A transport airplane has to be equipped with an altitude warning device. This system will warn the crew about:
- getting close to the preselected altitude, during both climb and descent.
- getting close to the preselected altitude, during climb only.
- the loss of altitude during take-off or missed approach.
- a wrong landing configuration.
- a variation higher or lower than a preselected altitude.
2.
3, 4.
1, 5.
1, 3, 4.