Glossary Papakupu
Explanations of abbreviations and acronyms.
- Safe place
- A place where people and equipment cannot be struck by passing rail traffic.
- Safe Working Authority (SWA)
- A form used to authorise rail traffic movements not otherwise permitted under the normal system of safe working.
- Safety-critical
- Activities that, if not performed correctly, could lead to serious harm or injury.
- Safety-critical activities
- Activities that, if not performed correctly, could lead to serious harm or injury.
- SAR
- Search and rescue
- Satphone
- A satellite telephone installed on all the operator’s aircraft as the primary means of communication with the OCC.
- Say again
- “Say again” is a standard radio transmission made when one station has not heard or understood a transmission and requests a repeat of the transmission, while “barely readable” is an assessment on the legibility of a transmission.
- Sea Lane
- Regularly used maritime route for vessels
- Secondary protection
- An additional protection method, used in multi-worksite protected work areas.
- Sector
- A sector is one flight from a departure point to a destination point.
- Selcalled
- A function of KiwiRail’s radio system that sends an audible alert and caller identifying information to a train control radio display. When radio traffic is busy, this function allows the train controller to prioritise the order of communication and selectively call back as required.
- Senior person
- The Operations Manual Part A Section 1.1 list the individuals who have been nominated by the operator as Senior persons for specific designated roles, and these must be individually approved by the CAA.
- Service director
- The senior cabin crew person.
- Shackle
- One shackle is a length of anchor chain equal to 27.4 m
- Shoe piece
- A structural member of the stern frame.
- Shunting
- Movement of rail vehicles for formation or positioning of trains
- SID
- Standard Instrument Departure procedure from an aerodrome
- Siding
- Low-speed track section used for loading unloading or passing
- Signals maintainer
- A person qualified in repairing and maintaining railway signaling equipment, including signals and points.
- Signals technician
- A person qualified in repairing and maintaining railway signalling equipment, including signals and points. Of the two technicians referred to in this report, one specialised in signals maintenance while the other was a communications specialist who was assisting the signals technician. For the purposes of this report, both are collectively referred to as signals technicians as that was the nature of the work being performed.
- Simulated flight
- Simulated flight in instrument meteorological conditions by restricting the pilot’s view outside and with a safety pilot for aircraft separation.
- Simulated in flight
- Simulated in flight with a safety pilot present, but without entering instrument meteorological conditions
- Sink
- Sink is the opposite of lift. It is air flowing downwards towards the ground.
- Site Protector (SP)
- The person responsible for all personnel and equipment in a worksite, and who reports to the RPO.
- Situational awareness
- Situational awareness relates to an individual’s understanding of their surroundings. This includes their perception of data from their environment, comprehension of the meaning and significance of the situation, and projection to future states and events.
- Skills
- Skills are activities that have been either learnt or acquired and result in a predictable and often better outcome.
- Skipper Restricted Limits certificate
- Endorsed for up to 24-metre vessels.
- Sky glow
- Effects of solar light present in the sky until the sun is approximately 18 degrees below the horizon.
- Slave latch block
- The latch block to which the handle is attached is considered the master and the other three are termed slaves.
- Sleeper
- Transverse support for rails distributing loads to ballast
- Slot
- Allocated time window for aircraft takeoff or landing
- SMS
- Safety Management System
- SOLAS
- International Convention for the Safety of Life at Sea
- SOP
- Standard Operating Procedure
- Sounding
- Measurement of depth of water or tank liquid level
- SPA
- Specific approvals (European Union)
- Speed boards
- Trackside equipment displaying the maximum speed for that section of track.
- Spidertracks
- A satellite flight data tracking device made by Spidertracks Limited.
- Sprag clutch
- An overrunning sprag clutch automatically disengages the engine from the rotor when the engine RPM is less than the rotor RPM.
- Stand
- Parking position for an aircraft on the apron
- STAR
- standard arrival route
- Starboard
- The right side of the vessel.
- Startle effect
- Defined in SKYbrary as an uncontrollable, automatic reflex that is elicited by exposure to a sudden, intense event that violates a pilot’s expectations. SKYbrary is an international repository of aviation-related information managed by the European Union Aviation Safety Agency (EASA) and Flight Safety Foundation.
- Station
- Fuselage station numbers identify locations fore and aft along an aircraft’s fuselage with the numbers being measured from a reference datum (station zero).
- STC
- A Supplemental Type Certificate (STC) is a Type Certificate issued when an applicant has received approval to modify an aeronautical product from its original design. The STC approves not only the modification but also how that modification affects the original design.
- STC
- Supplemental Type Certificate
- Stern
- The rear of a vessel.
- Stern frame
- A heavy structural member in the stern that supports a ship’s propeller shaft and rudder system.
- Stop drill
- A stop drill hole is drilled at the end of a crack to spread the cracking force around the hole and prevent the crack propagating.
- Stowage Plan
- Plan showing placement of cargo within a ship or aircraft
- Switch
- Mechanism enabling rail vehicles to move from one track to another