ILS Failure Flags RNAV

The ILSILS —Instrument Landing System failure flags will show in broadly one of three situations.

  1. If everything is working but you are not in the ILSILS —Instrument Landing System service area. In this case, you are not receiving a signal.
  2. If you are in the ILSILS —Instrument Landing System service area but the ground or airborne equipment is faulty or switched off. In this case, again, you are not receiving a signal.
  3. If there is a significant distortion of the radiation pattern while receiving the signal.

Get instant access to 815 Radio Navigation exam questions.
Start your free trial today.

Allow multiple correct answers

Which of the following will cause the ILSILS —Instrument Landing System failure flags to show?