Flight Phase Taxonomy

Definition

The ADREP Flight Phase taxonomy is a set of terms used by ICAO to categorize the operational phase during which an aircraft accident and incident happened and to allow safety trend analysis on occurrences by this category. The ADREP Flight Phase taxonomy is part of the ICAO accident data reporting system (ADREP).

Terms

For the purposes of this taxonomy, phase of flight refers to a period within a flight. A flight begins when any person boards the aircraft with the intention of flight and continues until such time as all such persons have disembarked.
The terms of this taxonomy are grouped into primary and secondary terms. Every occurrence should have associated a primary flight phase and exceptionally only a secondary term.

ADREP flight phase taxonomy terms
PrimaryTermAcronym
StandingSTD
TaxiTXI
TakeoffTOF
Initial climbICL
En routeENR
ManeuveringMNV
ApproachAPR
LandingLDG
SecondaryEmergency descentEMG
Uncontrolled descentUND
Post-impactPIM
Pushback/towingPBT
UnknownUNK

Relations with other taxonomies

IATA maintains a taxonomy for flight phases. The terms used inside that taxonomy can be mapped to the terms of the ADREP flight phase taxonomy.
Multiple categories of one taxonomy sometimes match one category of the other taxonomy, but still allow comparison. The ADREP term maneuvering is unmatched as this mostly concerns non-commercial flights.

ADREP and IATA flight phase taxonomy terms compared
ADREP TermIATA Term
StandingFlight Planning
Pre-flight
Engine Start / Depart
TaxiTaxi-out
TakeoffTake-off
Rejected take-off
Initial climbInitial Climb
En routeEn Route Climb
Cruise
Descent
ApproachApproach
Go-around
LandingLanding
TaxiTaxi-in
StandingArrival / Engine Shutdown
Post-flight
Flight Close
Ground Services

 

Rules

No rules are currently attached to this taxonomy.

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Further Reading

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