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, thus IATA
standardized the format of transmission of delay information into delay code
. These delay codes express who is responsible for the delay and who will be penalized. Normally, these 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, e..g., penalizing the handling agent
for delays caused by his staff. Several groups of delay codes are qualified as station delays
or airport delays
use the 2-digit numeric
codes, but some prefer the alphanumerical
Delay Codes starting with 0 (internal)
Delay codes starting with 0 are used for internal airline purposes. Airlines are free to define these codes and to determine particular application fields.
However the following codes are standard, even if some airlines do not use them:
- 00–05: These codes are left blank so that each airline may develop codes specifically to meet their own individual requirements, e.g., 03: "Three-class system" moving curtain.
- 06: No gate/stand availability due to own airline activity
- 07: Aircraft connection by maintenance
- 08: Aircraft connection by......