How are enroute delays annotated on the Route of Flight on an 1801?

How are enroute delays annotated on the Route of Flight on an 1801?

• A. Airport Identifier/DHH+MM
• B. Time/Date Stamp
• C. Route Segment Code
• D. Delay Hours and Minutes

Answer: (A)

Enroute delays on the Route of Flight are shown by tying the delay to a specific point along the flight path. The correct method records the airport identifier for that location, then the delay duration in hours and minutes using the DHH+MM format. This combination provides both where the delay is occurring and how long it lasts, making the impact clear to anyone reviewing the 1801. A plain time stamp would not indicate location, a route segment code identifies the segment but not the delay duration, and listing just hours and minutes without a location would leave ambiguity about where the delay applies.