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- For other uses, see IATA (disambiguation).
IATA Delay Codes were created to help airlines standardize why a
commercial flight left late from its departure airport.
Previously every airline had its own system, so IATA
standardized the format of transmission of delay information into
these delay codes. These delay codes are used to find out who is
responsible for the delay and who will be penalised. Normally
theses codes are used in movement
messages sent by SITA Telex from the Departure airport to the
Destination airport.
An aircraft on ground costs money,
therefore airlines make an effort to minimize ground time. Very often, airlines and aircraft ground handling have
contracts based on a bonus-malus system, penalizing the
handling agent for delays caused by his staff. Several groups of
delay codes are qualified as station delays or airport delays. Therefore every minute delay
costs somebody money.
Most airlines use the
2-digit numeric codes, but
some prefer the alpha-numerical format.
Delay Codes starting with
0
Delay Codes starting with 0 are used for internal airline
purposes. Every airline is free to use these codes and to determine
particular application fields.
However the following codes are standard, even if some airlines
do not use them:
- 01 - 05 Airline internal codes
- 06 No gate/stand availability due to own airline activity
- 07 Aircraft connection by maintenance
- 08 Aircraft connection by micellanious, traffic, marketing
flight operations, ground handling, cabin services, etc.
- 09 Scheduled ground time less than
declared minimum ground time
Delay Codes starting with
1
These Codes are used to describe delays caused by Passenger and Baggage handling.
- 11 Late Check-in,
acceptance of passengers
after deadline
- 12 Late Check-in, congestion in check-in area
- 13 Check-in error
- 14 Oversales, booking errors
- 15 Boarding, discrepancies and paging, missing checked-in
passenger at gate
- 16 Commercial Publicity, Passenger Convenience, VIP, Press,
Ground meals and missing personal items
- 17 Catering order,
late or incorrect order given to supplier
- 18 Baggage processing, sorting, etc.
Delay Codes starting with
2
These Codes are used to describe delays caused by Cargo (21-26) and Mail Handling (27-29).
- 21A Documentation, errors, etc.
- 22 Late positioning
- 23 Late acceptance
- 24 Inadequate packing
- 25 Oversales, booking errors
- 26 Late preparation in warehouse
- 27 Mail Oversales, packing, etc.
- 28 Mail Late positioning
- 29 Mail Late acceptance
Delay Codes starting with
3
These Codes are used to describe delays caused by aircraft and
ramp handling
- 31 Aircraft documentation late or inaccurate, weight and balance
(Loadsheet), general declaration, passenger manifest, etc.
- 32 Loading, Unloading, bulky/special load, cabin load, lack of
loading staff
- 33 Loading Equipment, lack of or breakdown, e.g. container pallet loader, lack of staff
- 34 Servicing Equipment, lack of or breakdown, lack of staff,
e.g. steps
- 35 Aircraft Cleaning
- 36 Fuelling, Defuelling, fuel supplier
- 37 Catering, late delivery or loading
- 38 ULD, Containers, pallets, lack of or breakdown
- 39 Technical equipment, lack of or breakdown, lack of staff,
e.g. pushback
Delay Codes starting with
4
These Codes are used to describe technical delay reasons
- 41 Aircraft defects
- 42 Scheduled maintenance, late release
- 43 Non-scheduled maintenance, special checks and / or
additional works beyond normal maintenance
- 44 Spares and maintenance equipment, lack of or breakdown
- 45 AOG (Aircraft on ground for
technical reasons) Spares, to be carried to another station
- 46 Aircraft change for technical reasons
- 47 Standby
aircraft, lack of planned standby aircraft for technical
reasons
- 48 Scheduled cabin configuration and version adjustment
Delay Codes starting with
5
These Codes are used to describe damage to aircraft and automated
equipment failure.
- 51 Damage during flight operations, bird or lightning strike, turbulence, heavy or overweight landing
- 52 Damage during ground operations, collisions (other than
during taxiing, loading/offloading damage, contamination, towing, extreme weather
conditions
- 55 Departure Control System, Check-in, weight and balance
(loadcontrol), computer system error, baggage sorting, gate-reader
error or problems
- 56 Cargo preparation/documentation system
- 57 Flight
plans
- 58 Other computer systems
Delay Codes starting with
6
These Codes are assigned to Operations and Crew caused delays
- 61 Flight plan, late completion or change of flight
documentation
- 62 Operational requirements, fuel, load alteration
- 63 Late crew boarding or departure procedures
- 64 Flight deck
crew shortage, Crew rest
- 65 Flight deck crew special request or error
- 66 Late cabin crew boarding or departure
procedures
- 67 Cabin
crew shortage
- 68 Cabin crew error or special request
- 69 Captain request for security check,
extraordinary
Delay Codes starting with
7
These Codes explain weather caused delays.
- 71 Departure
station
- 72 Destination station
- 73 Enroute or
Alternate
- 75 De-Icing of aircraft, removal of ice/snow, frost
prevention
- 76 Removal of snow/ice/water/sand from airport/runway
- 77 Aircraft ground handling
impaired by adverse weather conditions
Delay Codes starting with
8
These Codes are used for Air Traffic Control (ATC)
Restrictions (81-84) and Airport or Governmental Authorities caused
delays.
- 81 ATC restriction en-route or capacity
- 82 ATC restriction due to staff shortage or equipment failure
en-route
- 83 ATC restriction at destination
- 84 ATC restriction due to weather at destination
- 85 Mandatory security
- 86 Immigration,
Customs, Health
- 87 Airport Facilities, parking stands, ramp congestion,
buildings, gate limitations, ...
- 88 Restrictions at airport of destination, airport/runway closed due obstruction, industrial
action, staff shortage, political unrest, noise abatement, night curfew, special flights,
...
- 89 Restrictions at airport of departure, airport/runway closed due obstruction, industrial
action, staff shortage, political unrest, noise abatement, night curfew, special flights,
start-up and pushback, ...
Delay Codes starting with
9
Codes uses for reactionary reasons or Miscellaneous.
- 91 Passenger or Load Connection,
awaiting load or passengers from another flight. Protection of stranded passengers onto a new
flight.
- 92 Through Check-in error, passenger and bagage
- 93 Aircraft rotation
- 94 Cabin crew rotation
- 95 Crew rotation (entire or cockpit crew)
- 96 Operations control, rerouting, diversion, consolidation,
aircraft change for reasons other than technical
- 97 Industrial action within own airline
- 98 Industrial action outside own airline
- 99 Miscellaneous, not elsewhere specified
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