AMC9 SPO.OP.110 Aerodrome
operating minima — aeroplanes and helicopters
EFFECT ON LANDING MINIMA OF TEMPORARILY FAILED OR DOWNGRADED GROUND EQUIPMENT — COMPLEX MOTOR-POWERED AIRCRAFT
(a) General
These instructions are intended for both pre-flight and in-flight use. It is, however, not expected that the pilot-in-command 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 pilot-in-command’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 15 and, if considered necessary, the approach should be abandoned.
(b) Conditions applicable to Table 15:
(1) multiple failures of runway/FATO lights other than those indicated in Table 15 should not be acceptable;
(2) failures of approach and runway/FATO lights are acceptable at the same time, and the most demanding consequence should be applied; and
(3) failures other than ILS or MLS affect the RVR only and not the DH.
Table 15
Failed
or downgraded equipment — effect on landing minima
|
Failed or downgraded equipment |
Effect on landing minima |
|
|
Type B |
Type A |
|
|
Navaid standby transmitter |
No effect |
|
|
Outer marker (ILS only) |
No effect if the required height or glide path can be checked using other means, e.g. DME fix |
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 of descent), NPA operations cannot be conducted |
||
|
Middle marker (ILS only) |
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 |
|
|
Centre line lights |
Aeroplanes:
No effect if flight director (F/D), HUDLS or auto-land; Helicopters: No effect on CAT I and SA CAT I approach operations. |
No effect |
|
Centre line lights spacing increased to 30 m |
No effect |
|
|
TDZ lights |
Aeroplanes:
No effect if F/D, HUDLS or auto-land; Helicopters: No effect. |
No effect |
|
Taxiway lighting system |
No effect |
|
EASA regulations detail how temporarily failed or downgraded aerodrome ground equipment impacts landing minima for complex aircraft. Pilots must consider equipment failures announced before 1000ft above the aerodrome. Specific light failures affect visibility requirements (RVR), while others have no impact, especially with advanced flight systems. Multiple failures are generally unacceptable.
* Summary by Aviation.Bot - Always consult the original document for the most accurate information.
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