What is the maximum altitude for DUCT routes as described in JetBlue procedures?

What is the maximum altitude for DUCT routes as described in JetBlue procedures?

• A. FL260 and below
• B. FL220 and below
• C. FL200 and below
• D. FL180 and below

Answer: (B)

DUCT routes are planned to stay within a specific mid-altitude airspace, keeping traffic in a stable layer and simplifying airspace management. In JetBlue procedures, these routes have an upper limit of flight level 220, which is 22,000 feet. Operating above this level would place you into the upper-range routes and procedures, so the design of DUCT routes remains up to FL220 and below. That’s why the maximum altitude is FL220 and below.

DUCT routes are planned to stay within a specific mid-altitude airspace, keeping traffic in a stable layer and simplifying airspace management. In JetBlue procedures, these routes have an upper limit of flight level 220, which is 22,000 feet. Operating above this level would place you into the upper-range routes and procedures, so the design of DUCT routes remains up to FL220 and below. That’s why the maximum altitude is FL220 and below.