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Old 30th Jul 2011, 14:43
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FlyingStone
 
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MAPt/DA - LOWG

Hi!

I seem to have a bit of a problem with understanding where must the missed approach be initiated in the following example.

The VOR/DME approach for runway 35C in Graz (LOWG) requires you (on Jeppesen chart 13-2, conforming to EU OPS reuqirement to fly the non-precision approaches as CDFA) to fly level to GRZ NDB at 2300' and then descend via the 3.15° path towards the runway. Missed approach point is GRZ VOR and the decision altitude is 1500'. The problem is, table provided by the Jeppesen states that at 0 DME (effectively over the VOR and at MAPt) aircraft's altitude should be 1600', which is 100ft above the DA.

From ICAO Doc 8168:

6.1.6 If upon reaching the MAPt the required visual reference is not established, the procedure requires that a
missed approach be initiated at once in order to maintain protection from obstacles.
So basically, as it seems, you are required to initiate the missed approach overhead the VOR at 1600ft, when you are still 100ft above DA. Seems pointless to me that DA is then published at 1500ft, when there is no way to actually reach it, unless you descend below the CDFA profile. The situation becomes even more strange, when you check the chart in the Austrian AIP, which shows that you should be at 1500ft over the VOR (MAPt).

Any clarification on this subject would be highly appreciated.
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