Aero-Terms are designed to be a daily reminder of the terms,
names, acronyms and explanations of the unique language that
populates the aviation world. Aerospace, sport aviation, fixed
wing, helo, you name it... it's all fair game.
Aero-Terms should serve as a quick but intriguing reminder of
the terms you may use every day, or an introduction to an aspects
of the Aero-World you may not yet be familiar with. ANN also
encourages readers to go beyond the FMI link, and further research
any intriguing terms.
When used in
conjunction with ATC instructions, gives the pilot the latitude to
delay compliance until a condition or event has been reconciled.
Unlike "pilot discretion," when instructions are prefaced "when
able," the pilot is expected to seek the first opportunity to
comply. Once a maneuver has been initiated, the pilot is expected
to continue until the specifications of the instructions have been
met. "When able," should not be used when expeditious compliance is