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Troublesome T and A

Non-standard is one of those tricky terms that could mean anything from a trivial change to a detail critical enough to change your whole game plan-or ruin your day if ignored.

Gemini Sparkle

Key Takeaways:

  • Pilots must meticulously review chart notes for "non-standard" details concerning both instrument departures and alternate airport minimums, as these exceptions are critical for safety.
  • For departures, the absence of a listed Obstacle Departure Procedure (ODP) implies a "diverse departure," while published ODPs outline specific maneuvers required for safe climb, especially crucial when departing uncontrolled fields.
  • When selecting an alternate airport, standard weather minimums apply unless an "inverse A" symbol on an approach plate indicates non-standard alternate minimums, necessitating a careful review of specific criteria.
  • These critical "non-standard" details are found in different sections of Aeronav and Jeppesen charts, requiring pilots to know where to look and be aware of potential chart discrepancies or outdated information.
See a mistake? Contact us.

You’ve got to mind the details when it comes to takeoff and alternate notes. But it doesn’t help when the details themselves don’t make logical sense.
Non-standard is one of those tricky terms that could mean anything from a trivial change to a detail critical enough to change your whole game plan—or ruin your day if ignored.

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