training/Recency— SIM and Online (Practise app OMA 17.4.1.18)
  • Aircraft Certification— MEL
  • Airport Qualification— LVP, Lights and NAV facilities
  • Company Authorised
Approach Requirements:

a) Current RVR: Decide on type of approach

CATTDZMIDEND
2300125125
3A175125125
3B757575

b) Standard Call-outs : Briefing Guide Or OMA 17.4.1.15

c) Visual References: Approach Lights, Touch-down zone lights, Centre line lights, Edge Lights

CAT 1Sufficient of above to be able to maintain
CAT 23 consecutive lights + 1 Lateral Element
CAT 3A3 consecutive lights
CATBNO visual reference required or 1 centre line light for DH

d) Autopilot Disconnection height:

CAT1CAT2CAT3ACAT3B
160’80’Auto landAuto land

e) Automatic landing system;

CAT1CAT2CAT3ACAT3B
N/AN/ACAT3 Single CAT3 DUAL
Fail PassiveFail Operational
Roll Out Not requiredRoll Out required
DH ConceptAlert Height

d) Degradation of Category or failure:

  • Above 1000’— Permitted only if > Briefing done, RVR within limits and ECAM actions completed.
  • Below 1000’— Go Around is Mandatory

e) Failure below 1000’, Go Around is Mandatory for :

  • ECAM caution
  • Category degradation ( Triple Click )

f) CAT 2/3 Equipment required : QRH Ops Data

g) Wind Limitation : OMB Chapter 5 ( 30/20/10)

h) Runway exits identification

i) Lights Outage: OMA 7.5.3