Instrument Flying SI(OPS) 03-04

Question 1

When should altimetry callouts be made?

Answer 1

1) Leaving a current level for a subsequently assigned level
2) At transitional altitude/level (With QNH change or remaining)
3) 1000 ft prior to assigned leve
4) On Descent when:
- Passing every 5000 ft
- Every 1000 ft below 5000 ft
- 200 ft prior to MDA (or DA) during an instrument
approach

Question 2

When flying a TACAN approach using an FMS overlay, when should aircrew change the PFD Nav source from FMS to TACAN?

Answer 2

Prior to being established on finals.