Low temperature corrections
I am a bit puzzled by several aspects of this report, but can someone confirm that the chart on page 5 is correct?
It has an INDICATED altitude scale on the left which presumably means what the altimeters were showing, including the 2200 ft adjusted Split Crow crossing altitude. It then shows a calculated MDA of 813ft ASL - presumably Above Sea Level, and the Threshold Elevation at 449 ft ASL.
Working on the basis of 2 degC/1000ft lapse, for -6C at (roughly) 500ft field elevation, the sea level temp would be -5C, so the air mass temperature was ISA-20.
Applying the PANS-OPS approximation rule of thumb of 4% per 10 degrees below ISA, the correction would be 8%.
Shouldn't the threshold elevation shown also be corrected to 485' on the INDICATED altitude scale, and the calculated FPA be crossing the threshold higher as well? In fact doesn't it also need to be a bit higher to take the FPA to the intended touchdown point which is actually 463 feet AMSL = 500ft indicated???