mandatory altitude

mandatory altitude

An altitude depicted on an instrument approach procedure chart requiring the aircraft to maintain altitude at the depicted value. On aeronautical charts, the word MANDATORY, along with the altitude to be maintained, appears.
References in periodicals archive ?
On the ILS into KTEB, DANDY has a mandatory altitude of 1500 feet.
ALTITUDES 5500 Mandatory Altitude 2500 Minimum Altitude 4300 Maximum Altitude 3000 Recommended Altitude 5000 Mandatory Block 3000 Altitude
RELATED ARTICLE: MAXIMUM, MINIMUM, RECOMMENDED AND MANDATORY ALTITUDES
Lastly, an altitude listed above another altitude with a line above the top altitude and another line below the bottom altitude is a mandatory altitude block.
This procedure features a mandatory altitude of 1,500 at DANDY, as shown by the lines above and below the altitude.
Mandatory altitudes are easy to spot on approach plates.
If a DP includes mandatory altitudes for certain portions, that altitude will not be included in your clearance.
Mandatory altitudes on a glideslope are rare, but usually are for separation with traffic arriving at nearby airports (in this case, KSFO).
I would declare an emergency by squawking 7700, descend as to cross the mandatory altitudes stated on my assigned arrival, fly the approach looking for a green light and land.
With few exceptions, the altitudes published on our instrument approach plates are minimum altitudes, not mandatory altitudes.
But now the reality of getting established on a back-course localizer in bumpy clouds has you behind the curve and working hard to meet the mandatory altitudes on the stepdowns.