China Metric Altitudes

[crj705]

On approach charts for airports in China, Jeppesen provides a ft/meters QHN conversion table. These conversions are more precise than the altitudes found in the FLAS diagram in the China AIP. When descending on an approach, are you setting the altitude based off of the FLAS diagram from the AIP or from the Jeppesen Chart, rounded up or to the nearest 100 feet?

For example, if told to descend to 3000M and use the Jeppesen table, you have to decide to round up or down and set 9800ft or 9900ft. The FLAS states this is 9800ft. I'm curious if any of your airlines specifically address this issue.

[rudestuff]

Flight levels are easy, use the charts. Usually it involves climbing an extra 100 ft. For decent and approach, our Part A says round to the nearest 100. So if it's 50 you can go either way I guess. I'd probably go up.

[B2N2]

Always round up.
You cannot go below a minimum altitude.

[pineteam]

We use the ones from the chart below. 3000 meters is 9800 feet set on the FCU and that’s how it’s coded in the FMS on the SID/STAR.

[galaxy flyer]

When I used to go thru metric FIRsI’d select meters in the PFD displays and then reference the approach in meters. Pretty simple

[BoeingDriver99]

You can always go below a minimum altitude… when visual.

[Noknoipobin]

IMHO ,It is not a minimum altitude that you have to round up and for the minimum altitude the chart already did it even in feet (aip table) including vector altitude . It is the China rule you have to fly exactly feet on AIP. What happen if Chinese pilot fly exactly on aip table altitude and you fly on a round-up one. “ Fly exactly feet “

Aip “ Pilots shall use the China FLAS Diagram to

determine the corresponding flight level in feet. The

aircraft shall be flown using the flight level in FEET.

Pilots should be aware that due to the rounding

differences, the metric readout of the onboard avionics

will not necessarily correspond to the cleared Flight

Level in meters however the difference will never be

more than 30 meters. ”

[rudestuff]

Originally Posted by B2N2

Always round up.
You cannot go below a minimum altitude.

nor can you go above a maximum!