NTSB report - ILS and ATC. How does it all come together?

Steven P. McNicoll wrote:
"Sam Spade" wrote in message
...

I doubt anyone knows whether he was using LOC or ILS minimuma.

The NTSB doesn't even understand the concepts:

"The ILS 36 has a minimum approach altitude of 376 feet above ground level
(AGL). The cloud ceiling was at 500 feet AGL. After the accident, the ILS
36 was taken out of service to be tested. It was flight checked on
December 24, 1997, with no anomalies found."

What does "minimum approach alitude" refer to?



It could only be an MDA.


How do you conclude that?

A decision altitude is a minimum approach altitude, too, in a broad use
of a term that lacks any official definition.

Besides, no one has any way of determining whether the pilot was flying
the LOC or ILS profile.


What does "376 feet above ground level" refer to?



At the time of this accident 440 MSL was the MDA for the S-LOC 36, that's
376 feet above the TDZE of 64 feet.


Yes, but "above ground level" is a term of ignorance. Above ground
level at the crash site, at the runway, or at the DA point, or along the
entire length of the final approach segment where the LOC DMA could
resonably apply?