Definition
A NOTAM contraction indicating that a scheduled aviation activity, service, or operation has been delayed or is being held for a period of time before resuming or commencing.
Plain English
DLA is shorthand used in NOTAMs to tell pilots that something has been pushed back or held up.
Context Anchor
Seen in NOTAMs and other shortened aviation notices where space is limited.
Derivation
From the English word delay, originally from Old French delaier, meaning to put off or postpone. The contraction DLA simply shortens the word for use in space-limited NOTAM text.
Why Pilots Care
Spotting DLA in a NOTAM tells the pilot that a scheduled operation, service, or activity is not running on its original timeline, which can affect routing, fuel planning, and arrival expectations.
Intuition Check
DLA is not a separate procedure, clearance, or airport facility. It simply means something has been delayed or is subject to delay.
Example Sentence 1
The NOTAM included DLA next to the scheduled runway closure, telling the crew the work had been pushed to a later time.
Example Sentence 2
Strong winds caused the arrival to be listed as DLA until the next hour.