After tuning the correct ILS frquency, and receiving the correct ident, the pilot notice that the Localiser (LOC) and Glide Path (GP) indicators are both showing warning flags. The pilot confirms that the aircraft is within the prescribed coverage area of the ILS. What is the most probable reason for the warning flags showing?

Question

Accepted Answer

The aircraft fails to receive any modulating signals (90 Hz and 150 Hz).

Answer

More than full scale deflections are indicated.

Answer

Another aircraft ahead, on the same ILS approach, is disturbing the transmission.

Answer

An incorrect course is selected on the OBI or HSI.

Crowdly

After tuning the correct ILS frquency, and receiving the correct ident, the pilo...

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