Table of Contents
What is a Category 3 landing?
A category III A approach is a precision instrument approach and landing with no decision height or a decision height lower than 100ft (30m) and a runway visual range not less than 700ft (200m).
Do pilots land with ILS?
The use of ILS is at the discretion of pilots with ATC permission. The ILS localiser and glideslope can still be used as a reference during the visual approach (even if the landing is not ILS). The decision is the pilots’ as the visual indicators and glideslope may not match.
What do pilots announce when landing?
To indicate the landing clearance or final approach, the Captain will either make the following announcement and/or blink the No Smoking sign. “Flight attendants, prepare for landing please.” “Cabin crew, please take your seats for landing.” It may be followed by an announcement by a flight attendant.
What is ILS cat3?
What is the difference between land 2 and land 3?
Land 3 is annunciated for Fail-Operational mode and Land 2 for Fail-Passive, for three A/P systems. No Autoland obviously indicates a fault which precludes the use of A/Ps for automatic landing.
Why do pilots use ILS?
In aviation, the instrument landing system (ILS) is a radio navigation system that provides short-range guidance to aircraft to allow them to approach a runway at night or in bad weather. The pilot attempts to maneuver the aircraft to keep these indicators centered while they approach the runway to the decision height.
Is middle marker mandatory for ILS approaches?
The FAF on CAT I/II/III ILS approach operations is the published glideslope intercept altitude, not the OM. Therefore, an OM or suitable substitute is not required for CAT I/II/III ILS approach operations. Middle Marker (MM) beacons are not required for CAT I/II/III ILS.
When do pilots have to inform ATC when descending via?
Pilots cleared for vertical navigation using the phraseology “descend via” must inform ATC upon initial contact with a new frequency, of the altitude leaving, “descending via (procedure name),” the runway transition or landing direction if assigned, and any assigned restrictions not published on the procedure.
When do pilots report to ATC for two-way communications failure?
Pilots should report to ATC the time and altitude/flight level at which the aircraft reaches the clearance limit and report leaving the clearance limit. In the event of two-way communications failure, pilots are required to comply with 14 CFR Section 91.185.
Can fail operational landing systems be used for CAT III operations?
2) Fail operational operations usually use an alert height (AH) instead of a DH (see AC 120-28). Fail operational landing systems can be used for CAT IIIa operations. Fail operational landing systems can also be used in CAT IIIb operations if these systems have at least a fail passive rollout control capability.
When is the loss of CAT III capability not permitted?
In other words, the loss of CAT III capability is not permitted when the aircraft is in the critical phases of approach and landing (below 100 feet AGL).