ED Decision 2022/012/R
DETERMINATION OF DH/MDH FOR INSTRUMENT APPROACH OPERATIONS AND RUNWAY
When determining the DH/MDH in accordance with the obstacle clearance hight (OCH) for the category of aircraft and the published approach procedure DH or minimum descent height (MDH), the pilot should determine whether the obstacle limitation surface is appropriate for the type of instrument approach flown and runway as this matter may have an impact on the calculation of the OCH and DH/MDH. When this information is not available (e.g. not mentioned in the AIP, etc.), then the pilot should take into account TableĀ 8 or 9 below, as applicable, when determining the DH/MDH:
TableĀ 8
Runway type minima ā aeroplanes
Runway type |
Lowest DH/MDH (ft) |
PA runway, categoryĀ I |
200 |
NPA runway |
250 |
Non-instrument runway |
Circling minima as shown in TableĀ 1 in NCC.OP.112 |
TableĀ 9
Type of runway/FATO minima ā helicopters
Type of runway/FATO |
Lowest DH/MDH (ft) |
PA runway, categoryĀ I NPA runway Non-instrument runway |
200 |
Instrument FATO FATO |
200 250 |
TableĀ 8 does not apply to helicopter PinS approaches with instructions to āproceed VFRā.
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