CAAP Flight Dispatcher study materials
CAAP Flight Dispatcher study resources

CAAP Flight Dispatcher key terms

CAAP Flight Dispatcher · Get comfortable with the vocabulary.

Air Operator Certificate (AOC)

A certificate issued by the Civil Aviation Authority of the Philippines authorizing an operator to conduct commercial air transport operations, specifying the types of aircraft and kinds of operations permitted.

Related: Operations Specifications, Philippine Civil Aviation Regulations (PCAR)
Operations Specifications (OpsSpecs)

The document attached to an AOC that lists specific authorizations, limitations, and conditions such as routes, aerodromes, approaches, and special procedures an operator may use.

Related: Air Operator Certificate (AOC), Minimum Equipment List (MEL)
Philippine Civil Aviation Regulations (PCAR)

The national regulatory framework issued by the Civil Aviation Authority of the Philippines, largely aligned with ICAO Annexes, governing licensing, operations, airworthiness, and air traffic services.

Related: ICAO Annex 6, Air Operator Certificate (AOC)
ICAO Annex 6

The international standard covering operation of aircraft, setting requirements for flight operations, crew, fuel, instruments, and record keeping for commercial air transport.

Related: Philippine Civil Aviation Regulations (PCAR), Flight Time Limitations
Flight Time Limitations (FTL)

Regulatory limits on how many hours a crew member may fly and be on duty within defined periods, intended to control fatigue and preserve safe performance.

Related: Duty Period, Circadian Rhythm
Duty Period

The elapsed time from when a crew member reports for duty to when they are released from it, including flying and ground duties but excluding rest.

Related: Flight Time Limitations (FTL), Rest Period
Rest Period

An uninterrupted block of time free of all duty during which a crew member may sleep and recover before the next duty period.

Related: Duty Period, Circadian Rhythm
Operational Flight Plan

A document prepared for a specific flight listing route, altitudes, fuel, weights, alternates, and expected conditions, used by the crew and retained for operational control.

Related: Fuel Policy, Alternate Aerodrome
Alternate Aerodrome

An aerodrome to which an aircraft may proceed if landing at the intended destination becomes impossible or inadvisable, requiring adequate weather and runway suitability.

Related: Operational Flight Plan, Contingency Fuel
Equal Time Point (ETP)

The point along a route where the time needed to reach either of two diversion aerodromes is the same, used for planning diversions on long overwater sectors.

Related: Point of No Return (PNR), Drift Down
Point of No Return (PNR)

The furthest point along a route from which an aircraft can still return to its departure aerodrome with the fuel remaining, after which continuation is the only option.

Related: Equal Time Point (ETP), Contingency Fuel
Fuel Policy

The operator's approved method for calculating fuel uplift, defining taxi, trip, contingency, alternate, final reserve, and additional fuel components for each flight.

Related: Final Reserve Fuel, Contingency Fuel
Final Reserve Fuel

The minimum fuel that must remain on landing, typically 30 minutes of holding at 1,500 feet above the alternate, protecting against unforeseen delays.

Related: Fuel Policy, Contingency Fuel
Contingency Fuel

Fuel carried to cover unplanned deviations such as weather, routing, or traffic delays, usually a percentage of trip fuel or a time-based allowance.

Related: Final Reserve Fuel, Fuel Policy
Zero Fuel Weight (ZFW)

The total weight of the aircraft and its contents excluding usable fuel, used as a limiting structural weight for planning payload.

Related: Maximum Takeoff Weight (MTOW), Center of Gravity (CG)
Maximum Takeoff Weight (MTOW)

The highest weight at which an aircraft is certified to begin the takeoff roll, limited by structure, runway length, climb performance, or obstacle clearance.

Related: Zero Fuel Weight (ZFW), Balanced Field Length
Center of Gravity (CG)

The point where the aircraft's total weight is considered concentrated, which must stay within a certified forward and aft range for control and performance.

Related: Zero Fuel Weight (ZFW), Load Sheet
Load Sheet

A document showing the distribution of traffic load, total weights, and the resulting center of gravity position, signed before departure as a loading record.

Related: Center of Gravity (CG), Zero Fuel Weight (ZFW)
Balanced Field Length

The runway length at which the accelerate-stop distance equals the accelerate-go distance, giving the greatest allowable takeoff weight for a runway.

Related: Maximum Takeoff Weight (MTOW), V1
V1

The decision speed at which a failure is recognized and the takeoff can either be safely continued or safely stopped on the remaining runway.

Related: Balanced Field Length, V2
V2

The takeoff safety speed that must be maintained to at least 35 feet above the runway end with one engine inoperative, ensuring minimum climb gradient.

Related: V1, Drift Down
Drift Down

A descent to a lower altitude after an engine failure at high altitude, where the aircraft can maintain level flight on remaining thrust until a suitable diversion.

