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Old 22nd August 2005 | 17:23
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Itswindyout
 
Joined: Mar 2003
Posts: 341
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From: deco stop
DH v MDA

Perhaps some clever bod, can answer this for me, and provide a reference in PAN ops or summit simular.

On a EFIS aircraft, ie G5, there are two options on the Display controller panel, for setting minima on the approach.

Do these numbers have any other function than a display on the PFD with either DH/MDA and the selected value.

One is labeled DH the other MDA.

In the past I would have always said DH is for a precision approach ie PAR/ILS, and MDA for a non precision approach.

However I have been instructed that now the DH is only for Rad Alt specified decision height approaches, ie Cat 2 and above.
MSA should be set for CAT 1 ILS aproaches.

I would appreciate a tie breaker for this question please.

As the EFB on my AC does not have chapter and verse of the regs installed, I am at a loss to answer the question that I was asked, and I dont want to be stupid all my life.... Windy.
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