AIM ¶ 4-3-15 — Gate Holding Procedures
AIM 4-3-15 explains gate hold procedures when departure delays exceed 15 minutes. Learn engine start advisories and departure sequencing for your checkride.
AIM 4-3-15 describes gate hold procedures, which ATC uses to keep aircraft at the gate (engines off) when departure delays are expected to exceed 15 minutes. This saves fuel and reduces congestion on taxiways.
Key points for pilots:
- Contact ground control or clearance delivery before starting engines — don't fire up the turbines and then ask for clearance when a delay is in effect.
- Departure sequence is based on your initial call-up time, not engine start time, unless flow control restrictions change it. Calling early preserves your place in line.
- Monitor the assigned frequency for engine startup advisories or revised proposed start times.
- For turbine-powered aircraft, the tower assumes you're ready for takeoff when you reach the runway or warm-up block unless you tell them otherwise.
Operationally, this matters because trying to start engines without checking in can put you out of sequence, waste fuel idling on the ramp, and create unnecessary radio congestion. This is a recommended procedure in the AIM, not a regulation, but it's how the system is designed to work efficiently.
Five FAA-written-style questions. Instant explanations, every answer cites its source — no account needed.
You are flying VFR in Class E airspace at 8,500 feet MSL during the day. What are your minimum visibility and cloud clearance requirements?