Related: V2, Equal Time Point (ETP)
METAR

A routine coded observation of surface weather at an aerodrome, reporting wind, visibility, cloud, temperature, dew point, and pressure at a stated time.

Related: TAF, SPECI
TAF

A forecast of expected aerodrome weather covering a stated period, used to judge whether destination and alternate weather will meet planning minima.

Related: METAR, Alternate Aerodrome
SPECI

A special aerodrome weather report issued when conditions change significantly and meet specified criteria, such as a sudden drop in visibility or ceiling.

Related: METAR, TAF
Low-Level Wind Shear

A sudden change in wind speed or direction over a short distance, often near thunderstorms or frontal zones, that can cause large airspeed changes on approach.

Related: Microburst, Microburst Alert
Microburst

A localized downdraft producing a strong outflow at the surface, creating a headwind then tailwind shift that can cause severe performance loss on approach.

Related: Low-Level Wind Shear, Microburst Alert
Microburst Alert

A warning issued by low-level wind shear alerting systems when a microburst is detected, advising pilots of hazardous wind conditions near the aerodrome.

Related: Microburst, Low-Level Wind Shear
Instrument Landing System (ILS)

A precision approach aid providing lateral guidance from a localizer and vertical guidance from a glide path, allowing approaches to low decision heights.

Related: Decision Altitude (DA), Minimum Descent Altitude (MDA)
Decision Altitude (DA)

The altitude on a precision approach at which a missed approach must be initiated if the required visual reference has not been established.

Related: Instrument Landing System (ILS), Minimum Descent Altitude (MDA)
Minimum Descent Altitude (MDA)

The lowest altitude on a non-precision approach to which descent may continue without the required visual reference to the runway environment.

Related: Decision Altitude (DA), Instrument Landing System (ILS)
Reduced Vertical Separation Minimum (RVSM)

An airspace designation permitting 1,000-foot vertical spacing between aircraft above a set altitude, requiring approved altimetry and autopilot equipment.

Related: Altimeter Setting, Required Navigation Performance (RNP)
Required Navigation Performance (RNP)

A navigation specification stating the accuracy an aircraft must maintain within a defined airspace, with onboard performance monitoring and alerting required.

Related: Reduced Vertical Separation Minimum (RVSM), Area Navigation (RNAV)
Minimum Equipment List (MEL)

An approved document listing instruments and equipment that may be inoperative while still allowing dispatch, subject to stated conditions and repair intervals.

Related: Configuration Deviation List (CDL), Operations Specifications (OpsSpecs)
Dangerous Goods Declaration

A document completed by the shipper certifying that a consignment has been classified, packed, marked, and labeled in accordance with applicable dangerous goods regulations.

Related: Shipper's Declaration, UN Number
UN Number

A four-digit identification code assigned to a specific dangerous good or group of goods, used to look up handling, packing, and emergency response information.

Related: Dangerous Goods Declaration, Shipper's Declaration
Shipper's Declaration

The signed statement from the consignor that accompanies a dangerous goods shipment, providing identification, class, quantity, and packing details for acceptance checks.

Related: Dangerous Goods Declaration, UN Number
Crew Resource Management (CRM)

Training and practice that develops effective use of all available resources, including crew, equipment, and information, to improve safety and decision making.

Related: Situational Awareness, Threat and Error Management (TEM)
Threat and Error Management (TEM)

A framework for recognizing threats to a flight, trapping errors before they escalate, and managing any undesired aircraft state that results.

Related: Crew Resource Management (CRM), Situational Awareness
Situational Awareness

A crew's accurate perception and understanding of what is happening around the aircraft, including position, weather, traffic, and system status.

Related: Crew Resource Management (CRM), Threat and Error Management (TEM)
Circadian Rhythm

The body's internal roughly 24-hour cycle regulating sleep and alertness, which is disrupted by crossing time zones and by night flying.

Related: Flight Time Limitations (FTL), Duty Period
Safety Management System (SMS)

A structured set of processes for identifying hazards, assessing and mitigating risk, and assuring safety performance within an aviation organization.

Related: Just Culture, Threat and Error Management (TEM)
Just Culture

A safety approach that encourages reporting of errors without fear of punishment while still holding people accountable for reckless or intentional acts.

Related: Safety Management System (SMS), Crew Resource Management (CRM)
Altimeter Setting

The pressure value set on the altimeter subscale so that the instrument indicates the correct altitude or flight level for the phase of flight.

Related: Transition Altitude, Reduced Vertical Separation Minimum (RVSM)
Transition Altitude

The altitude above which a pilot sets the standard pressure reference and reports flight levels instead of altitudes, varying by aerodrome or region.

Related: Altimeter Setting, Reduced Vertical Separation Minimum (RVSM)