AMC11 CAT.OP.MPA.110 Aerodrome operating minima
CAA ORS9 Decision No. 1
EFFECT ON LANDING MINIMA OF TEMPORARILY FAILED OR DOWNGRADED GROUND EQUIPMENT
(a) General
These instructions are intended for use both pre-flight and in-flight. It is, however, not expected that the commander would consult such instructions after passing 1 000 ft above the aerodrome. If failures of ground aids are announced at such a late stage, the approach could be continued at the commander’s discretion. If failures are announced before such a late stage in the approach, their effect on the approach should be considered as described in Table 9, and the approach may have to be abandoned.
(b) Conditions applicable to Table 9:
(1) multiple failures of runway/FATO lights other than indicated in Table 9 should not be acceptable;
(2) deficiencies of approach and runway/FATO lights are treated separately; and
(3) failures other than ILS, MLS affect RVR only and not DH.
Table 9
Failed or downgraded equipment — effect on landing minima Operations without a low visibility operations (LVO) approval
|
Failed or downgraded equipment |
Effect on landing minima |
|
|---|---|---|
|
CAT I |
APV, NPA |
|
|
ILS/MLS stand-bytransmitter |
No effect |
|
|
Outer Marker |
Not allowed except if replaced by height check at 1 000 ft |
APV — not applicable |
|
NPA with FAF: no effect unless used as FAF |
||
|
If the FAF cannot be identified (e.g. no method available for timing ofdescent), non-precision operations cannot be conducted |
||
|
Middle marker |
No effect |
No effect unless used as MAPt |
|
RVR Assessment Systems |
No effect |
|
|
Approach lights |
Minima as for NALS |
|
|
Approach lights except the last 210 m |
Minima as for BALS |
|
|
Approach lights except the last 420 m |
Minima as for IALS |
|
|
Standby power for approach lights |
No effect |
|
|
Edge lights, threshold lights and runway end lights |
Day: no effect; Night: not allowed |
|
|
Centreline lights |
No effect if F/D, HUDLS or auto-land otherwise RVR 750 m |
No effect |
|
Centreline lights spacing increased to 30 m |
No effect |
|
|
Touchdown zone lights |
No effect if F/D, HUDLS or auto-land; otherwise RVR 750 m |
No effect |
|
Taxiway lighting system |
No effect |
|