What is this? Flashcards
What does “NAT HLA” mean?
North Atlantic High Level Airspace (Previously MNPS)
What does “EDTO” mean?
Extended Diversion Time Operations
In accordance with International Civil Aviation Organization (ICAO) Annex 6 Part I, such requirement is renamed as Extended Diversion Time Operations (EDTO) and is expanded to include the operation of aeroplanes with three and four engines
What does “ETOPS” mean?
Extended Range Twin Operations
(ETOPS) enable properly certificated twin-engined aeroplanes operated by appropriately qualified flight crew to fly further than a threshold time of 60 minutes at One Engine Inoperative (OEI) cruise speed.
What does “OOOI” mean?
Out, Off, On and In
Out – The out of gate (or “off blocks”) time when the aircraft leaves the gate. This is usually logged when the sensors record the last door closed (either cabin door or cargo hold) and parking brake released. Off – The time of take-off. This time is triggered by “weight off wheels” sensors that are triggered when the aircraft leaves the runway. On – The on time is the landing time, and is recorded by “weight on wheels” when the aircraft touches down. In – The in time is the time of arrival at the gate. The in time is triggered when the parking brake is set and the engines are shut down.
What does “MNPS” mean?
Minimum Navigation Performance Specifications (now NAT HLA)
In certain geographical areas (e.g. the North Atlantic, the northern portion of Canada) it is a requirement that aircraft carry navigational equipment which permits an enhanced degree of accuracy, especially as regards tracking. To this end, equipment redundancy (two independent long range navigation systems) may be legislated to provide for the failure case.
The prescribed minimum navigation performance specifications (MNPS) and the procedures governing their application are published in the Regional Supplementary Procedures (ICAO Doc 7030) as well as in national Aeronautical Information Publications (AIPs).
What does “RNP” mean?
Required Navigation Performance
Required Navigation Performance (RNP) is a family of navigation specifications under Performance Based Navigation (PBN) which permit the operation of aircraft along a precise flight path with a high level of accuracy and the ability to determine aircraft position with both accuracy and integrity
What does “PBCS” mean?
Performance-based Communication and Surveillance (PBCS) Monitoring
(PBCS) is the combination of the criteria of Performance Based Communication (PBC) and Performance Based Surveillance (PBS). These terms refer to communication and surveillance based on performance specifications applied to the provision of air traffic services.
What does “OCA” mean?
Oceanic Control Area
What does “OTS” mean?
Organised Track Systems
What is a Terminal Airport?
An Airport where an INCREASE of FUEL CONSUMPTION is EXPECTED (holding or extra taxi), due to traffic, runway unavailability during snow removal or de-icing performed at a remote position for instance.
Definition of DAMP runway
A runway is considered as damp, when the surface of the runway is not dry, but the water on the surface does not cause a shiny appearance.
Definition of WET runway
A runway is considered as wet, when the surface of the runway has a shiny appearance due to a thin film of water. When this film does not exceed 3 mm, there is no significant danger of hydroplaning.
Definition of FROST
The deposit of ice crystals on the runway is referred to as frost. The direct sublimation of humidity contained in the air on a runway, when the surface temperature is below freezing, causes frost
Definition of COMPACTED SNOW
The maintenance personnel use a snow groomer to compress snow on a runway in order to obtain a hard surface
Definition of SLIPPERY WET
Notice to Airmen (NOTAM) report a runway as “slippery wet”, when the runway partially or entirely fails to satisfy the minimum (regulatory) friction requirement of the responsible authority
